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Metal–Metal Distances at the Limit: A Coordination Compound with an Ultrashort Chromium–Chromium Bond
Author(s) -
Noor Awal,
Wagner Frank R.,
Kempe Rhett
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.200801160
Subject(s) - metal , chromium , bond order , chemistry , quadruple bond , bimetallic strip , bond length , chemical bond , crystallography , metallic bonding , bond strength , organic chemistry , crystal structure , adhesive , layer (electronics)
Shorter than ever : Reduction of chromium(II/III) chlorides stabilized by amidopyridinato ligands leads to a dichromium complex that has a Cr–Cr bond length of 1.75 Å. This bond is exceptionally short, even for bonding orders higher than four, and is at present the shortest reported metal–metal bond for a stable compound. The experimental results are supported by theoretical calculations.