title: Bimetallic nickel complexes with bridging dithiolato Schiff base ligands: synthesis, mass spectral characterisation and electrochemistry

authors: Moutloali, Richard M.

subjects: dithiolato schiff base

abstract: Schiff base dithiols with thiophene or phenyl linkers were prepared from condensation of the dialdehydes 2,5-(OHC)₂C₄H₂S, 1,3-(OHC)₂C₆H₄, 1,4-(OHC)₂C₆H₄ and 1,4'-(OHC)₂(C₆H₄)₂ with 4-H₂NC₆H₄(SH). The Schiff base dithiols readily reacted with Ni( ⁵-C₅H₅)(PR₃)Br (R=Bu or Ph) in the presence of Et₃N to form bimetallic complexes ( ⁵-C₅H₅)(PR₃)Ni&unknown;SC₆H₄N&unknown;C(H)ArC(H)&unknown;NC₆H₄S&unknown;Ni(PR₃)( ⁵-C₅H₅) (Ar=C₄H₂S (6), 1,3-C₆H₄ (7), 1,4-C₆H₄ (8), 1,4'-(C₆H₄)₂ (9). The bimetallic nature was established from elemental analysis and mass spectrometry. Cyclic voltammetry of complexes 6, 8 and 9 are indicative of electronic communication between the nickel centres via the bridging dithiolato Schiff base ligands.

text: Bimetallic nickel complexes with bridging dithiolato Schiff base ligands: synthesis, mass spectral characterisation and electrochemistry Schiff base dithiols with thiophene or phenyl linkers were prepared from condensation of the dialdehydes 2,5-(OHC)₂C₄H₂S, 1,3-(OHC)₂C₆H₄, 1,4-(OHC)₂C₆H₄ and 1,4'-(OHC)₂(C₆H₄)₂ with 4-H₂NC₆H₄(SH). The Schiff base dithiols readily reacted with Ni( ⁵-C₅H₅)(PR₃)Br (R=Bu or Ph) in the presence of Et₃N to form bimetallic complexes ( ⁵-C₅H₅)(PR₃)Ni&unknown;SC₆H₄N&unknown;C(H)ArC(H)&unknown;NC₆H₄S&unknown;Ni(PR₃)( ⁵-C₅H₅) (Ar=C₄H₂S (6), 1,3-C₆H₄ (7), 1,4-C₆H₄ (8), 1,4'-(C₆H₄)₂ (9). The bimetallic nature was established from elemental analysis and mass spectrometry. Cyclic voltammetry of complexes 6, 8 and 9 are indicative of electronic communication between the nickel centres via the bridging dithiolato Schiff base ligands.

year: 2002

title: Benefit sharing: Why inclusive provenance metadata matter

authors: Golan, J

abstract: Fair and equitable benefit sharing of genetic resources is an expectation of the Nagoya Protocol. Although the Nagoya Protocol does not yet formally apply to Digital Sequence Information (“DSI”), discussions are currently underway regarding to include such data through ongoing Convention on Biological Diversity (“CBD”) negotiations. While Indigenous Peoples and Local Communities (“IPLC”) expect the value generated from genomic data to be subject to benefit sharing arrangements, a range of views are currently being expressed by Nation States, IPLC and other stakeholders. The use of DSI gives rise to unique considerations, creating a gray area as to how it should be considered under the Nagoya Protocol’s Access and Benefit Sharing (“ABS”) principles. One way for benefit sharing to be enhanced is through the connection of data to proper provenance information. A significant development is the use of digital labeling systems to ensure that the origin of samples is appropriately disclosed. The Traditional Knowledge and Biocultural Labels initiative offers a practical option for data provided to genomic databases. In particular, the BioCultural Labels (“BC Labels”) are a mechanism for Indigenous communities to identify and maintain provenance, origin and authority over biocultural material and data generated from Indigenous land and waters held in research, cultural institutions and data repositories. This form of cultural metadata adds value to the research endeavor and the creation of Indigenous fields within databases adds transparency and accountability to the research environment.

text: Benefit sharing: Why inclusive provenance metadata matter Fair and equitable benefit sharing of genetic resources is an expectation of the Nagoya Protocol. Although the Nagoya Protocol does not yet formally apply to Digital Sequence Information (“DSI”), discussions are currently underway regarding to include such data through ongoing Convention on Biological Diversity (“CBD”) negotiations. While Indigenous Peoples and Local Communities (“IPLC”) expect the value generated from genomic data to be subject to benefit sharing arrangements, a range of views are currently being expressed by Nation States, IPLC and other stakeholders. The use of DSI gives rise to unique considerations, creating a gray area as to how it should be considered under the Nagoya Protocol’s Access and Benefit Sharing (“ABS”) principles. One way for benefit sharing to be enhanced is through the connection of data to proper provenance information. A significant development is the use of digital labeling systems to ensure that the origin of samples is appropriately disclosed. The Traditional Knowledge and Biocultural Labels initiative offers a practical option for data provided to genomic databases. In particular, the BioCultural Labels (“BC Labels”) are a mechanism for Indigenous communities to identify and maintain provenance, origin and authority over biocultural material and data generated from Indigenous land and waters held in research, cultural institutions and data repositories. This form of cultural metadata adds value to the research endeavor and the creation of Indigenous fields within databases adds transparency and accountability to the research environment.

year: 2022

title: Mokena Hou and his wife Rina

authors: Hart, Philip

abstract: Mokena Hou had a distinguished whakapapa, but as nephew to Hou was subordinate to the latter’s son, Karauna Hou. He was born near the Te Aroha hot pools, and his future wife, Rina, who also had illustrious ancestors, including some Ngati Haua, was born in the same area. Both were affiliated to several hapu. After the Hauraki tribes fled from Ngapuhi in 1821, he would be present at the battle of Taumatawiwi in 1830 (though he did not fight) and participated in a later siege of the Ngati Haua pa at Matamata. During the 1830s and later, he mostly cultivated land and dug gum in the lower Waihou region and as well as cultivating at Te Aroha. 
 After living at Kaitawa before the Thames goldfield opened, nearby, in 1867, he moved to Te Aroha, where he would live continuously, warding off the ambitions of Ngati Haua. When the land court investigated the ownership of blocks of land in Hauraki, he sought to obtain as many interests as possible, not always successfully, and tried to get more than his fair share of both land and revenue. 
A devoted Anglican, he assisted the early missionaries to the Waihou region. Wanting peaceful relations with Pakeha, he assisted both the surveying and the settlement of the Aroha Block. When gold was discovered at Te Aroha in 1880, he assisted the prospectors, opened his land for mining and for a township, and invested in some claims, expecting and obtaining a good financial reward. He may have assisted in making the hot pools a public reserve, and certainly gave sections of land within the settlement for public and religious purposes. When he and his wife died a month apart, they were fondly remembered.

text: Mokena Hou and his wife Rina Mokena Hou had a distinguished whakapapa, but as nephew to Hou was subordinate to the latter’s son, Karauna Hou. He was born near the Te Aroha hot pools, and his future wife, Rina, who also had illustrious ancestors, including some Ngati Haua, was born in the same area. Both were affiliated to several hapu. After the Hauraki tribes fled from Ngapuhi in 1821, he would be present at the battle of Taumatawiwi in 1830 (though he did not fight) and participated in a later siege of the Ngati Haua pa at Matamata. During the 1830s and later, he mostly cultivated land and dug gum in the lower Waihou region and as well as cultivating at Te Aroha. 
 After living at Kaitawa before the Thames goldfield opened, nearby, in 1867, he moved to Te Aroha, where he would live continuously, warding off the ambitions of Ngati Haua. When the land court investigated the ownership of blocks of land in Hauraki, he sought to obtain as many interests as possible, not always successfully, and tried to get more than his fair share of both land and revenue. 
A devoted Anglican, he assisted the early missionaries to the Waihou region. Wanting peaceful relations with Pakeha, he assisted both the surveying and the settlement of the Aroha Block. When gold was discovered at Te Aroha in 1880, he assisted the prospectors, opened his land for mining and for a township, and invested in some claims, expecting and obtaining a good financial reward. He may have assisted in making the hot pools a public reserve, and certainly gave sections of land within the settlement for public and religious purposes. When he and his wife died a month apart, they were fondly remembered.

year: 2016