title: Preparation and the crystal and molecular structure of [Net₄][Ge{Co₂(CO)₇}{Co₂(CO)₆[HgCo(CO)₄]}]: an anion containing a mercury-bridged cobalt–cobalt bond

authors: Duffy, D. Neil

subjects: chemistry

abstract: The title compound has been isolated from the reaction of Gel4 with Na[Co(CO)₄] in the presence of Hg and has been characterised by X-ray analysis. Crystals are triclinic, a= 12.065(1), b= 17.334(2), c= 9.222(1)Å, α= 95.17(3), β= 82.72(3), γ= 96.95(3)°, space group P , and Z= 2. The structure has been solved by direct methods and refined to R= 0.049 for 3 136 reflections [I  5σ(I)]. The anion contains a common Ge atom bridging the Co–Co bonds both of a Co₂(CO)₇ unit and of a Co₂(CO)₆ unit which is also bridged by a HgCo(CO)₄ group.

text: Preparation and the crystal and molecular structure of [Net₄][Ge{Co₂(CO)₇}{Co₂(CO)₆[HgCo(CO)₄]}]: an anion containing a mercury-bridged cobalt–cobalt bond The title compound has been isolated from the reaction of Gel4 with Na[Co(CO)₄] in the presence of Hg and has been characterised by X-ray analysis. Crystals are triclinic, a= 12.065(1), b= 17.334(2), c= 9.222(1)Å, α= 95.17(3), β= 82.72(3), γ= 96.95(3)°, space group P , and Z= 2. The structure has been solved by direct methods and refined to R= 0.049 for 3 136 reflections [I  5σ(I)]. The anion contains a common Ge atom bridging the Co–Co bonds both of a Co₂(CO)₇ unit and of a Co₂(CO)₆ unit which is also bridged by a HgCo(CO)₄ group.

year: 1981

title: Editorial: Assessment and ICT, innovative practices and future possibilities

authors: Khoo, Elaine G.L.

subjects: ICT

abstract: The New Zealand Curriculum [NZC] document states that information and communication technology [ICT] and eLearning have considerable potential to support the teaching approaches recommended in the curriculum (Ministry of Education, 2007). In this special issue, we explore the potential for ICTs to support innovative assessment practices that complement effective teaching approaches. Such innovations can enrich the opportunities students have to demonstrate their developing understandings and knowledge, and foster a sense of responsibility for their own and group/class learning. Designed thoughtfully, they can also promote positive student attitudes and motivation towards learning in curriculum learning areas, and towards learning in general.

text: Editorial: Assessment and ICT, innovative practices and future possibilities The New Zealand Curriculum [NZC] document states that information and communication technology [ICT] and eLearning have considerable potential to support the teaching approaches recommended in the curriculum (Ministry of Education, 2007). In this special issue, we explore the potential for ICTs to support innovative assessment practices that complement effective teaching approaches. Such innovations can enrich the opportunities students have to demonstrate their developing understandings and knowledge, and foster a sense of responsibility for their own and group/class learning. Designed thoughtfully, they can also promote positive student attitudes and motivation towards learning in curriculum learning areas, and towards learning in general.

year: 2012

title: Environmental ethics in a New Zealand context

authors: Gunn, Alastair S.

subjects: environmental ethics

abstract: Environmental ethics has many strands and roots but there is increasing for a holistic approach. Such an approach, which is consistent with te ao Maori and tikanga Maori, is especially appropriate for New Zealand.

text: Environmental ethics in a New Zealand context Environmental ethics has many strands and roots but there is increasing for a holistic approach. Such an approach, which is consistent with te ao Maori and tikanga Maori, is especially appropriate for New Zealand.

year: 2007