Octahedral metal carbonyls. 71. Kinetics and mechanism of benzene displacement from photogenerated (.eta.2-benzene)chromium pentacarbonyl

On the use of “fast kinetics” to determine the mechanism of ligand substitution at a solvated transition‐metal intermediate

“…Such behavior has been reported [23], although not in all cases where A and D ligand exchange are believed to be competing [24]. Equation (11) is normally used in practice to correct a DI plot for a particular ligand by finding the value of k a necessary to bring the intercept to (1/k 1 ) [23]. The obvious difficulty with the use of this equation is that one has to know k 1 prior to the analysis, which in general will not be the case.…”

“…Such behavior has been reported [23], although not in all cases where A and D ligand exchange are believed to be competing [24]. Equation (11) is normally used in practice to correct a DI plot for a particular ligand by finding the value of k a necessary to bring the intercept to (1/k 1 ) [23].…”

“…Dobson [23,24] has shown that in the case where the dependence of [solv] on [L ] is not treated explicitly, (i.e., k obs is the sum of the values of k obs given by Eqs. (3) and (4)), then one can produce a linearized DI plot via Eq.…”

A biphasic displacement of [60]fullerene from fac-(dihapto-[60]fullerene)(dihapto-1,10-phenanthroline) tricarbonyl molybdenum (0)

“…The role of the solvent on the ligand exchange reactions of metal carbonyl complexes have been reported extensively [33][34][35][36][37][38][39]. Aromatic solvents may interact with the substrate and intermediate species through an olefinic linkage [33][34][35] or a lone pair (in halogenated solvents) [36].…”

“…Aromatic solvents may interact with the substrate and intermediate species through an olefinic linkage [33][34][35] or a lone pair (in halogenated solvents) [36]. The coordinated solvent may undergo a ''chain walk'' isomerization to attain the most stable mode of coordination [33,34].…”