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Rhodeo, Vol. 31, No. 2

Date: 1977
Subjects: Grahamstown -- Newspapers , Journalism, Students -- South Africa , Rhodes University -- Activate , Rhodes University -- Students , Student newspapers and periodicals -- South Africa
Language: English
Type: Text
Identifier: vital:14678 , http://hdl.handle.net/10962/d1019550
Description: Rhodeo is the Independent Student Newspaper of Rhodes University. Located in Grahamstown, Rhodeo was established in 1947, and renamed in 1994 as Activate. During apartheid Rhodeo became an active part of the struggle for freedom of expression as part of the now defunct South African Student Press Union. Currently Activate is committed to informing Rhodes University students, staff and community members about relevant issues, mainly on campus. These issues range from hard news to more creative journalism. While Activate acts as a news source, one of its main objectives it to be accessible as a training ground for student journalists. The newspaper is run entirely by the students and is published twice a term. Activate is a free newspaper which receives an annual grant from the Rhodes University Student Representative Council, however, majority of its revenue is generated through advertising.
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Date Issued: 1977

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Sensory dominance : an experiment across cultures

- Locke, Hester W

Authors: Locke, Hester W
Date: 1977
Subjects: Perception -- Testing , Senses and sensation -- Testing , Dominance (Psychology)
Language: English
Type: Thesis , Masters , MA
Identifier: vital:3214 , http://hdl.handle.net/10962/d1012744
Description: Physical and intellectual differences in the home environment of Xhosa and White children suggested that the interaction of touch and vision in situations of sensory conflict and the development of dominance may be different in children from these homes. Children aged 5-13 years were tested on apparatus which created a conflict of tactual and visual judgement about the perceived size of the stimulus. Xhosa and White subjects performed similarly except when only tactual judgement was allowed and the Xhosa group were less influenced by touch. The study concludes that for children touch and vision contribute equally to the resolution of sensory conflict when both senses are active in size-judgements and when only one mode is allowed for judging then the resolution is biased towards this mode. This outcome is different from that of experiments with adults and has implications for theories derived from them.
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Date Issued: 1977

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Some aspects of the theory, application, and computation of generalised inverses of matrices

- Cretchley, Partricia C

Authors: Cretchley, Partricia C
Date: 1977
Language: English
Type: Thesis , Masters , MSc
Identifier: http://hdl.handle.net/10962/6212 , vital:21063
Description: The idea of generalising the classical notion of the inverse of a non-singular matrix arose as far back as in 1920, but it was not until the late fifties that the development of the theory gained any impetus. Since then , as is the case in the development of many new concepts , work done in parallel in various parts of the world has resulted in a great deal of untidiness in the literature : confusion over terminology , and even duplication of theory. More recently, however, some attempts have been made to bring together people active in the field of generalised inverses, in order to reach consensus on some aspects of definition and terminology, and to publish more general works on the subject. Towards this purpose, a symposium on the theory and application of generalised inverses of matrices was held in Lubbock, Texas, and its proceedings published in 1968 (see [25] ). A few other works of this nature (see [4], (19a] ) have appeared , but the bulk of the literature still comprises numerous diverse papers offering further ideas on the theoretical properties which these matrices have , and drawing attention to their application in areas of statistics , numerical analysis , filtering , modern control and estimation theory, pattern recognition and many others. This essay offers a look at generalised inverses in the following way: firstly a broad basis and background is established in the first three chapters to provide greater understanding of the motivation for the remaining chapters, where the approach then changes to become far more detailed. Within this general framework, Chapter 1 offers a brief glimpse of the history and development of work in the field. In Chapter 2 some of the most significant properties of these inverses are described, while in Chapters 3 and 4 and 5 attention is given to interesting and remarkable computational algorithms relating to generalised inverses (some well suited to machine processing). The material of Chapters 4 and 5 is largely due to Decell, Stallings and Boullion, and Tanabe, in [6], [24] and [27], respectively, while the source of material for the first three chapters is the literature generally, with Penrose's two papers providing a rough framework for Chapters 1 and 2 (see [17]).
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Date Issued: 1977

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South African art, the romantic principle and the Grahamstown group

- Clark, George Phillip Haven

Authors: Clark, George Phillip Haven
Date: 1977
Subjects: Art, South African , Art -- South Africa -- Grahamstown
Language: English
Type: Thesis , Masters , MFA
Identifier: vital:2501 , http://hdl.handle.net/10962/d1014638
Description: The purpose of this essay is to examine the "rumblings in the belly of Leviathan from which we are able to diagnose his disease" (Comfort). Adopting a cyclical idea of art, it aims to point out that South African art has degenerated to a state where the much publicised so-called leaders of art are simply using charm techniques to woo the consent of a society whose metaphysics are derived from twentieth century collective materialism. The South African situation is examined, as is the Romantic principle underlying all genuine artistic activity. It is proposed that the cure lies in a reinstatement of this principle and in a readjustment of the concepts of reality and unreality. Finally, the Grahamstown Group is propounded as an embodiment of the Romantic principle with its implicit concept of artistic reality.
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Date Issued: 1977

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Studies on the completely mixed activated sludge treatment of fellmongery and tannery lime-sulphide effluents

- Rawlings, Douglas Eric

Authors: Rawlings, Douglas Eric
Date: 1977
Subjects: Tanneries -- Waste disposal , Sewage sludge -- South Africa -- Management , Sewage -- Purificiation -- Biological treatment , Water quality management -- South Africa , Water -- Purification -- Biological treatment -- South Africa
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:4112 , http://hdl.handle.net/10962/d1013052
Description: Industries producing highly polluted waste waters are having to purify their effluents to meet with ever increasing requirements laid down by water authorities. The South African Water Act of 1956 has prescribed a very high standard to which waste waters must conform before discharge into a South African water course. Enforcement of these standards falls under the jurisdiction of government authorities such as the Department of Water Affairs. Similarly, municipalities and other local authorities set standards with which trade effluents must comply before discharge into public sewers for treatment in a municipal sewage works. These local authorities are empowered to recover from the trader the additional costs incurred in treating trade effluents. Costs are usually levied in respect of volume, oxygen demand, settleable solids and the production of secondary sludge. In recent years, these standards have been enforced to an extent where the survival of several industries has become dependant on whether these industries are able to purify or dispose of their effluents in a manner acceptable to the water authorities. Chap. 1, p. 1.
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Date Issued: 1977

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The biology of Clarias Gariepinus (Burchell, 1822) in Lake Sibaya, Kwazulu, with emphasis on its role as a predator

- Bruton, Michael N

Authors: Bruton, Michael N
Date: 1977
Subjects: Catfishes -- South Africa -- KwaZulu-Natal -- Lake Sibaya. , Clarias , Clariidae
Language: English
Type: text , Thesis , Doctoral , PhD
Identifier: vital:5886 , http://hdl.handle.net/10962/d1013313
Description: Aspects of the biology of the sharptooth catfish, Clarias gariepinus (Burchell, 1822) were studied in a clear coastal lake (Lake Sibaya, KwaZulu.). Catfish reach maturity towards the end of the first year (total length 200-250mm) and breed in summer. Gonadal maturation is cyclical, and most fishes are ripe between September. and January e ach year. Maturation stages and fecundity are described. Twenty-two catfish spawning runs were witnessed. There were no large aggregations of catfish before the Summer rains, as reported in some impoundments and rivers, but catfish accumulated on the shallow terrace immediately before a spawning run. Spawning usually took place in flooded marginal areas after heavy rain on dark calm nights. Peak activity occurred between 20h00 and 02h30. Pre-nuptial aggression, courtship and mating are described and illustrated in detail for the first time from field observations. Gonadal products are released while in amplexus and fertilized externally. The eggs have an adhesive disc for attachment to plants, and develop rapidly. Early development and feeding are described. The growth rate of catfish was determined using rings on the pectoral spines, and validated using recent techniques. C.gariepinus in Lake Sibaya grow rapidly and remain in good condition to a length of 500mm, but larger catfish have a poor growth rate and condition, and few exceed 650mm. The modal length and weight of the Sibaya population is intermediate between that of other populations but the number and condition of larger catfish in Lake Sibaya is lower. Other studies on C.gariepinus growth are reviewed. Very high and low first year increments obtained previously may be due to methodological errors, but catfish do appear to have variable growth rates. The size reached by C.gariepinus is reviewed. Catfish are equipped morphologically and behaviourally to feed on a wide variety of·prey in different situations, but they usually feed at night on exposed, active benthic organisms. Social hunting facilitates the capture of prey which is too fast or manoevrable for a single predator. Food preferences are scored by three different methods and presented for the total catfish population and for different length groups, seasons, and habitats. Juveniles feed more often and on a greater variety of prey, and their condition is better than that of adults. The proportions of several food items in the diet changed at different lake levels as marginal areas became inundated. In particular, increasing lake levels resulted in a change in relative density of three cichlid prey in the shallow water feeding area of catfish. This situation provided the opportunity to study the effect of changing cichlid density on predation by catfish. The world literature on factors influencing the predator-prey relationship in fish is reviewed and several key factors are identified. The interaction of fish predators and prey in Africa, and particularly Lake Sibaya, is examined in detail, and prey density, modified by accessibility, is found to be an important factor. The effect of cichlid prey density on catfish predation was therefore investigated using field collections and experimental observations. Catfish prey on the cichlid species with greatest relative abundance, with some deviations which can be explained in terms of accessibility. The experimental results also describe feeding periodicity, imitative hunting and the effect of water depth , day-night light intensity changes and predator number on predation efficiency on cichlids. Catfish predation is discussed in terms of recent predation theory, and it is concluded that their ability to switch from one prey to another as prey availability (= density+ accessibility) changes , is an an important aspect of their success as predators. Catfish predate more efficiently on invertebrates, but feed largely on fishes after the first year. This preference for fish prey is probably related to food quality, as fishes contributed over 75% of the energy content of all ingested food, as well as abundant protein and the correct amino acid balance. Finally, I conclude that the role of C.gariepinus as a predator on S.mossambicus is three-fold: (a) to enhance species' fitness by removing enfeebled individuals i.e. to act as a 'cleanser' (b) to restrict the distribution of prey under certain conditions i.e. act as a 'restricter' (c) to dampen fluctuations in cichlid abundance i.e. act as a 'regulator'. The relative importance of these roles may alter at different lake levels in Lake Sibaya in response to changes in the vulnerability of fish prey.
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Date Issued: 1977

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The early history of Blythswood Missionary Institution

- Rodger, Alastair

Authors: Rodger, Alastair
Date: 1977
Subjects: Blythswood Missionary Institution -- History
Language: English
Type: Thesis , Masters , BDiv
Identifier: vital:1269 , http://hdl.handle.net/10962/d1013075
Description: The Mfengu, or Fingos, of the Transkei were a mixed group of refugees. Originally driven from Natal during the Mfecane, they moved into the Transkei and then the Ciskei. In the 1860's some were allowed by the Cape government to settle in an area in the Western Transkei which it had recently seized. The majority of those who moved were opposed to mission work and education. When therefore the government agent for Fingoland, Captain Blyth, and a Free Church of Scotland missionary, Richard Ross, gained the support of a few headmen for an educational Institution in the Transkei, and approached Dr James Stewart of Lovedale to found such an Institution on the lines of Lovedale, they had very slender support. Mfengu subscribe £10.00 towards the cost. Stewart agreed on condition the support for this somewhat startling and, to some, unpalatable request was gained mainly because it was known that the government intended introducing a hut tax which would be far more onerous than the levy which, it was estimated, would be required to find the sum Stewart was asking. Blyth was able to use the agreement to a voluntary levy for an institution to persuade the government to postpone the tax. The Institution was built on a larger scale than had been planned, for the Mfengu made two subscriptions, each larger than the total requested, and Stewart raised money in Scotland.
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Date Issued: 1977

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The effect of perceptual skill of RFT scores : a cross-cultural study

- Marais, W F

Authors: Marais, W F
Date: 1977
Subjects: Witkin, Herman A , Personality , Personality and culture -- Cross-cultural studies , Cross-cultural studies , Perception
Language: English
Type: Thesis , Masters , MSocSc
Identifier: vital:3285 , http://hdl.handle.net/10962/d1012838
Description: The increasing need to select individuals for tasks suited to their personality make-up, has added to the challenge psychology faces of developing tests which can be applied to subjects from different cultures and environments. Many attempts at such designs litter the history of industrial and cross- cultural personality research. Among those to have survived years of reassessment, is the cognitive style approach developed by Herman Witkin. Intro., p. 1.
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Date Issued: 1977

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The evolution of the working conditions and associated legislation of apprentices and child labour in British factories and trades from the late 18th to the middle of the 19th centuries

- Heaton, James R.

Authors: Heaton, James R.
Date: 1977
Subjects: Labor -- Great Britain -- History -- 18th century , Labor -- Great Britain -- History -- 19th century , Working class -- Great Britain -- History -- 18th century , Working class -- Great Britain -- History -- 19th century , Child labor -- Great Britain , Labor laws and legislation -- Great Britain -- History , Factories -- Great Britain -- Employees
Language: English
Type: Thesis , Masters , MA
Identifier: vital:1089 , http://hdl.handle.net/10962/d1012242 , Labor -- Great Britain -- History -- 18th century , Labor -- Great Britain -- History -- 19th century , Working class -- Great Britain -- History -- 18th century , Working class -- Great Britain -- History -- 19th century , Child labor -- Great Britain , Labor laws and legislation -- Great Britain -- History , Factories -- Great Britain -- Employees
Description: Both modern and contemporary commentators have over the past 140 years written many millions of words on the subject of the abuse of child labour in factories and trades in the first half of the nineteenth century. The subject was highly charged with emotion at that time. The detailed observations of intelligent and perceptive men contrast with the partial accounts of honest and not so honest early Victorians. Together they have blurred the definition between truth and the embellishment of it. This lack of clarity on the issue of child labour has left modern historians great scope for widely differing interpretations and the evidence for believing that conditions were as bad or as good as suited their particular point of view. It is regretted that there is insufficient material in South Africa to enter fully into the often bitter arguments of the, so called, 'optimists' and 'pessimists' in respect of the improvement or deterioration of the standard of living of the labouring classes in the first half of the nineteenth century. Child labour was not one of the inventions of the Industrial Revolution. The labour of children within the domestic economy had, certainly from the seventeenth and eighteenth centuries, been regarded as socially acceptable. The aim of this work is to trace the conditions of child labour in the early years of the Industrial Revolution as the spread of factories demanded more and more young hands and imposed an alien and sometimes inhuman discipline on the workers. As the numbers of children employed expanded not only in total but also as a proportion of the total labour force, the realisation that the labour of children was presenting a grave social problem gradually dawned upon the governments of the time. This work traces the development of legislation from the first faltering step forward of the Health and Morals of Apprentices Act of 1802 to the passing of the Factory Act of 1847 which provided for a ten hours' working day. This type of legislation was an experiment which developed in efficiency by trial and error. Detailed consideration is given to the arguments of the supporters and the opponents of restrictions being placed on the complete freedom of the manufacturers. This was a battle eventually to be won by the supporters of restriction on the freedom of the masters. Nearly twenty years have passed since detail ed consideration was given to the parallel development of the awareness that the labour of children was a problem and the steps taken to alleviate it. The aim in this work is to consider the most recent publications that deal with particular aspects of the problem. The intention is to penetrate the contradictory claims made in the first half of the nineteenth century, and to attempt to clarify as accurately as possible the realities of the conditions of child labour and to trace their improvement to the middle of the century.
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Date Issued: 1977

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The holy spirit in the theology of St. Luke

- Paterson, Torquil

Authors: Paterson, Torquil
Date: 1977
Subjects: Bible. Luke -- Criticism, interpretation, etc. , Holy Spirit -- Biblical teaching
Language: English
Type: Thesis , Bachelor , BDiv
Identifier: vital:1265 , http://hdl.handle.net/10962/d1013007
Description: The essay consists of five main chapters with an introduction and conclusion. This defines the limits of the essay and explains the methodology employed. These chapters are examined particularly with reference to the Spirit as the agent of fulfillment of the old, and the inaugurator of the new. 'The main text examined is Lk. 1.35. The Spirit is shown to be also used in a skillful linking and differentiation of John the Baptist and Jesus. Through a fairly detailed synoptic comparison, the peculiarly Lukan emphasis is brought to light. The Baptism is linked with 1.35 and the Transfiguration. Again both the Baptism and Temptation are shown to be seen in the light of the fulfillment of the Old Covenant. All the lines of fulfilment join together in the Spirit's descent on Jesus. The immediate result of this is the testing of his Messiahship, and Proclamation in the synagogue of Nazareth. This proclamation is coupled with the Luken rejection motif. The Spirit is seen to be especially involved in Jesus' ministries of exorcism and healing, but also in his preaching and teaching. The position of Lk 4.18-19 is seen to be of great importance. The main problem is the lack of specific reference to the Spirit. This is resolved in similar fashion to the question of the Messianic Secret. The relation of the apostles to the spirit is also discussed, since this is relevant to the ministry of the Church. Firstly the relation between the Transfiguration and Ascension is examined. This points to the fundamental centrality of the Ascension in Luke's theology. Pentecost is then seen as the fulfilling of the Ascension in the Church. Secondly, as a minor theme, the resurrection appearances are looked into and the similarities with Johannine thought are noted. This raises the question of the historicity of the Lukan schematization. In the examination of Pentecost itself the problem of the quotation from Joel and also the relation of Pentecost to the founding of the Church and the Gentile mission are raised. The Spirit is revealed to be active in two main areas : (1) the mission of the Church in evangelization - this is especialy seen in the areas of preaching, miracles and the life of the Church ; (2) the establishing and justification of the Gentile mission - this overriding concern is shown to obscure the other functions of the Spirit especially in the realm of Baptism and the Christian life of the individual. Thus Luke's historical sense is seen to be coupled with a theological desire to justify and bolster the Gentile mission. This draws out the various conclusions within the essay. The question of 'salvation-history' is raised and a solution found in terms of Luke's use of the Spirit. In broad outline the schema of Conzelmann is accepted. The Lukan eschatology is mentioned in an attempt to find a solution to questions raised by the comparison of Luke with Paul and John. This comparison is only meant to place the main conclusions of the essay within the context of the wider New Testament.
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Date Issued: 1977

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The intensifying vision of evil: the Gothic novel (1764-1820) as a self-contained literary cycle

- Letellier, Robert Ignatius

Authors: Letellier, Robert Ignatius
Date: 1977
Subjects: Gothic revival (Literature) , English fiction -- 18th century -- History and criticism , English fiction -- 19th century -- History and criticism
Language: English
Type: Thesis , Masters , MA
Identifier: vital:2274 , http://hdl.handle.net/10962/d1006920 , Gothic revival (Literature) , English fiction -- 18th century -- History and criticism , English fiction -- 19th century -- History and criticism
Description: The purpose of this study is to investigate the Gothic novel, a much neglected and misunderstood school, as a unified literary cycle. Attention has been centred on the domains or sub-systems of the novel where cultural models and generic traits are particularly important and distinguishable: character, plot (with the necessary evocation of a fictional world), theme and symbol. No apology is offered for the many quotations: far too little recourse is made to the texts in most discussions of the Gothic novel and this has all too frequently led to misapprehensions and unfounded generalizations. The opening section places the genre in a historio-literary context, and centres attention on the major novels, while the final section opens additional perspectives on the cycle, suggests the importance of the Gothic school for modern times, and illustrates the inevitability of its central vision of evil.
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Date Issued: 1977

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The nature of the community of the Dead Sea scrolls (with particular reference to the manual of discipline) and its relation to the church of the New Testament

- Draper, Jonathan A

Authors: Draper, Jonathan A
Date: 1977
Subjects: Dead Sea scrolls Dead Sea scrolls -- Criticism, interpretation, etc. Apocalyptic literature -- History and criticism Qumran community
Language: English
Type: Thesis , Bachelor , BDiv
Identifier: vital:1249 , http://hdl.handle.net/10962/d1011424
Description: The scope of our examination of the ideas and beliefs of the Qumran sect and the Church of the New Testament is limited to what contributes to our understanding of the nature of the respective communities. No attempt is made to present a full theological examination of the concepts which arise. The aim is not an exhaustive treatment, but rather to suggest areas where the beliefs of the communities throw light on each other. Our method is to begin by establishing the beliefs of the Qumran sect in each case, with particular reference to the Manual of Discipline, and then comparing this with the corresponding concept in the New Testament. This avoids the danger of reading back later Christian ideas into our treatment of the Scrolls. In our examination of the New Testament texts, we shall not assume that they constitute a unity nor that they can be taken at face value, but that they bear the marks of the interests of the early Church and of the conflicting tendencies and practices which marked its development. Consequently the tools of Form, Source and Redaction Criticism are utilized where they can contribute to our purpose. Chapter 1, p. vi.
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Date Issued: 1977

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The performance of a 22 GHz radio telescope

- Gaylard, Michael John

Authors: Gaylard, Michael John
Date: 1977
Subjects: Radio telescopes , Paraboloid
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:5520 , http://hdl.handle.net/10962/d1011946 , Radio telescopes , Paraboloid
Description: The performance of the Rhodes 22 GHz radio telescope and its improvement are discussed in this thesis. The reflector surfaces of the Cassegrain antenna were surveyed and the surface errors minimised, while the magnitude of thermal and gravitational defomations was calculated. The design and operation of the microwave front end has been improved, and the mixer performance characterised. The continuum and spectral line receivers and their sensitivity are described. The aperture efficiency, which has been raised from 0,47 to 0,57, was deduced from solar and lunar observations and atmospheric attenuation measurements. The antenna beam pattern was also obtained from the observations, with the aid of a computer program, and is compared to that predicted for the telescope.
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Date Issued: 1977

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The polysaccharides of Opuntia ficus-indica (L.) Mill. and Opuntia aurantiaca Lindl.

- McGarvie, Donald

Authors: McGarvie, Donald
Date: 1977
Subjects: Polysaccharides
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:4438 , http://hdl.handle.net/10962/d1007597
Description: The partially acetylated acidic mucilage isolated from the cactus Opuntia ficus-indica consists of a highly branched molecule containing D-galactose, L-arabinose, D-xylose, D-galacturonic acid and L-rhamnose in the ratio 2.9:6.6:3.8:1.3 : 1.0. A partial hydrolysis study led to the isolation of fourteen oligosaccharides and a degraded polysaccharide. Periodate oxidation of the degraded polysaccharide and methylation analysis of the degraded and reduced degraded polysaccharides led to the proposal of a structure for the degraded polysaccharide consisting of a chain of alternating α-l,4-D-galactopyranosyluronic acid and β-1,2-Lrhamnopyranosyl units with branches consisting of short chains of β-1,6-D-galactopyranosyl units Iinked to C-3 of the rhamnose residues. An insight into the nature of the peripheral side-chains was obtained by methylation studies of the oligosaccharides and the native polysaccharide. The majority of the side-chains are terminated by D-xylopyranosyl and L-arabinofuranosyl units while there is a small proportion of D-galactopyranosyl end-groups. The remaining units of the peripheral chains consists of mainly 1,3- and 1,5-1 inked L-arabinofuranosyl units. The acidic polysaccharide isolated from the jointed cactus Opuntia aurantiaca contains D-galactose, L-arabinose, D-xylose, D-galacturonic acid and L-rhamnose in the ratio 5.9:5 .5:3.4: 1. 2:1.0 . A partial hydrolysis study revealed a similar series of galactose containing oligosaccharides as was identified from the mucilage of Opuntia ficus-indica. The degraded polysaccharide isolated from the partial hydrolysate was methylated and a possible structure proposed for the repeating unit. Methylation studies of the native polysaccharide indicated a polysaccharide with a more complex structure than that for the mucilage of Opuntia ficus-indica.
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Date Issued: 1977

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The structure of aliphatic amine adducts of uranyl acetylacetonate. II. Dioxobis(2,4-pentanedionato)mono (2-N,N-dimethylaminopentan-4-one)uranium(VI)

- Nassimbeni, L R, Orpen, G, Pauptit, R A, Rodgers, Allen L, Haigh, John M

Authors: Nassimbeni, L R , Orpen, G , Pauptit, R A , Rodgers, Allen L , Haigh, John M
Date: 1977
Language: English
Type: text , Article
Identifier: vital:6416 , http://hdl.handle.net/10962/d1006533
Description: Introduction: In a previous analysis of a compound of this type, we have established that the adduct molecule is bonded through O and that the geometry about U is pentagonal bipyramidal (Haigh, Nassimbeni, Pauptit, Rodgers & Sheldrick, 1976). We have carried out the present analysis to study the conformational effects on the ligand brought about by substitution at N.
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Date Issued: 1977

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The structure of aliphatic amine adducts of uranyl acetylacetonate. III. Dioxobis(2,4-pentanedionato)mono (2-N-isopropylaminopentan-4-one)uranium(VI)

- Rodgers, A L, Nassimbeni, L R, Haigh, John M

Authors: Rodgers, A L , Nassimbeni, L R , Haigh, John M
Date: 1977
Language: English
Type: text , Article
Identifier: vital:6419 , http://hdl.handle.net/10962/d1006552
Description: Introduction: In two earlier structural determinations of compounds of this type we have shown that the conformation of the adduct moiety is dependent on the formation of intramolecular N-H...0 hydrogen bonds (part I: Haigh, Nassimbeni, Pauptit, Rodgers & Sheldrick, 1976; part II: Nassimbeni, Orpen, Pauptit, Rodgers & Haigh, 1977). We have carried out the present analysis to study the conformational effects on the ligand brought about by the steric influence of an isopropyl substituent at N.
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Date Issued: 1977

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The structure of aliphatic amine adducts of uranyl acetylacetonate. IV. Dioxobis(2,4-pentanedionato) mono(2-aminopentan-4-one)uranium(VI)

- Rodgers, A L, Nassimbeni, L R, Pauptit, R A, Orpen, G, Haigh, John M

Authors: Rodgers, A L , Nassimbeni, L R , Pauptit, R A , Orpen, G , Haigh, John M
Date: 1977
Language: English
Type: text , Article
Identifier: vital:6420 , http://hdl.handle.net/10962/d1006555
Description: Introduction: We have shown in three earlier determinations of aliphatic amine adducts of U02(AA)2 (part I: Haigh, Nassimbeni, Pauptit, Rodgers & Sheldrick, 1976; part II: Nassimbeni, Orpen, Pauptit, Rodgers & Haigh, 1977; part III: Rodgers, Nassimbeni & Haigh, 1977) that the conformation of the adduct is dependent on its ability to form hydrogen bonds. The present compound has two H atoms available for hydrogen bonding and may be regarded as the parent of the series.
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Date Issued: 1977

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