Synthesis and characterization of a bimetallic boratabenzene cobalt complex
Reaction of 1,4-(BBr 2) 2C 6H 4 with cobaltocene gives a bimetallic cobalt complex with cyclopentadienyl and boratabenzene ligands. Oxidation allows the dicationic dicobalt(III) complex to be isolated; the bis(hexafluorophosphate) salt has been structurally characterized. Variable-temperature magnet...
| Автори: | , , , , |
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| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
2004
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| _version_ | 1826296774872006656 |
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| author | Hascall, T Beck, V Barlow, S Cowley, A O'Hare, D |
| author_facet | Hascall, T Beck, V Barlow, S Cowley, A O'Hare, D |
| author_sort | Hascall, T |
| collection | OXFORD |
| description | Reaction of 1,4-(BBr 2) 2C 6H 4 with cobaltocene gives a bimetallic cobalt complex with cyclopentadienyl and boratabenzene ligands. Oxidation allows the dicationic dicobalt(III) complex to be isolated; the bis(hexafluorophosphate) salt has been structurally characterized. Variable-temperature magnetic susceptibility measurements on the neutral dicobalt(II) complex showed substantial deviation from the Curie -Weiss law; a fit to the Bleaney-Bowers equation for a singlet ground state and a triplet excited state gave an exchange interaction of J = ca. -28 cm -1. Electrochemical studies, as well as near-infrared data on the mixed-valence species, suggest that the interaction between the metal centers is weak. |
| first_indexed | 2024-03-07T04:21:32Z |
| format | Journal article |
| id | oxford-uuid:cb3069a8-bcf1-469c-921c-6d1c37db87b1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:21:32Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:cb3069a8-bcf1-469c-921c-6d1c37db87b12022-03-27T07:12:55ZSynthesis and characterization of a bimetallic boratabenzene cobalt complexJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cb3069a8-bcf1-469c-921c-6d1c37db87b1EnglishSymplectic Elements at Oxford2004Hascall, TBeck, VBarlow, SCowley, AO'Hare, DReaction of 1,4-(BBr 2) 2C 6H 4 with cobaltocene gives a bimetallic cobalt complex with cyclopentadienyl and boratabenzene ligands. Oxidation allows the dicationic dicobalt(III) complex to be isolated; the bis(hexafluorophosphate) salt has been structurally characterized. Variable-temperature magnetic susceptibility measurements on the neutral dicobalt(II) complex showed substantial deviation from the Curie -Weiss law; a fit to the Bleaney-Bowers equation for a singlet ground state and a triplet excited state gave an exchange interaction of J = ca. -28 cm -1. Electrochemical studies, as well as near-infrared data on the mixed-valence species, suggest that the interaction between the metal centers is weak. |
| spellingShingle | Hascall, T Beck, V Barlow, S Cowley, A O'Hare, D Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title | Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title_full | Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title_fullStr | Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title_full_unstemmed | Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title_short | Synthesis and characterization of a bimetallic boratabenzene cobalt complex |
| title_sort | synthesis and characterization of a bimetallic boratabenzene cobalt complex |
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