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Multiple complexation of CO and related ligands to a main group element

journal contribution
posted on 2023-06-08, 20:33 authored by Holger Braunschweig, Rian D Dewhurst, Florian Hupp, Marco Nutz, Krzysztof Radacki, Christopher W Tate, Alfredo VargasAlfredo Vargas, Qing Ye
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.

History

Publication status

  • Published

File Version

  • Published version

Journal

Nature

ISSN

0028-0836

Publisher

Nature Publishing Group

Issue

7556

Volume

522

Page range

327-330

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2015-06-22

First Compliant Deposit (FCD) Date

2021-03-09

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