title: Complex dependent regioselectivity in the nucleophilic substitution of fluorine of a coordinated tetrafluoropyridyl N-heterocycle carbene

authors: Pachal, Sam R.

subjects: Intramolecular nucleophilic attack

abstract: The tetrafluoropyridyl substituent of the N-heterocycle carbene ligand 1-(2,3,5,6-tetrafluoropyridyl)-3-benzylimidazolin-2-ylidene has been shown to undergo nucleophilic attack when coordinated to rhodium or silver. For the complex Cp *RhCl ₂{κC-(4-NC ₅F ₄)NC ₃H ₂N(CH ₂C ₆H ₅)} nucleophilic attack occurred at the less activated position, meta to the pyridyl ring nitrogen atom. In contrast, for the silver complex [Ag{κC-(4-NC ₅F ₅)NC ₅H ₅N(CH ₅C ₆H ₅)}] + nucleophilic attack occurred ortho to the pyridyl ring nitrogen atom.

text: Complex dependent regioselectivity in the nucleophilic substitution of fluorine of a coordinated tetrafluoropyridyl N-heterocycle carbene The tetrafluoropyridyl substituent of the N-heterocycle carbene ligand 1-(2,3,5,6-tetrafluoropyridyl)-3-benzylimidazolin-2-ylidene has been shown to undergo nucleophilic attack when coordinated to rhodium or silver. For the complex Cp *RhCl ₂{κC-(4-NC ₅F ₄)NC ₃H ₂N(CH ₂C ₆H ₅)} nucleophilic attack occurred at the less activated position, meta to the pyridyl ring nitrogen atom. In contrast, for the silver complex [Ag{κC-(4-NC ₅F ₅)NC ₅H ₅N(CH ₅C ₆H ₅)}] + nucleophilic attack occurred ortho to the pyridyl ring nitrogen atom.

year: 2013

title: Experiencing a mathematical problem-solving teaching approach: Opportunities to identify ambitious teaching practices

authors: Bailey, Judy

subjects: practice-based pre-service teacher education

abstract: Learning to teach is a complex matter, and many different models of pre-service teacher education have been used to support novice teachers in preparation for the classroom. More recently there have been calls for embedding practice at the centre of teachers’ professional preparation. Preparing novice teachers for ambitious teaching is demanding. A focus on core high-leverage practices such as teaching through problem-solving are suggested. In this study novice teachers engaged in practice-based teacher education to explore the learning and teaching of mathematics using a problem-solving approach. Findings suggest experiencing this approach is an important first step towards novice teachers learning about practices congruent with current reform expectations such as justifying mathematical reasoning, emphasising conceptual understanding, and catering for all learners. Novice teachers also began to envisage how ambitious mathematics pedagogies could be enacted in their future practice.

text: Experiencing a mathematical problem-solving teaching approach: Opportunities to identify ambitious teaching practices Learning to teach is a complex matter, and many different models of pre-service teacher education have been used to support novice teachers in preparation for the classroom. More recently there have been calls for embedding practice at the centre of teachers’ professional preparation. Preparing novice teachers for ambitious teaching is demanding. A focus on core high-leverage practices such as teaching through problem-solving are suggested. In this study novice teachers engaged in practice-based teacher education to explore the learning and teaching of mathematics using a problem-solving approach. Findings suggest experiencing this approach is an important first step towards novice teachers learning about practices congruent with current reform expectations such as justifying mathematical reasoning, emphasising conceptual understanding, and catering for all learners. Novice teachers also began to envisage how ambitious mathematics pedagogies could be enacted in their future practice.

year: 2015

title: Ki te kapu o taku ringa - In the palm of my hand [Photography exhibition at Gallagher Academy of Performing Arts]

authors: Hill, Rodrigo

subjects: Mātauranga Māori

abstract: (Exhibition catalogue)
The title Ki te kapu o taku ringa is taken from a line of
‘Maioha mō Waikato’ by Kīngi Tāwhiao. Ejected from their
homelands he and his Waikato brethren took refuge with
their Maniapoto relations in Te Nehenehenui. The maioha
was composed expressing Kīngi Tāwhiao’s love for his
homelands, and his solastalgic holding fast to those lands
‘... in the palm of his hand.’ The words from the song-poem
were used as guide to our research and photography practice.

text: Ki te kapu o taku ringa - In the palm of my hand [Photography exhibition at Gallagher Academy of Performing Arts] (Exhibition catalogue)
The title Ki te kapu o taku ringa is taken from a line of
‘Maioha mō Waikato’ by Kīngi Tāwhiao. Ejected from their
homelands he and his Waikato brethren took refuge with
their Maniapoto relations in Te Nehenehenui. The maioha
was composed expressing Kīngi Tāwhiao’s love for his
homelands, and his solastalgic holding fast to those lands
‘... in the palm of his hand.’ The words from the song-poem
were used as guide to our research and photography practice.

year: 2025