Estimating the (CO)5Cr–(η2-benzene) bond dissociation enthalpy: reaction of the (CO)5Cr(η2-benzene) complex with a series of (CH3)nTHF (n = 0, 1, 2, and 4) ligands
作者:Ashfaq A. Bengali、Trent F. Stumbaugh
DOI:10.1039/b210575f
日期:2003.1.29
The displacement of the benzene ligand from the photolytically generated (CO)5Cr(η2-benzene) complex by THF and a series of methyl substituted (CH3)nTHF (n = 1, 2, and 4) ligands was studied using the technique of laser flash photolysis. The data suggest that two independent pathways (D and Id) contribute to the overall displacement of the benzene solvent from the Cr center. The contribution of the
Metal carbonyl photochemistry. Part 2. Photochemistry of hexacarbonyls in glasses containing oxygen donors; the species [M(CO)<sub>5</sub>(mthf)](M = Cr, Mo, W, or V<sup>–I</sup>), cis-[M(CO)<sub>4</sub>(mthf)<sub>2</sub>], and fac-[M(CO)<sub>3</sub>(mthf)<sub>3</sub>](M = Cr, Mo, or W)
作者:John David Black、Michael J. Boylan、Paul S. Braterman、Alistair Fullarton
DOI:10.1039/dt9800001651
日期:——
The title species have been prepared by photolysis of [M(CO)6] in mthf glass at 77 K, and (for M = Mo or W) in doped hydrocarbon glasses in which there is evidence for photoconversion of Mo(CO)5 into [Mo(CO)5(mthf)]}. The compounds [Mo(CO)5(CH3COCH3)], [Mo(CO)5(OCHCH3)], and [Mo(CO)5(HOR)] have also been characterised at low temperature.
Reexamination of the photochemical oxidative decarbonylation of Cr(CO)6 by ortho-quinones: Low-temperature photolysis of Cr(CO)6 with ortho- and para-quinone isomers