title: Synthesis and characterisation of isomeric cycloaurated complexes derived from the iminophosphorane Ph₃P=NC(O)Ph

authors: Kilpin, Kelly Joan

subjects: gold complexes

abstract: Using different organomercury substrates, two isomeric cycloaurated complexes derived from the stabilised iminophosphorane Ph₃P NC(O)Ph were prepared. Reaction of Ph₃P NC(O)Ph with PhCH₂Mn(CO)₅ gave the manganated precursor (CO)₄Mn(2-C₆H₄C(O)N PPh₃), metallated on the C(O)Ph substituent, which yielded the organomercury complex ClHg(2-C₆H₄C(O)N PPh₃) by reaction with HgCl₂ in methanol. Transmetallation of the mercurated derivative with Me₄N[AuCl₄] gave the cycloaurated iminophosphorane AuCl₂(2-C₆H₄C(O)N PPh₃) with an exo PPh₃ substituent. The endo isomer AuCl₂(2-C₆H₄Ph₂P NC(O)Ph) [aurated on a PPh₃ ring] was obtained by an independent reaction sequence, involving reaction of the diarylmercury precursor Hg(2-C₆H₄P( NC(O)Ph)Ph₂)₂ [prepared from the known compound Hg(2-C₆H₄PPh₂)₂ and PhC(O)N₃] with Me₄N[AuCl₄]. Both of the isomeric iminophosphorane derivatives were structurally characterised, together with the precursors (2-HgClC₆H₄)C(O)N PPh₃ and (CO)₄Mn(2-C₆H₄C(O)N PPh₃). The utility of ³¹P NMR spectroscopy in monitoring reaction chemistry in this system is described.

text: Synthesis and characterisation of isomeric cycloaurated complexes derived from the iminophosphorane Ph₃P=NC(O)Ph Using different organomercury substrates, two isomeric cycloaurated complexes derived from the stabilised iminophosphorane Ph₃P NC(O)Ph were prepared. Reaction of Ph₃P NC(O)Ph with PhCH₂Mn(CO)₅ gave the manganated precursor (CO)₄Mn(2-C₆H₄C(O)N PPh₃), metallated on the C(O)Ph substituent, which yielded the organomercury complex ClHg(2-C₆H₄C(O)N PPh₃) by reaction with HgCl₂ in methanol. Transmetallation of the mercurated derivative with Me₄N[AuCl₄] gave the cycloaurated iminophosphorane AuCl₂(2-C₆H₄C(O)N PPh₃) with an exo PPh₃ substituent. The endo isomer AuCl₂(2-C₆H₄Ph₂P NC(O)Ph) [aurated on a PPh₃ ring] was obtained by an independent reaction sequence, involving reaction of the diarylmercury precursor Hg(2-C₆H₄P( NC(O)Ph)Ph₂)₂ [prepared from the known compound Hg(2-C₆H₄PPh₂)₂ and PhC(O)N₃] with Me₄N[AuCl₄]. Both of the isomeric iminophosphorane derivatives were structurally characterised, together with the precursors (2-HgClC₆H₄)C(O)N PPh₃ and (CO)₄Mn(2-C₆H₄C(O)N PPh₃). The utility of ³¹P NMR spectroscopy in monitoring reaction chemistry in this system is described.

year: 2010

title: New public management and accounting in a Fiji telecommunications company

authors: Sharma, Umesh Prasad

subjects: Culture

abstract: The aim of this article is to investigate tension between the implementation of new public management and associated accounting technologies in the Fiji telecommunication sector and the indigenous Fijian culture and political structure. In doing so, the article contrasts the economic-based reforms of the telecommunications sector (from 1990), with the traditional social relations that were exercised post-independence (1970 onwards). This research aim is achieved by focusing on archival documents and interviews with those involved in Fiji telecommunications. We illustrate how the use of new public management concepts replaced traditional social relations with the disciplinary technologies of modern capitalism but were also altered as a result of these social relations. In the Fiji Telecommunications company, the cultural conflicts and political influences led to the new public management process being resisted and modified to reduce the tension between economic and social relations

text: New public management and accounting in a Fiji telecommunications company The aim of this article is to investigate tension between the implementation of new public management and associated accounting technologies in the Fiji telecommunication sector and the indigenous Fijian culture and political structure. In doing so, the article contrasts the economic-based reforms of the telecommunications sector (from 1990), with the traditional social relations that were exercised post-independence (1970 onwards). This research aim is achieved by focusing on archival documents and interviews with those involved in Fiji telecommunications. We illustrate how the use of new public management concepts replaced traditional social relations with the disciplinary technologies of modern capitalism but were also altered as a result of these social relations. In the Fiji Telecommunications company, the cultural conflicts and political influences led to the new public management process being resisted and modified to reduce the tension between economic and social relations

year: 2012

title: Developing an integrated ocean observing system for New Zealand

authors: O'Callaghan, J

subjects: Science & Technology

abstract: New Zealand (NZ) is an island nation with stewardship of an ocean twenty times larger than its land area. While the challenges facing NZ's ocean are similar to other maritime countries, no coherent national plan exists that meets the needs of scientists, stakeholders or kaitiakitanga (guardianship) of NZ's ocean in a changing climate. The NZ marine science community used the OceanObs'19 white paper to establish a framework and implementation plan for a collaborative NZ ocean observing system (NZ-OOS). Co-production of ocean knowledge with Māori will be embedded in this national strategy for growing a sustainable, blue economy for NZ. The strengths of an observing system for a relatively small nation come from direct connections between the science impetus through to users and stakeholders of an NZ-OOS. The community will leverage off existing ocean observations to optimize effort and resources in a system that has historically made limited investment in ocean observing. The goal of the community paper will be achieved by bringing together oceanographers, data scientists and marine stakeholders to develop an NZ-OOS that provides best knowledge and tools to the sectors of society that use or are influenced by the ocean.

text: Developing an integrated ocean observing system for New Zealand New Zealand (NZ) is an island nation with stewardship of an ocean twenty times larger than its land area. While the challenges facing NZ's ocean are similar to other maritime countries, no coherent national plan exists that meets the needs of scientists, stakeholders or kaitiakitanga (guardianship) of NZ's ocean in a changing climate. The NZ marine science community used the OceanObs'19 white paper to establish a framework and implementation plan for a collaborative NZ ocean observing system (NZ-OOS). Co-production of ocean knowledge with Māori will be embedded in this national strategy for growing a sustainable, blue economy for NZ. The strengths of an observing system for a relatively small nation come from direct connections between the science impetus through to users and stakeholders of an NZ-OOS. The community will leverage off existing ocean observations to optimize effort and resources in a system that has historically made limited investment in ocean observing. The goal of the community paper will be achieved by bringing together oceanographers, data scientists and marine stakeholders to develop an NZ-OOS that provides best knowledge and tools to the sectors of society that use or are influenced by the ocean.

year: 2019-03-26