title: Germanium hydride derivatives of transition metal carbonyls

authors: Christie, Judy A.

abstract: Compounds of the type Fe(CO)₄(GeR₃)₂ containing two different methylgermyl substituents have been prepared and characterised. The preparation was via the exchange reaction

Fe(CO)₄(GeR₃)₂ + [Mn(CO)₅]⁻ → [Fe(CO)₄(GeR₃)]⁻ + Mn(CO)₅(GeR₃)

[Fe(CO)₄(GeR₃)]⁻ + GeXR’₃ → Fe(CO)₄(GeR₃)(GeR’₃)


The compounds characterised were Fe(CO)₄(GeMeH₂) (GeH₃) Fe(CO)₄(GeMe₂H) (GeH₃), Fe(CO)₄ (GeMe₂H) (GeMeH₂), Fe(CO)₄(GeMe₃) (GeH₃) Fe(CO)₄(GeMe₃)(GeMeH₂) and Fe(CO)₄(GeMe₃)(GeMe₂H). Of these, the species Fe(CO)₄(GeMeH₂) (GeH₃) were characterised fully by infrared, proton nmr and mass spectroscopic studies.


The self-reaction 

2Fe(CO)₄(GeR₃)₂ → [Fe(CO)₄(GeR₂)]₂ + 2GeR₄

has also been examined in some detail. The methylgermane was eliminated in preference to GeH₄ and species of the type [Fe(CO)₄(GeH₃)]₂-GeR₂ were also identified in two cases. 

Halogenation of Fe(CO)₄(GeMeH₃) (GeH₃) and Fe(CO)₄(GeMe₂H) (GeH3) was followed by ¹H nmr studies. CCℓ₄ results in the substitution of Ge-H, while HCℓ cleaves Fe-Ge bonds. 

While Fe(CO)₄(GeMe₂H) (GeMeH₂), Fe(CO)₄(GeMe₃) (GeMeH₂) and Fe(CO)₄(GeMe₃) (GeMe₂H) have been prepared, spectroscopic identification of these species is rather tenuous as these samples were found always to be contaminated with either the symmetrically substituted species Fe(CO)₄(GeR₃)₂ and/or products from the self-reaction. 

Mn(CO)₅(GeR₃) species obtained in the above syntheses react with Co₂(CO)₈ to yield the species [Co₃ (CO)₉][Mn(CO)₅]Ge, [Co₂(CO)₇[Mn(CO)₅]GeMe and possibly [Co(CO)₄][Mn(CO)₅]GeMe₂. 

These species were characterised by their infrared and mass spectroscopic properties.

text: Germanium hydride derivatives of transition metal carbonyls Compounds of the type Fe(CO)₄(GeR₃)₂ containing two different methylgermyl substituents have been prepared and characterised. The preparation was via the exchange reaction

Fe(CO)₄(GeR₃)₂ + [Mn(CO)₅]⁻ → [Fe(CO)₄(GeR₃)]⁻ + Mn(CO)₅(GeR₃)

[Fe(CO)₄(GeR₃)]⁻ + GeXR’₃ → Fe(CO)₄(GeR₃)(GeR’₃)


The compounds characterised were Fe(CO)₄(GeMeH₂) (GeH₃) Fe(CO)₄(GeMe₂H) (GeH₃), Fe(CO)₄ (GeMe₂H) (GeMeH₂), Fe(CO)₄(GeMe₃) (GeH₃) Fe(CO)₄(GeMe₃)(GeMeH₂) and Fe(CO)₄(GeMe₃)(GeMe₂H). Of these, the species Fe(CO)₄(GeMeH₂) (GeH₃) were characterised fully by infrared, proton nmr and mass spectroscopic studies.


The self-reaction 

2Fe(CO)₄(GeR₃)₂ → [Fe(CO)₄(GeR₂)]₂ + 2GeR₄

has also been examined in some detail. The methylgermane was eliminated in preference to GeH₄ and species of the type [Fe(CO)₄(GeH₃)]₂-GeR₂ were also identified in two cases. 

Halogenation of Fe(CO)₄(GeMeH₃) (GeH₃) and Fe(CO)₄(GeMe₂H) (GeH3) was followed by ¹H nmr studies. CCℓ₄ results in the substitution of Ge-H, while HCℓ cleaves Fe-Ge bonds. 

While Fe(CO)₄(GeMe₂H) (GeMeH₂), Fe(CO)₄(GeMe₃) (GeMeH₂) and Fe(CO)₄(GeMe₃) (GeMe₂H) have been prepared, spectroscopic identification of these species is rather tenuous as these samples were found always to be contaminated with either the symmetrically substituted species Fe(CO)₄(GeR₃)₂ and/or products from the self-reaction. 

Mn(CO)₅(GeR₃) species obtained in the above syntheses react with Co₂(CO)₈ to yield the species [Co₃ (CO)₉][Mn(CO)₅]Ge, [Co₂(CO)₇[Mn(CO)₅]GeMe and possibly [Co(CO)₄][Mn(CO)₅]GeMe₂. 

These species were characterised by their infrared and mass spectroscopic properties.

year: 1981

title: The 2002 Banks Memorial Lecture: The flora of Mt Taranaki/Egmont: Understanding natural and garden experiments

authors: Clarkson, Bruce D.

subjects: Banks Memorial Lecture

abstract: In this, the 2002 Banks Memorial Lecture, I have two main aims. First, I will trace what has been discovered by botanists about the Mt Taranaki/Egmont flora since Joseph Banks scanned the mountain from the deck of Cook’s Endeavour in 1770. Second, I will discuss some of the results of my own garden and natural experiments, conducted in more recent times.

text: The 2002 Banks Memorial Lecture: The flora of Mt Taranaki/Egmont: Understanding natural and garden experiments In this, the 2002 Banks Memorial Lecture, I have two main aims. First, I will trace what has been discovered by botanists about the Mt Taranaki/Egmont flora since Joseph Banks scanned the mountain from the deck of Cook’s Endeavour in 1770. Second, I will discuss some of the results of my own garden and natural experiments, conducted in more recent times.

year: 2002

title: "More than bloods and obs" - Whānau Māori discuss health and hospital care

authors: Masters-Awatere, Bridgette

abstract: The impact of colonisation on Māori, the Indigenous people of Aotearoa New Zealand, combined with negative interactions with health workers, has contributed to insufficient resources and reduced access to primary health care. The purpose of this report is to share narratives of whānau Māori who have experienced a child’s hospital admission in order to highlight the common aspects (good and bad) of their stay at Waikato Hospital. The overarching aim of the Harti Hauora Tamariki (HHT) tool trial, within which this report is located, is to demonstrate the measurable impact of a developed screening tool (referred to throughout as the Harti tool). The Harti tool is a comprehensive approach to assessing and addressing holistic health needs for hospitalised children and their whānau. Our recruitment strategy gave priority to those whose kōrero would capture the realities of those living in situations of few resources. This report presents findings from conversational interviews with whānau of tamariki Māori admitted to the paediatrics ward of Waikato Hospital. We have purposefully presented the interview findings as narratives to allow the reader to engage in their own interpretation of commonalities of experiences. Each case study follows the same format: an overview, their hospital experience, and their description of everyday health. Across all the cases, similarities of experience emerge; financial stressors and strain; hunger and isolation; concern for their child(ren); and families that are actively engaged in caring for their children’s health and well-being. The Harti tool, when administered by a culturally competent Harti Research Assistant (Harti RA), appears to work to counteract previous alienating experiences. Being treated with dignity, respect and value had a positive impact. Participants spoke at length regarding how wonderful it was to be able to engage with the Harti RA’s as Māori and in a culturally appropriate way.

text: "More than bloods and obs" - Whānau Māori discuss health and hospital care The impact of colonisation on Māori, the Indigenous people of Aotearoa New Zealand, combined with negative interactions with health workers, has contributed to insufficient resources and reduced access to primary health care. The purpose of this report is to share narratives of whānau Māori who have experienced a child’s hospital admission in order to highlight the common aspects (good and bad) of their stay at Waikato Hospital. The overarching aim of the Harti Hauora Tamariki (HHT) tool trial, within which this report is located, is to demonstrate the measurable impact of a developed screening tool (referred to throughout as the Harti tool). The Harti tool is a comprehensive approach to assessing and addressing holistic health needs for hospitalised children and their whānau. Our recruitment strategy gave priority to those whose kōrero would capture the realities of those living in situations of few resources. This report presents findings from conversational interviews with whānau of tamariki Māori admitted to the paediatrics ward of Waikato Hospital. We have purposefully presented the interview findings as narratives to allow the reader to engage in their own interpretation of commonalities of experiences. Each case study follows the same format: an overview, their hospital experience, and their description of everyday health. Across all the cases, similarities of experience emerge; financial stressors and strain; hunger and isolation; concern for their child(ren); and families that are actively engaged in caring for their children’s health and well-being. The Harti tool, when administered by a culturally competent Harti Research Assistant (Harti RA), appears to work to counteract previous alienating experiences. Being treated with dignity, respect and value had a positive impact. Participants spoke at length regarding how wonderful it was to be able to engage with the Harti RA’s as Māori and in a culturally appropriate way.

year: 2019