title: Cluster Chemistry : XVII.Radical ion-initiated synthesis of ruthenium cluster carbonyls containing tertiary phosphines, phosphites, arsines, SbPh₃, or isocyanides

authors: Bruce, Michael I.

subjects: chemistry

abstract: The syntheses of over sixty known and new derivatives of Ru₃(CO)₁₂ and H₄Ru₄(CO)₁₂ by substitution reactions initiated by sodium diphenylketyl are described. The range of ligands studied includes isocyanides, tertiary phosphines and phosphites, tertiary arsines and SbPh₃. The reactions are characterised by high degrees of specificity and conversion: under mild conditions up to four ligands can be introduced. Comparisons with the corresponding thermally induced reactions are made in several cases. The reactions provide routes to mixed ligand derivatives of the cluster carbonyls, although account of relative Lewis base strengths of the ligands may have to be taken. Possible mechanisms of these reactions are discussed briefly, as are the IR ν (CO) spectra of the Ru₃ (CO)12-nLn complexes.

text: Cluster Chemistry : XVII.Radical ion-initiated synthesis of ruthenium cluster carbonyls containing tertiary phosphines, phosphites, arsines, SbPh₃, or isocyanides The syntheses of over sixty known and new derivatives of Ru₃(CO)₁₂ and H₄Ru₄(CO)₁₂ by substitution reactions initiated by sodium diphenylketyl are described. The range of ligands studied includes isocyanides, tertiary phosphines and phosphites, tertiary arsines and SbPh₃. The reactions are characterised by high degrees of specificity and conversion: under mild conditions up to four ligands can be introduced. Comparisons with the corresponding thermally induced reactions are made in several cases. The reactions provide routes to mixed ligand derivatives of the cluster carbonyls, although account of relative Lewis base strengths of the ligands may have to be taken. Possible mechanisms of these reactions are discussed briefly, as are the IR ν (CO) spectra of the Ru₃ (CO)12-nLn complexes.

year: 1983

title: Ecological and physical characteristics of the Te Awa O Katapaki Stream, Flagstaff, Waikato

authors: Hicks, Brendan J.

subjects: Te Awa O Katapaki Stream

abstract: 1. The fish, macroinvertebrates, aquatic vegetation, and water quality indicate that the Te Awa O Katapaki Stream is an unpolluted, pastureland stream that is typical of the Waikato region.
2. The stream has very high nutrient concentrations that probably result from the dairy farming upstream.
3. The fish fauna is dominated by the native shortfinned eels. The presence of the migratory common smelt indicates that swimming fish species also have free access to the stream from the Waikato River.
4. Fish of high conservation value, such as giant or banded kokopu (Galaxias argenteus or G. fasciatus) were absent, which is predictable given the warm, unshaded nature of the stream.
5. Fish and invertebrates would soon recolonise the restored stream following any work in the streambed.

text: Ecological and physical characteristics of the Te Awa O Katapaki Stream, Flagstaff, Waikato 1. The fish, macroinvertebrates, aquatic vegetation, and water quality indicate that the Te Awa O Katapaki Stream is an unpolluted, pastureland stream that is typical of the Waikato region.
2. The stream has very high nutrient concentrations that probably result from the dairy farming upstream.
3. The fish fauna is dominated by the native shortfinned eels. The presence of the migratory common smelt indicates that swimming fish species also have free access to the stream from the Waikato River.
4. Fish of high conservation value, such as giant or banded kokopu (Galaxias argenteus or G. fasciatus) were absent, which is predictable given the warm, unshaded nature of the stream.
5. Fish and invertebrates would soon recolonise the restored stream following any work in the streambed.

year: 2001

title: Te Arawa – Kaitiaki of the Rotorua Te Arawa Lakes

authors: Curtis, Sir Toby

abstract: I start this morning by reciting what we call a patere talking about Te Arawa's interest and relationship to the lakes and the water. Matawhaura is our mountain on Lake Rotoiti. When I went to school in Auckland we travelled on the New Zealand Road Service
transport bus, returning for the holidays along the Mamaku ranges. Those that came from Lake Rotoiti always looked out to see the lake and the mountain Matawhaura. As soon as we saw it a little touch of emotion welled up in our hearts. Mataatua people living in Whakatane felt the same thing when they travelled back home, descending the Rotoma hill, they looked out for Putauaki (Mt Edgecumbe). It gave them the same feeling of emotion.

text: Te Arawa – Kaitiaki of the Rotorua Te Arawa Lakes I start this morning by reciting what we call a patere talking about Te Arawa's interest and relationship to the lakes and the water. Matawhaura is our mountain on Lake Rotoiti. When I went to school in Auckland we travelled on the New Zealand Road Service
transport bus, returning for the holidays along the Mamaku ranges. Those that came from Lake Rotoiti always looked out to see the lake and the mountain Matawhaura. As soon as we saw it a little touch of emotion welled up in our hearts. Mataatua people living in Whakatane felt the same thing when they travelled back home, descending the Rotoma hill, they looked out for Putauaki (Mt Edgecumbe). It gave them the same feeling of emotion.

year: 2017