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Multiple complexation of CO and related ligands to a main-group element.
- Source :
-
Nature . 6/18/2015, Vol. 522 Issue 7556, p327-330. 4p. - Publication Year :
- 2015
-
Abstract
- The ability of an atom or molecular fragment to bind multiple carbon monoxide (CO) molecules to form multicarbonyl adducts is a fundamental trait of transition metals. Transition-metal carbonyl complexes are vital to industry, appear naturally in the active sites of a number of enzymes (such as hydrogenases), are promising therapeutic agents, and have even been observed in interstellar dust clouds. Despite the wealth of established transition-metal multicarbonyl complexes, no elements outside groups 4 to 12 of the periodic table have yet been shown to react directly with two or more CO units to form stable multicarbonyl adducts. Here we present the synthesis of a borylene dicarbonyl complex, the first multicarbonyl complex of a main-group element prepared using CO. The compound is additionally stable towards ambient air and moisture. The synthetic strategy used-liberation of a borylene ligand from a transition metal using donor ligands-is broadly applicable, leading to a number of unprecedented monovalent boron species with different Lewis basic groups. The similarity of these compounds to conventional transition-metal carbonyl complexes is demonstrated by photolytic liberation of CO and subsequent intramolecular carbon-carbon bond activation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00280836
- Volume :
- 522
- Issue :
- 7556
- Database :
- Academic Search Index
- Journal :
- Nature
- Publication Type :
- Academic Journal
- Accession number :
- 103278586
- Full Text :
- https://doi.org/10.1038/nature14489