Braunschweig, Holger, Dewhurst, Rian D, Hupp, Florian, Nutz, Marco, Radacki, Krzysztof, Tate, Christopher W, Vargas, Alfredo and Ye, Qing (2015) Multiple complexation of CO and related ligands to a main group element. Nature, 522. pp. 327-330. ISSN 0028-0836

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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 clouds2. Despite the wealth of established transition-metal multicarbonyl complexes3, 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.

Item Type:	Article
Schools and Departments:	School of Life Sciences > Chemistry
Subjects:	Q Science > QD Chemistry
Depositing User:	Alfredo Vargas
Date Deposited:	22 Jun 2015 06:32
Last Modified:	22 Jun 2015 06:32
URI:	http://srodev.sussex.ac.uk/id/eprint/53701

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