title: Platinum(II), palladium(II), nickel(II), and gold(I) complexes of the “electrospray-friendly” thiolate ligands 4-SC₅H₄N- and 4-SC₆H₄OMe-

authors: Decker, Corry

subjects: thiolate ligands

abstract: The series of platinum(II), palladium(II), and nickel(II) complexes [ML₂(dppe)] [M = Ni, Pd, Pt; L = 4-SC₅H₄N or 4-SC₆H₄OMe; dppe = Ph₂PCH₂CH₂PPh₂] containing pyridine-4-thiolate or 4-methoxybenzenethiolate ligands, together with the corresponding gold(I) complexes [AuL(PPh3)], were prepared and their electrospray ionization mass spectrometric behavior compared with that of the thiophenolate complexes [M(SPh)₂(dppe)] (M = Ni, Pd, Pt) and [Au(SPh)(PPh₃)]. While the pyridine-4-thiolate complexes yielded protonated ions of the type [M + H]+ and [M + 2H]²+ ions in the Ni, Pd, and Pt complexes, an [M + H]+ ion was only observed for the platinum derivative of 4-methoxybenzenethiolate. Other ions, which dominated the spectra of the thiophenolate complexes, were formed by thiolate loss and aggregate formation. The X-ray crystal structure of [Pt(SC₆H₄OMe-4)₂(dppe)] is also reported.

text: Platinum(II), palladium(II), nickel(II), and gold(I) complexes of the “electrospray-friendly” thiolate ligands 4-SC₅H₄N- and 4-SC₆H₄OMe- The series of platinum(II), palladium(II), and nickel(II) complexes [ML₂(dppe)] [M = Ni, Pd, Pt; L = 4-SC₅H₄N or 4-SC₆H₄OMe; dppe = Ph₂PCH₂CH₂PPh₂] containing pyridine-4-thiolate or 4-methoxybenzenethiolate ligands, together with the corresponding gold(I) complexes [AuL(PPh3)], were prepared and their electrospray ionization mass spectrometric behavior compared with that of the thiophenolate complexes [M(SPh)₂(dppe)] (M = Ni, Pd, Pt) and [Au(SPh)(PPh₃)]. While the pyridine-4-thiolate complexes yielded protonated ions of the type [M + H]+ and [M + 2H]²+ ions in the Ni, Pd, and Pt complexes, an [M + H]+ ion was only observed for the platinum derivative of 4-methoxybenzenethiolate. Other ions, which dominated the spectra of the thiophenolate complexes, were formed by thiolate loss and aggregate formation. The X-ray crystal structure of [Pt(SC₆H₄OMe-4)₂(dppe)] is also reported.

year: 2010-09

title: Cutting the hedge: Exporters' dynamic currency hedging behaviour

authors: Fabling, Richard

subjects: selective currency hedging

abstract: We use a dataset that includes all New Zealand merchandise export transactions to analyse exporters' dynamic currency hedging behaviour. We focus on whether exporters change their hedging behaviour (“selectively hedge”) when the exchange rate and/or forward points depart from historical norms. We find that hedging ratios for exporters' Australian dollar exposures vary systematically as the exchange rate departs from historical averages; this behaviour is more marked for larger relative to smaller exporters. Consistent with efficient markets theory, there is no evidence that selective hedging is a profitable strategy for exporters.

text: Cutting the hedge: Exporters' dynamic currency hedging behaviour We use a dataset that includes all New Zealand merchandise export transactions to analyse exporters' dynamic currency hedging behaviour. We focus on whether exporters change their hedging behaviour (“selectively hedge”) when the exchange rate and/or forward points depart from historical norms. We find that hedging ratios for exporters' Australian dollar exposures vary systematically as the exchange rate departs from historical averages; this behaviour is more marked for larger relative to smaller exporters. Consistent with efficient markets theory, there is no evidence that selective hedging is a profitable strategy for exporters.

year: 2010

title: Tangihanga: Through the eyes of young Maori women

authors: Wihongi, Hemaima

subjects: tangihanga

abstract: Tangihanga describes the Māori customary way of approaching death. The aim of this research is to explore the tangihanga experiences of young Māori women. The meanings they create, the learning they experience, and the social relationships they negotiate whilst at tangihanga are of interest. The contribution that tangihanga makes to mediating bereavement, grief and loss will also be investigated. This research seeks to broaden the understanding around the practices, beliefs and meanings that are associated with the processes of Tangihanga as experienced by young Māori women.
This study interviewed young Māori women between the ages of eighteen to twenty four. Face to face interviews were carried out with the use of a semi-structured interview schedule. The interviews provided access to the participant‟s experiences and understanding of tangihanga and the customary practices that are associated with it.
The findings from this study support the notion that the tangihanga is a fundamental event for Māori. The participants found tangi to be a place where their relationships within both their immediate and extended whānau were strengthened. This setting allowed the young women to express their grief in an open and supportive environment surrounded by their whānau. The tangi also provided a place of learning for the young women as they learned about the tikanga and kawa or customary practices in relation to tangihanga. This learning occurred in a number of ways; by observation, through participation and the receiving of instruction from older family members. Thus the tangi provided the opportunity for the transfer of cultural knowledge between generations. These findings suggest that the tangi plays an important role in young women‟s lives as it provides them with access to Māori communities and cultural learning. The challenge for us today is to ensure that these opportunities continue to occur for young Māori women.

text: Tangihanga: Through the eyes of young Maori women Tangihanga describes the Māori customary way of approaching death. The aim of this research is to explore the tangihanga experiences of young Māori women. The meanings they create, the learning they experience, and the social relationships they negotiate whilst at tangihanga are of interest. The contribution that tangihanga makes to mediating bereavement, grief and loss will also be investigated. This research seeks to broaden the understanding around the practices, beliefs and meanings that are associated with the processes of Tangihanga as experienced by young Māori women.
This study interviewed young Māori women between the ages of eighteen to twenty four. Face to face interviews were carried out with the use of a semi-structured interview schedule. The interviews provided access to the participant‟s experiences and understanding of tangihanga and the customary practices that are associated with it.
The findings from this study support the notion that the tangihanga is a fundamental event for Māori. The participants found tangi to be a place where their relationships within both their immediate and extended whānau were strengthened. This setting allowed the young women to express their grief in an open and supportive environment surrounded by their whānau. The tangi also provided a place of learning for the young women as they learned about the tikanga and kawa or customary practices in relation to tangihanga. This learning occurred in a number of ways; by observation, through participation and the receiving of instruction from older family members. Thus the tangi provided the opportunity for the transfer of cultural knowledge between generations. These findings suggest that the tangi plays an important role in young women‟s lives as it provides them with access to Māori communities and cultural learning. The challenge for us today is to ensure that these opportunities continue to occur for young Māori women.

year: 2013