{"id":{"repo_id":"waikato-masters","oai_identifier":"oai:researchcommons.waikato.ac.nz:10289/17683"},"canonical_url":"https://search.dev.ndltd.org/etd/waikato-masters/oai:researchcommons.waikato.ac.nz:10289/17683","repository":{"repo_id":"waikato-masters","name":"University Waikato","base_url":"https://researchcommons.waikato.ac.nz/server/oai/request"},"display":{"title":"Germanium derivatives of cobalt carbonyl","abstract":"This work reports the reactions of NaCo (CO)₄ with GeCl₄, GeBr₄, MeGeCl₃, MeGeBr₃, and Me₂GeCl₂ and of Co₂(CO)₈ with germanium hydride derivatives, along with the isolation and characterisation of their products. Amongst these are the new compounds ClGe[Co(CO)₄]₃, Br₂Ge[Co(CO)₄]₂, BrGe[Co(CO)₄]₃, MeGeCl₂Co(CO)₄, MeGeBr₂Co(CO)₄, MeGeCl[Co(CO)₄]₂, MeGeBr[Co(CO)₄]₂, GeCo₄(CO)₁₄ and Ge[Co(CO)₄]₄. There have also been indications of MeGe[Co(CO)₄]₃ and some spectroscopic data have been collected for Me₂GeBrCo(CO)₄. The proposed configuration for GeCo₄(CO)₁₄ is a novel extension of the already-established germanium – bridged dicobalt carbonyl derivatives. The relationships between and interconversions of three tetracobalt derivatives of Germanium are discussed. A review of Group IVB - Cobalt carbonyl derivatives is presented along with a discussion of the mass and infrared spectra of compounds prepared in this work. Some of the chlorogermyl cobalt carbonyl derivatives prepared in this work have been reacted with NaMn(CO)₅. Under this competition situation, metal carbonyl exchange has been found to be favoured over alkali halide elimination. e.g. : ClGe[Co(CO)₄]₃ + 3NaMn(CO)₅ → ClGe[Mn(CO)₅]₃ + 3NaCo(CO)₄ However, this system is subject to substituent effects. Preliminary studies on the Germanium derivatives of Rhenium and Vanadium carbonyls are also reported.","abstract_html":"This work reports the reactions of NaCo (CO)₄ with GeCl₄, GeBr₄, MeGeCl₃, MeGeBr₃, and Me₂GeCl₂ and of Co₂(CO)₈ with germanium hydride derivatives, along with the isolation and characterisation of their products. Amongst these are the new compounds ClGe[Co(CO)₄]₃, Br₂Ge[Co(CO)₄]₂, BrGe[Co(CO)₄]₃, MeGeCl₂Co(CO)₄, MeGeBr₂Co(CO)₄, MeGeCl[Co(CO)₄]₂, MeGeBr[Co(CO)₄]₂, GeCo₄(CO)₁₄ and Ge[Co(CO)₄]₄. There have also been indications of MeGe[Co(CO)₄]₃ and some spectroscopic data have been collected for Me₂GeBrCo(CO)₄. The proposed configuration for GeCo₄(CO)₁₄ is a novel extension of the already-established germanium – bridged dicobalt carbonyl derivatives. The relationships between and interconversions of three tetracobalt derivatives of Germanium are discussed. A review of Group IVB - Cobalt carbonyl derivatives is presented along with a discussion of the mass and infrared spectra of compounds prepared in this work. Some of the chlorogermyl cobalt carbonyl derivatives prepared in this work have been reacted with NaMn(CO)₅. Under this competition situation, metal carbonyl exchange has been found to be favoured over alkali halide elimination. e.g. : ClGe[Co(CO)₄]₃ + 3NaMn(CO)₅ → ClGe[Mn(CO)₅]₃ + 3NaCo(CO)₄ However, this system is subject to substituent effects. Preliminary studies on the Germanium derivatives of Rhenium and Vanadium carbonyls are also reported.","abstract_has_math":false,"creators":["Gerlach, Robert F."],"institution":"The University of Waikato","degree_name":"Doctor of Philosophy (PhD)","degree_level":"Doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Mackay, Kenneth M."],"committee_chairs":[],"committee_members":[],"year":1978,"date_issued":"1978","date_published":"1978","updated_at":"2026-08-21T16:50:38Z","subjects":[],"languages":["en"],"rights":["All items in Research Commons are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated."],"rights_urls":["https://researchcommons.waikato.ac.nz/bitstreams/7362309e-6256-41ab-a017-9e34eea6eb6b/download"],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10289/17683","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"source_record":{"url":"https://researchcommons.waikato.ac.nz/server/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Aresearchcommons.waikato.ac.nz%3A10289%2F17683","prefix":"dim"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Mackay, Kenneth M."]},{"key":"dc:creator","label":"Author","values":["Gerlach, Robert F."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-10-01T01:45:15Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-10-01T01:45:15Z"]},{"key":"dc:date.issued","label":"Date","values":["1978"]},{"key":"dc:publisher","label":"Institution","values":["The University of Waikato"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["The University of Waikato"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://hdl.handle.net/10289/17683"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctoral"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["The University of Waikato"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["https://researchcommons.waikato.ac.nz/bitstreams/7362309e-6256-41ab-a017-9e34eea6eb6b/download","All items in Research Commons are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://researchcommons.waikato.ac.nz/bitstreams/6357349f-bc7a-4058-bf8d-4e24200686d2/download","https://hdl.handle.net/10289/17683"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This work reports the reactions of NaCo (CO)₄ with GeCl₄, GeBr₄, MeGeCl₃, MeGeBr₃, and Me₂GeCl₂ and of Co₂(CO)₈ with germanium hydride derivatives, along with the isolation and characterisation of their products. Amongst these are the new compounds ClGe[Co(CO)₄]₃, Br₂Ge[Co(CO)₄]₂, BrGe[Co(CO)₄]₃, MeGeCl₂Co(CO)₄, MeGeBr₂Co(CO)₄, MeGeCl[Co(CO)₄]₂, MeGeBr[Co(CO)₄]₂, GeCo₄(CO)₁₄ and Ge[Co(CO)₄]₄. There have also been indications of MeGe[Co(CO)₄]₃ and some spectroscopic data have been collected for Me₂GeBrCo(CO)₄. The proposed configuration for GeCo₄(CO)₁₄ is a novel extension of the already-established germanium – bridged dicobalt carbonyl derivatives. The relationships between and interconversions of three tetracobalt derivatives of Germanium are discussed. A review of Group IVB - Cobalt carbonyl derivatives is presented along with a discussion of the mass and infrared spectra of compounds prepared in this work. Some of the chlorogermyl cobalt carbonyl derivatives prepared in this work have been reacted with NaMn(CO)₅. Under this competition situation, metal carbonyl exchange has been found to be favoured over alkali halide elimination. e.g. : ClGe[Co(CO)₄]₃ + 3NaMn(CO)₅ → ClGe[Mn(CO)₅]₃ + 3NaCo(CO)₄ However, this system is subject to substituent effects. Preliminary studies on the Germanium derivatives of Rhenium and Vanadium carbonyls are also reported."]},{"key":"dc:format.checksum.md5","label":"Dc Format Checksum Md5","values":["909431ef7924c9df70b5ff0db1db377e","e14202ab27e47ddb00d33097327ba050","c151fc48a65fd89b15b91fbad1b4d0c3"]},{"key":"dc:title","label":"Title","values":["Germanium derivatives of cobalt carbonyl"]}]}],"canonical_facts":{"dc:contributor.advisor":["Mackay, Kenneth M."],"dc:creator":["Gerlach, Robert F."],"dc:date.accessioned":["2025-10-01T01:45:15Z"],"dc:date.available":["2025-10-01T01:45:15Z"],"dc:date.issued":["1978"],"dc:description.abstract":["This work reports the reactions of NaCo (CO)₄ with GeCl₄, GeBr₄, MeGeCl₃, MeGeBr₃, and Me₂GeCl₂ and of Co₂(CO)₈ with germanium hydride derivatives, along with the isolation and characterisation of their products. Amongst these are the new compounds ClGe[Co(CO)₄]₃, Br₂Ge[Co(CO)₄]₂, BrGe[Co(CO)₄]₃, MeGeCl₂Co(CO)₄, MeGeBr₂Co(CO)₄, MeGeCl[Co(CO)₄]₂, MeGeBr[Co(CO)₄]₂, GeCo₄(CO)₁₄ and Ge[Co(CO)₄]₄. There have also been indications of MeGe[Co(CO)₄]₃ and some spectroscopic data have been collected for Me₂GeBrCo(CO)₄. The proposed configuration for GeCo₄(CO)₁₄ is a novel extension of the already-established germanium – bridged dicobalt carbonyl derivatives. The relationships between and interconversions of three tetracobalt derivatives of Germanium are discussed. A review of Group IVB - Cobalt carbonyl derivatives is presented along with a discussion of the mass and infrared spectra of compounds prepared in this work. Some of the chlorogermyl cobalt carbonyl derivatives prepared in this work have been reacted with NaMn(CO)₅. Under this competition situation, metal carbonyl exchange has been found to be favoured over alkali halide elimination. e.g. : ClGe[Co(CO)₄]₃ + 3NaMn(CO)₅ → ClGe[Mn(CO)₅]₃ + 3NaCo(CO)₄ However, this system is subject to substituent effects. Preliminary studies on the Germanium derivatives of Rhenium and Vanadium carbonyls are also reported."],"dc:format.checksum.md5":["909431ef7924c9df70b5ff0db1db377e","e14202ab27e47ddb00d33097327ba050","c151fc48a65fd89b15b91fbad1b4d0c3"],"dc:identifier.uri":["https://researchcommons.waikato.ac.nz/bitstreams/6357349f-bc7a-4058-bf8d-4e24200686d2/download","https://hdl.handle.net/10289/17683"],"dc:language.iso":["en"],"dc:publisher":["The University of Waikato"],"dc:publisher.institution":["The University of Waikato"],"dc:relation.isreferencedby":["https://hdl.handle.net/10289/17683"],"dc:rights":["https://researchcommons.waikato.ac.nz/bitstreams/7362309e-6256-41ab-a017-9e34eea6eb6b/download","All items in Research Commons are provided for private study and research purposes and are protected by copyright with all rights reserved unless otherwise indicated."],"dc:title":["Germanium derivatives of cobalt carbonyl"],"dc:type":["Thesis"],"thesis:degree_level":["Doctoral"],"thesis:degree_name":["Doctor of Philosophy (PhD)"],"thesis:institution_name":["The University of Waikato"]},"updated_at":"2026-08-21T16:50:38Z"}