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Remarkably Short Metal–Metal Bonds: A Lantern‐Type Quintuply Bonded Dichromium(I) Complex
Author(s) -
Tsai YiChou,
Hsu ChiaWei,
Yu JenShiang K.,
Lee GeneHsiang,
Wang Yu,
Kuo TingShen
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.200801286
Subject(s) - metal , crystallography , type (biology) , metallic bonding , chemistry , product (mathematics) , materials science , physics , mathematics , organic chemistry , geometry , geology , paleontology
The shortest metal–metal bond so far is found in complex anion 2 (CrCr 1.7397(9) Å), which is the one‐electron reduction product of thermally stable mixed‐valent complex 1 (see scheme). Experimental data unambiguously show that the electronic configuration of 1 is σ 2 π 4 δ 3 , and theoretical studies confirm the presence of a CrCr quintuple bond in 2 . Ar=2,6‐C 6 H 3 (CH 3 ) 2 .