title: A comparison of ruthenium-catalysed arene hydrogenation reactions in water and 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids

authors: Dyson, Paul J.

subjects: arenes

abstract: The hydrogenation of benzene and other arene substrates under biphasic conditions is evaluated using the catalyst precursor Ru(n₆-C₁₀H₁₄)(pta)Cl₂(pta=1,3,5-triaza-7-phosphaadamantane) immobilised in water and 1-alkyl-3-methylimidazolium
tetrafluoroborate ionic liquids. The effect that contamination of the 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids with chloride has on the hydrogenation reaction has also been examined. Of the immobilisation solvents tested the optimum solvent was found to be chloride-free 1- butyl-3-methylimidazolium tetrafluoroborate. Catalytic turnovers in this solvent are highest, and in general, turnovers for the hydrogenation reactions follow the trend: chloride-free 1-butyl-3-methylimidazolium tetrafluoroborate > water > chloridecontaminated 1-butyl-3-methylimidazolium tetrafluoroborate.

text: A comparison of ruthenium-catalysed arene hydrogenation reactions in water and 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids The hydrogenation of benzene and other arene substrates under biphasic conditions is evaluated using the catalyst precursor Ru(n₆-C₁₀H₁₄)(pta)Cl₂(pta=1,3,5-triaza-7-phosphaadamantane) immobilised in water and 1-alkyl-3-methylimidazolium
tetrafluoroborate ionic liquids. The effect that contamination of the 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids with chloride has on the hydrogenation reaction has also been examined. Of the immobilisation solvents tested the optimum solvent was found to be chloride-free 1- butyl-3-methylimidazolium tetrafluoroborate. Catalytic turnovers in this solvent are highest, and in general, turnovers for the hydrogenation reactions follow the trend: chloride-free 1-butyl-3-methylimidazolium tetrafluoroborate > water > chloridecontaminated 1-butyl-3-methylimidazolium tetrafluoroborate.

year: 2003

title: Why does NZ’s new energy plan sideline renewables and ignore progress made already?

authors: Barton, Barry

subjects: electricity

abstract: With the public concerned about energy prices and security of supply, the government’s recently released energy package naturally attracted a lot of attention.

The package was criticised for being unlikely to either bring down prices or increase construction for new generation. But it’s just as important we see how much the plan assumes fossil fuels are the only answer, and how little it connects with important reforms already underway.

text: Why does NZ’s new energy plan sideline renewables and ignore progress made already? With the public concerned about energy prices and security of supply, the government’s recently released energy package naturally attracted a lot of attention.

The package was criticised for being unlikely to either bring down prices or increase construction for new generation. But it’s just as important we see how much the plan assumes fossil fuels are the only answer, and how little it connects with important reforms already underway.

year: 2025

title: Moko – A Research Project

authors: Te Awekotuku, Ngahuia

subjects: Maori

abstract: Moko colours the lives, and the skins, of all the people involved in the making of this book “Mau Moko”, which began as the Marsden project, “Ta Moko – Culture, Body Modification, and the Psychology of Identity”, 2001-2005. We proposed to study the origins, significance, technology and practice of Ta Moko from the pre-contact period to contemporary times, and to explore how this important art form has become a dynamic and positive assertion of being Maori in our changing world.

text: Moko – A Research Project Moko colours the lives, and the skins, of all the people involved in the making of this book “Mau Moko”, which began as the Marsden project, “Ta Moko – Culture, Body Modification, and the Psychology of Identity”, 2001-2005. We proposed to study the origins, significance, technology and practice of Ta Moko from the pre-contact period to contemporary times, and to explore how this important art form has become a dynamic and positive assertion of being Maori in our changing world.

year: 2008