Breaking the 1.80 Å Barrier of the CrCr Multiple Bond Between Cr II  Atoms | Zendy

Horvath Steven | Zendy; Gorelsky Serge I. | Zendy; Gambarotta Sandro | Zendy; Korobkov Ilia | Zendy

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Breaking the 1.80 Å Barrier of the CrCr Multiple Bond Between Cr II Atoms

Author(s) -

Horvath Steven,

Gorelsky Serge I.,

Gambarotta Sandro,

Korobkov Ilia

Publication year - 2008

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200804048

Subject(s) - agostic interaction , monomer , group (periodic table) , bridging (networking) , bond , chemistry , crystallography , computer science , organic chemistry , business , computer network , metal , polymer , finance

Short and sweet : By replacing one of the two guanidinate ligands in the monomeric complex [{(Me 3 Si) 2 NC(NCy) 2 } 2 Cr] with a methyl group, the dimeric complex [{(Me 3 Si) 2 NC(NCy) 2 CrMe} 2 ] (see picture) is generated. This species contains the shortest reported CrCr quadruple bond. The bonding of the methyl group indicates a Cr–HCH 2 Cr bridging agostic interaction which likely contributes to the short Cr–Cr contact.

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