Abstract
We have discovered a series of novel pentacarbonylchromium derivatives of bismuth from the reactions of NaBiO3 with [Cr(CO)6] in KOH/MeOH solutions. When the reaction was carried out at room temperature, the highly charged [Bi{Cr(CO)5}4]3- (1) was obtained, whose structure was shown by X-ray analysis to possess a central bismuth atom tetrahedrally coordinated to four [Cr(CO)5] groups. As the reaction was heated at 80°C, the methyl-substituted complex [MeBi{Cr(CO)5}3]2-(2) was obtained, presumably via the C-O activation of MeOH. Further reactions of 1 with CH2Cl2 or CH≡CCH2Br form the halo-substituted complexes [XBi{Cr(CO)5}3]2-(X = Cl, 3; Br, 4), respectively. On the other hand, the reactions of 1 with RI (R = Me, Et) led to the formation of the alkyl-substituted complexes [RBi{Cr(CO)5}3]2-(R = Me, 2; Et). The formation of complexes 1-4 is discussed, presumably via the intermediate bismuthinidene [Bi{Cr(CO)5}3]- or the trianion [Bi{Cr(CO)5}3]3-.
Original language | English |
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Pages (from-to) | 4522-4527 |
Number of pages | 6 |
Journal | Chemistry - A European Journal |
Volume | 8 |
Issue number | 19 |
DOIs | |
Publication status | Published - 2002 Oct 4 |
Keywords
- Bismuth
- C-O activation
- Carbonyl ligands
- Chromium
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry
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CCDC 181785: Experimental Crystal Structure Determination
Shieh, M. (Creator), Cherng, J. (Creator), Lai, Y. (Creator), Ueng, C. (Creator), Peng, S. (Creator) & Liu, Y. (Creator), Cambridge Crystallographic Data Centre, 2003
DOI: 10.5517/cc6351h, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc6351h&sid=DataCite
Dataset
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CCDC 181786: Experimental Crystal Structure Determination
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DOI: 10.5517/cc6352j, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc6352j&sid=DataCite
Dataset
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CCDC 172342: Experimental Crystal Structure Determination
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DOI: 10.5517/cc5sbfp, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc5sbfp&sid=DataCite
Dataset