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Novel Binuclear Cobalt Dioxygen Complex—A Step on the Path to Dioxygen Activation
Author(s) -
Reinaud Olivia M.,
Yap Glenn P. A.,
Rheingold Arnold L.,
Theopold Klaus H.
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199520511
Subject(s) - transition metal dioxygen complex , cobalt , chemistry , dimer , monomer , isopropyl , polymer chemistry , ring (chemistry) , boron , stereochemistry , medicinal chemistry , polymer , inorganic chemistry , organic chemistry
A six‐membered Co 2 O 4 ring in a chair conformation is featured in the diamagnetic dimer 2 , which is in equilibrium with its Co II monomer 1 (Δ H = ‐14.5(5) kcalmol −1 and Δ S = ‐60(3) cal (K −1 mol −1 ). The dimerization of 1 and loss of O 2 from 2 are steps en route to dioxygen activation. Tp′ = hydrotris(3‐isopropyl‐5‐methylpyrazolyl)borate).