One of R J Painter's grandsons
- Kisch, H
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22078 , vital:22997 , PIC/M 34 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22078 , vital:22997 , PIC/M 34 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
One of R J Painter's grandsons
- Kisch, H
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22097 , vital:22999 , PIC/M 35 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22097 , vital:22999 , PIC/M 35 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
One of R J Painter's grandsons
- Kisch, H
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22068 , vital:22995 , PIC/M 33 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
- Authors: Kisch, H
- Subjects: Painter family -- Photographs , Painter, R J -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/22068 , vital:22995 , PIC/M 33 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Set of photographs - Head and shoulders portrait of R J Painter of Fort Beaufort and full-length portraits of 4 grandsons including Frank Ellis aged 16 months (1883), 3 of them wearing sailor suits. Photos taken between 1865 and 1888.
- Full Text: false
One of the guns that bombarded Fordsburg from 11 o'clock till 10 minutes past noon on Tuesday
- Subjects: Transvaal (South Africa)-- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/47194 , vital:25687 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/A 2715_117
- Description: Album of photographs of Jameson Raid events, especially in Johannesburg and Pretoria; the Braamfontein dynamite explosion of February 1896; Mine and family views; the 1922 Miners' rebellion (press cuttings); British ? Scenes. Compiler unidentified, 1895-1922. , Gold Fields of South Africa Ltd. (donor)
- Full Text: false
- Subjects: Transvaal (South Africa)-- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/47194 , vital:25687 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/A 2715_117
- Description: Album of photographs of Jameson Raid events, especially in Johannesburg and Pretoria; the Braamfontein dynamite explosion of February 1896; Mine and family views; the 1922 Miners' rebellion (press cuttings); British ? Scenes. Compiler unidentified, 1895-1922. , Gold Fields of South Africa Ltd. (donor)
- Full Text: false
Ons woon en werk met afval in Frankdale
- The environmental advisory unit
- Authors: The environmental advisory unit
- Subjects: The environmental advisory unit
- Language: Afrikaans, Xhosa
- Type: text
- Identifier: http://hdl.handle.net/10962/168783 , vital:41647
- Description: Ons woon langsaan ‘n vullishoop, 25km buite Kaapstad, oppad na Malmesbury. Ons plek se naam is Frankdale. Ons het geen skole, toilette of elektrisiteit, en ook geen gesondheidsklinieke nie. ‘n Mobiele kliniek kom een keer per maand.
- Full Text:
- Authors: The environmental advisory unit
- Subjects: The environmental advisory unit
- Language: Afrikaans, Xhosa
- Type: text
- Identifier: http://hdl.handle.net/10962/168783 , vital:41647
- Description: Ons woon langsaan ‘n vullishoop, 25km buite Kaapstad, oppad na Malmesbury. Ons plek se naam is Frankdale. Ons het geen skole, toilette of elektrisiteit, en ook geen gesondheidsklinieke nie. ‘n Mobiele kliniek kom een keer per maand.
- Full Text:
Opening address to Conference of Headmasters and Headmistresses of Private Schools - 1977
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7353 , http://hdl.handle.net/10962/d1017082
- Full Text:
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7353 , http://hdl.handle.net/10962/d1017082
- Full Text:
Opening ceremony - group photograph
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/14011 , vital:21880 , PIC/M 5829
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/14011 , vital:21880 , PIC/M 5829
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
Opening Ceremony - The curious incident of the large brick in the daytime
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/14088 , vital:21893 , PIC/M 5830
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/14088 , vital:21893 , PIC/M 5830
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
Opening Ceremony at the Valve Tower
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/13987 , vital:21878 , PIC/M 5828
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Subjects: Maden Dam (South Africa) -- History -- Photographs Reservoirs -- South Africa Pirie Water Scheme -- South Africa
- Type: Image
- Identifier: http://hdl.handle.net/10962/13987 , vital:21878 , PIC/M 5828
- Description: This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant recieved from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
Opening ceremony of New Town Hall
- Subjects: Royal visit -- South Africa Gold Fields of South Africa Ltd. (South Africa) -- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/26868 , vital:23490 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/A 2890
- Description: Commemorative album of views and printed documents taken during the visit of Their Royal Highnesses the Duke and Duchess of Cornwall and York to Natal, 13-15 August, 1901. Natal, 1901 , Gold Fields of South Africa Ltd. (donor)
- Full Text: false
- Subjects: Royal visit -- South Africa Gold Fields of South Africa Ltd. (South Africa) -- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/26868 , vital:23490 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/A 2890
- Description: Commemorative album of views and printed documents taken during the visit of Their Royal Highnesses the Duke and Duchess of Cornwall and York to Natal, 13-15 August, 1901. Natal, 1901 , Gold Fields of South Africa Ltd. (donor)
- Full Text: false
Opening of Parliament in Grahamstown 1864
- Subjects: Grahamstown (South Africa) -- Pictorial works , Parliament (South Africa) -- history
- Type: Image
- Identifier: vital:14218 , http://hdl.handle.net/10962/d1018142 , MS 10 542 , CD 55
- Description: Showing the opening of the only Parliamentary session ever held away from Cape Town.
- Full Text: false
- Subjects: Grahamstown (South Africa) -- Pictorial works , Parliament (South Africa) -- history
- Type: Image
- Identifier: vital:14218 , http://hdl.handle.net/10962/d1018142 , MS 10 542 , CD 55
- Description: Showing the opening of the only Parliamentary session ever held away from Cape Town.
- Full Text: false
Opening of Quad II
- Subjects: Rhodes University -- Buildings -- Photographs Rhodes University -- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/36548 , vital:24563 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 6609
- Full Text: false
- Subjects: Rhodes University -- Buildings -- Photographs Rhodes University -- History -- Photographs
- Type: Image
- Identifier: http://hdl.handle.net/10962/36548 , vital:24563 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , PIC/M 6609
- Full Text: false
Opening of Rhodes Summer School 1975 - East London Library, November 3rd 1975
- Authors: Henderson, Derek Scott
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7333 , http://hdl.handle.net/10962/d1017061
- Full Text:
- Authors: Henderson, Derek Scott
- Subjects: Rhodes University
- Language: English
- Type: Text
- Identifier: vital:7333 , http://hdl.handle.net/10962/d1017061
- Full Text:
Opening of Robert Niven Trust school at Amanzi farm 1978
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7368 , http://hdl.handle.net/10962/d1017248
- Full Text:
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7368 , http://hdl.handle.net/10962/d1017248
- Full Text:
Opening of the NIC - Sensors by the Minister of Science Me Naledi Pandor
- Authors: Nyokong, Tebello
- Identifier: vital:7229 , http://hdl.handle.net/10962/d1006048
- Description: Opening of the NIC - Sensors by the Minister of Science Me Naledi Pandor on 13 September 2010
- Full Text: false
- Authors: Nyokong, Tebello
- Identifier: vital:7229 , http://hdl.handle.net/10962/d1006048
- Description: Opening of the NIC - Sensors by the Minister of Science Me Naledi Pandor on 13 September 2010
- Full Text: false
Opening Professor Scully's multi-image presentation
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7385 , http://hdl.handle.net/10962/d1017274
- Full Text:
- Authors: Henderson, Derek Scott
- Language: English
- Type: Text
- Identifier: vital:7385 , http://hdl.handle.net/10962/d1017274
- Full Text:
Optical nonlinearities and photophysicochemical behaviour of green and blue forms of lutetium bisphthalocyanines
- Sekhosana, Kutloano Edward, Amuhaya, Edith, Mack, John, Nyokong, Tebello
- Authors: Sekhosana, Kutloano Edward , Amuhaya, Edith , Mack, John , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7316 , http://hdl.handle.net/10962/d1020543
- Description: A rare earth sandwich-type phthalocyanine: bis-{2,3,9,10,16,17,23,24-octa(4-tert-butylphenoxy) phthalocyaninato} lutetium(III) has been synthesized. The photophysical and nonlinear optical behavior of both the “green” and “blue” forms ([LuIIIPc2] and [LuIIIPc2]−, respectively) of the complex have been investigated. High triplet state and singlet oxygen quantum yield values were obtained for the neutral blue form which contains no unpaired electrons. Relatively high third order susceptibility and hyperpolarizability values of the order of 10−10 and 10−28 esu were obtained for both the green and blue forms, respectively. A very low threshold intensity of 0.00051 J cm−2 was obtained for the blue form. Hence the complex shows promise for non-linear optical applications. , Original publication is available at http://dx.doi.org/10.1039/C4TC00505H
- Full Text:
- Authors: Sekhosana, Kutloano Edward , Amuhaya, Edith , Mack, John , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7316 , http://hdl.handle.net/10962/d1020543
- Description: A rare earth sandwich-type phthalocyanine: bis-{2,3,9,10,16,17,23,24-octa(4-tert-butylphenoxy) phthalocyaninato} lutetium(III) has been synthesized. The photophysical and nonlinear optical behavior of both the “green” and “blue” forms ([LuIIIPc2] and [LuIIIPc2]−, respectively) of the complex have been investigated. High triplet state and singlet oxygen quantum yield values were obtained for the neutral blue form which contains no unpaired electrons. Relatively high third order susceptibility and hyperpolarizability values of the order of 10−10 and 10−28 esu were obtained for both the green and blue forms, respectively. A very low threshold intensity of 0.00051 J cm−2 was obtained for the blue form. Hence the complex shows promise for non-linear optical applications. , Original publication is available at http://dx.doi.org/10.1039/C4TC00505H
- Full Text:
Optical nonlinearities in non-peripherally substituted pyridyloxy phthalocyanines: a combined effect of symmetry, ring-strain and demetallation
- Sanusi, Kayode, Antunes, Edith M, Nyokong, Tebello
- Authors: Sanusi, Kayode , Antunes, Edith M , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7301 , http://hdl.handle.net/10962/d1020375
- Description: The optical nonlinearities of six non-peripherally-substituted pyridyloxy phthalocyanines have been studied at 532 nm using a nanosecond Z-scan technique in a dimethyl sulphoxide solution. Ring-strain effects and the absence of a metal center were found to greatly reduce the inherent high nonlinearities expected of some of these phthalocyanine complexes. Of the six molecules investigated, 1(4),8(11),15(18),22(25)-tetrakis-(2-pyridyloxy)phthalocyaninato lead(II) 3, 1(4),8(11),15(18),22(25)-tetrakis-(2-pyridyloxy)phthalocyanine 5, and 1(4),8(11),15(18),22(25)-tetrakis-(4-pyridyloxy)phthalocyanine 6 were found to exhibit negligible nonlinear optical behavior, due to either the absence of asymmetry or central metal and/or the presence of a ring-strain effect. A two-photon absorption process was found to be the major contributor to the observed reverse saturable absorption (RSA) in 1(4),8(11),15(18),22(25)-tetrakis-(4-pyridyloxy)phthalocyaninato lead(II) 4, 1(4)-mono-(2-pyridyloxy)phthalocyaninato lead(II) 7, and 1(4)-mono-(4-pyridyloxy)phthalocyaninato lead(II) 8, with large two-photon absorption cross-section, high hyperpolarizability and high third-order susceptibility values in the range of 4.53 × 10−43–5.33 × 10−42 cm4 s per photon, 1.61 × 10−28–1.89 × 10−27 esu and 9.73 × 10−12–7.05 × 10−11 esu respectively. , Original publication is available at http://dx.doi.org/10.1039/C3DT52462K , Arbortext Advanced Print Publisher 9.1.520/W Unicode , Acrobat Distiller 10.0.0 (Windows); modified using iText� 5.3.3 �2000-2012 1T3XT BVBA (AGPL-version)
- Full Text:
- Authors: Sanusi, Kayode , Antunes, Edith M , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7301 , http://hdl.handle.net/10962/d1020375
- Description: The optical nonlinearities of six non-peripherally-substituted pyridyloxy phthalocyanines have been studied at 532 nm using a nanosecond Z-scan technique in a dimethyl sulphoxide solution. Ring-strain effects and the absence of a metal center were found to greatly reduce the inherent high nonlinearities expected of some of these phthalocyanine complexes. Of the six molecules investigated, 1(4),8(11),15(18),22(25)-tetrakis-(2-pyridyloxy)phthalocyaninato lead(II) 3, 1(4),8(11),15(18),22(25)-tetrakis-(2-pyridyloxy)phthalocyanine 5, and 1(4),8(11),15(18),22(25)-tetrakis-(4-pyridyloxy)phthalocyanine 6 were found to exhibit negligible nonlinear optical behavior, due to either the absence of asymmetry or central metal and/or the presence of a ring-strain effect. A two-photon absorption process was found to be the major contributor to the observed reverse saturable absorption (RSA) in 1(4),8(11),15(18),22(25)-tetrakis-(4-pyridyloxy)phthalocyaninato lead(II) 4, 1(4)-mono-(2-pyridyloxy)phthalocyaninato lead(II) 7, and 1(4)-mono-(4-pyridyloxy)phthalocyaninato lead(II) 8, with large two-photon absorption cross-section, high hyperpolarizability and high third-order susceptibility values in the range of 4.53 × 10−43–5.33 × 10−42 cm4 s per photon, 1.61 × 10−28–1.89 × 10−27 esu and 9.73 × 10−12–7.05 × 10−11 esu respectively. , Original publication is available at http://dx.doi.org/10.1039/C3DT52462K , Arbortext Advanced Print Publisher 9.1.520/W Unicode , Acrobat Distiller 10.0.0 (Windows); modified using iText� 5.3.3 �2000-2012 1T3XT BVBA (AGPL-version)
- Full Text:
Optical properties and electronic structures of axially-ligated group 9 porphyrins
- Wang, Bei-Bei, Zuo, Huiping, Mack, John, Majumdar, Poulomi, Nyokong, Tebello, Chan, Kin Shing, Shen, Zhen
- Authors: Wang, Bei-Bei , Zuo, Huiping , Mack, John , Majumdar, Poulomi , Nyokong, Tebello , Chan, Kin Shing , Shen, Zhen
- Language: English
- Type: Article
- Identifier: vital:7295 , http://hdl.handle.net/10962/d1020358
- Description: A series of group 9 metal tetra-(p-tolyl)-porphyrin (M(ttp), M = Co(II), Rh(III), Ir(III)) complexes with axial phenyl substituents have been synthesized and characterized. An aryl bromide cleavage reaction of transition metal complexes was used to prepare the complexes from Co(ttp), Rh(ttp)Cl and Ir(ttp)COCl, respectively. Magnetic circular dichroism (MCD) spectroscopy and TD-DFT calculations have been used to study trends in the optical spectra and electronic structures. The effect of introducing different para-substituents on the phenyl substituents was examined. During fluorescence emission studies, phosphorescence was observed for the Ir(III) complexes in the near infrared (NIR) region. , Original publication is available at http://dx.doi.org/10.1142/S108842461550073X
- Full Text: false
- Authors: Wang, Bei-Bei , Zuo, Huiping , Mack, John , Majumdar, Poulomi , Nyokong, Tebello , Chan, Kin Shing , Shen, Zhen
- Language: English
- Type: Article
- Identifier: vital:7295 , http://hdl.handle.net/10962/d1020358
- Description: A series of group 9 metal tetra-(p-tolyl)-porphyrin (M(ttp), M = Co(II), Rh(III), Ir(III)) complexes with axial phenyl substituents have been synthesized and characterized. An aryl bromide cleavage reaction of transition metal complexes was used to prepare the complexes from Co(ttp), Rh(ttp)Cl and Ir(ttp)COCl, respectively. Magnetic circular dichroism (MCD) spectroscopy and TD-DFT calculations have been used to study trends in the optical spectra and electronic structures. The effect of introducing different para-substituents on the phenyl substituents was examined. During fluorescence emission studies, phosphorescence was observed for the Ir(III) complexes in the near infrared (NIR) region. , Original publication is available at http://dx.doi.org/10.1142/S108842461550073X
- Full Text: false