Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes
Application of halide abstraction chemistry to asymmetric haloboryl complexes (η5-C5-Me5)Fe(CO) 2B(ERn)X leads to the first synthetic route to cationic multiply bonded group 13 diyl species, [(η5-C5Me 5)Fe(CO)2B(ERn]+. The roles of steric bulk and π electron release within the ERn substituent in gen...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1797053789049454592 |
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| author | Coombs, D Aldridge, S Rossin, A Jones, C Willock, D |
| author_facet | Coombs, D Aldridge, S Rossin, A Jones, C Willock, D |
| author_sort | Coombs, D |
| collection | OXFORD |
| description | Application of halide abstraction chemistry to asymmetric haloboryl complexes (η5-C5-Me5)Fe(CO) 2B(ERn)X leads to the first synthetic route to cationic multiply bonded group 13 diyl species, [(η5-C5Me 5)Fe(CO)2B(ERn]+. The roles of steric bulk and π electron release within the ERn substituent in generating tractable borylene complexes have been probed, as has the nature of the counterion. A combination of spectroscopic, structural, and computational techniques leads to the conclusion that the bonding in complexes such as [η5-C5Me5)Fe-(CO)2B(Mes)] + is best described as an Fe=B double bond composed of B→Fe σ donor and Fe→B π back-bonding components. An extended study of the fundamental reactivity of cationic borylene systems reveals that this is dominated not only by nucleophilic addition at boron but also by iron-centered substitution chemistry leading to overall displacement of the borylene ligand. |
| first_indexed | 2024-03-06T18:48:29Z |
| format | Journal article |
| id | oxford-uuid:0f5b8689-375c-4467-8774-8ddffdc5cff6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:48:29Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:0f5b8689-375c-4467-8774-8ddffdc5cff62022-03-26T09:50:47ZFe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0f5b8689-375c-4467-8774-8ddffdc5cff6EnglishSymplectic Elements at Oxford2004Coombs, DAldridge, SRossin, AJones, CWillock, DApplication of halide abstraction chemistry to asymmetric haloboryl complexes (η5-C5-Me5)Fe(CO) 2B(ERn)X leads to the first synthetic route to cationic multiply bonded group 13 diyl species, [(η5-C5Me 5)Fe(CO)2B(ERn]+. The roles of steric bulk and π electron release within the ERn substituent in generating tractable borylene complexes have been probed, as has the nature of the counterion. A combination of spectroscopic, structural, and computational techniques leads to the conclusion that the bonding in complexes such as [η5-C5Me5)Fe-(CO)2B(Mes)] + is best described as an Fe=B double bond composed of B→Fe σ donor and Fe→B π back-bonding components. An extended study of the fundamental reactivity of cationic borylene systems reveals that this is dominated not only by nucleophilic addition at boron but also by iron-centered substitution chemistry leading to overall displacement of the borylene ligand. |
| spellingShingle | Coombs, D Aldridge, S Rossin, A Jones, C Willock, D Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title | Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title_full | Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title_fullStr | Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title_full_unstemmed | Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title_short | Fe=B double bonds: Synthetic, structural, and reaction chemistry of cationic terminal borylene complexes |
| title_sort | fe b double bonds synthetic structural and reaction chemistry of cationic terminal borylene complexes |
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