Coburger, Peter and Leitl, Julia and Scott, Daniel J. and Hierlmeier, Gabriele and Shenderovich, Ilya G. and Hey-Hawkins, Evamarie and Wolf, Robert (2021) Synthesis of a carborane-substituted bis(phosphanido) cobaltate(i), ligand substitution, and unusual P-4 fragmentation. CHEMICAL SCIENCE, 12 (33). pp. 11225-11235. ISSN 2041-6520, 2041-6539
Full text not available from this repository. (Request a copy)Abstract
Oxidative addition of the P-P single bond of an ortho-carborane-derived 1,2-diphosphetane (1,2-C-2(PMes)(2)B10H10) (Mes = 2,4,6-Me3C6H2) to cobalt(-i) and nickel(0) sources affords the first heteroleptic complexes of a carborane-bridged bis(phosphanido) ligand. The complexes also incorporate labile ligands suitable for further functionalisation. Thus, the cobalt(i) complex [K([18]crown-6)][Co{1,2-(PMes)(2)C2B10H10}(cod)] (cod = 1,5-cyclooctadiene) bearing a labile cyclooctadiene ligand undergoes facile ligand exchange reactions with isonitriles and tert-butyl phosphaalkyne with retention of the bis(phosphanido) ligand. However, in the reaction with one equivalent of P-4, the electron-rich bis(phosphanido) moiety abstracts a single phosphorus atom with formation of a new P-3 chain, while the remaining three P atoms derived from P-4 form an eta(3)-coordinating cyclo-P-3 ligand. In contrast, when the same reaction is performed with two equivalents of the cobalt(i) complex, a dinuclear product is formed which features an unusual P-4 chain in its molecular structure.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RUTHENIUM PHOSPHIDO COMPLEXES; METAL-COMPLEXES; WHITE PHOSPHORUS; REACTIVITY; BOND; ACTIVATION; 4-COORDINATE; MECHANISMS; CHARGE; BULKY |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Arbeitskreis Prof. Dr. Robert Wolf |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2022 10:37 |
| Last Modified: | 17 Aug 2022 10:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46576 |
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