Year: 2014
Type: article
Abstract: A cobalt hydride has been proposed as an intermediate in many reactions of the Co(dmgBF2)2L2 system, but its observation has proven difficult. We have observed the UV-vis spectra of Co(dmgBF2)2L2 (1) in CH3CN under hydrogen pressures of up to 70 atm. A Co(I) compound (6a) with an exchangeable proton is eventually formed. We have determined the bond dissociation free energy and pK(a) of the new O-H bond in 6a to be 50.5 kcal/mol and 13.4, respectively, in CH3CN, matching previous reports.
DOI: 10.1021/ja508200g
Institutions: Columbia University, Brookhaven National Laboratory
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
Awards: G103063029, G1126863173, G1286251239, G1852020741, G222768804, CATALYTIC APPLICATIONS OF H ATOM TRANSFER FROM TRANSITION-METAL HYDRIDE COMPLEXES, G2988778103, G338944111, G365113682, CATALYTIC APPLICATIONS OF MONOAND DINUCLEAR COMPLEXES CONTAINING METAL CARBON SIGMA BONDS, G4020879550, G491774827, G498139845, G5292656900, G549834383, G5648016710, G803281476, G8507651203, G857543222, G969889393
OpenAlex ID: W2070366529