Synthesis of a carborane-substituted bis(phosphanido) cobaltate(i), ligand substitution, and unusual Pfragmentation
Chemical Science, ISSN: 2041-6539, Vol: 12, Issue: 33, Page: 11225-11235
2021
- 11Citations
- 12Captures
- 1Mentions
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- Citations11
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- 10
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- Readers12
- 12
- Mentions1
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Article Description
Oxidative addition of the P-P single bond of an ortho-carborane-derived 1,2-diphosphetane (1,2-C2(PMes)2B10H10) (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)2C2B10H10}(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 P4, the electron-rich bis(phosphanido) moiety abstracts a single phosphorus atom with formation of a new P3 chain, while the remaining three P atoms derived from P4 form an η3-coordinating cyclo-P3 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 P4 chain in its molecular structure.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85113818085&origin=inward; http://dx.doi.org/10.1039/d1sc02948g; http://www.ncbi.nlm.nih.gov/pubmed/34522320; https://xlink.rsc.org/?DOI=D1SC02948G; https://dx.doi.org/10.1039/d1sc02948g; https://pubs.rsc.org/en/content/articlelanding/2021/sc/d1sc02948g
Royal Society of Chemistry (RSC)
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