Modelling catalytic turnover frequencies in ionic liquids: the determination of the bimolecular rate constant for solvent displacement from [(C6H6)Cr(CO)2Solv] in 1-n-butyl-3-methylimidazolium hexafluorophosphateElectronic supplementary information (ESI) available: synthesis of RTILs. See http://www.rsc.org/suppdata/cc/b3/b315781d/
作者:Konrad Swiderski、Andrew McLean、Charles M. Gordon、D. H. Vaughan
DOI:10.1039/b315781d
日期:——
The bimolecularrateconstant for solvent displacement, k(2), from [(C(6)H(6))Cr(CO)(2)Solv] by an incoming ligand has been determined in the room temperature ionic liquid, [bmim][PF(6)], and is compared to that for the same process in cyclohexane and dichloroethane.
Synthesis and Oxygen to Iron Methyl Migration Reaction of the Heterodinuclear Methoxycarbyne Complex Cp(CO)Fe(μ-COCH<sub>3</sub>)(μ-CO)Cr(CO)(η<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)
作者:Wei Luo、Raymond H. Fong、William H. Hersh
DOI:10.1021/om970417m
日期:1997.9.1
ΔG⧧(300 K) = 14.3 ± 1.8 kcal/mol in toluene-d8 and 15.2 ± 1.9 kcal/mol in CD2Cl2. Thermal decomposition of 7 provides the fourth example of oxygen to metal methylmigration from a methoxycarbyne complex. However, it is the firstexample in which a methoxycarbyne follows kinetics in which the rate constants are independent of the phosphine concentration, giving k = 8.1 ± 0.6 × 10-5 s-1 at 50 °C in C6D6