תקציר
The acetate-catalyzed heterolysis reaction of two (a-hydroxyalkyl)chromium(III) complexes, CrIII-CH2OH and CrIII-C(CH3)2OH, with three types of nonparticipating ligands (H2O)5Cr-R2+, irons-([15]aneN4)(H2O)Cr-R2+, and cis-(nta)(H2O)Cr-R-, has been studied as a function of acetate concentration, temperature, and pressure. The reported rate and activation parameters demonstrate that the catalytic effect results from a trans-labilization effect by coordinated acetate and involves the attack by a solvent water molecule on the metal-carbon bond. The positive volumes of activation support the operation of a dissociatively activated heterolysis mechanism, which is in line with the suggested labilization effect by coordinated acetate.
שפה מקורית | אנגלית |
---|---|
עמודים (מ-עד) | 3805-3809 |
מספר עמודים | 5 |
כתב עת | Inorganic Chemistry |
כרך | 31 |
מספר גיליון | 18 |
מזהי עצם דיגיטלי (DOIs) | |
סטטוס פרסום | פורסם - 1992 |
פורסם באופן חיצוני | כן |