Kinetics and Mechanism of Acid Hydrolysis of Bis(dicarboxylato)carbonatochromate(III) Complexes
作者:C. S. T. Sai、N. R. Anipindi、V. Subbiah、M. W. Pandit
DOI:10.1246/bcsj.63.3644
日期:1990.12
acid-catalysed aquation reactions of three complex ions of the general formula [Cr(XX)2(CO3)]3−, where XX=oxalate, malonate, or methylmalonate, by stopped-flow spectrophotometry in the acid range 0.1–2.0 M (M=mol dm−3) and 20–35°C at an ionic strength of 2 M. Only the ring-opening reaction of the carbonate is observed, k=2.12, 3.28, and 4.02 M−1 s−1 at 25°C respectively for oxalato, malonato, and methylmalonato
已通过停流分光光度法研究了通式 [Cr(XX)2(CO3)]3− 的三个复合离子的酸催化水合反应,其中 XX = 草酸、丙二酸或甲基丙二酸。酸范围 0.1-2.0 M (M=mol dm-3) 和 20-35°C,离子强度为 2 M。仅观察到碳酸盐的开环反应,k=2.12、3.28 和 4.02 M-对于草酸根、丙二酸根和甲基丙二酸根络合物,在 25°C 下分别为 1 s-1,因为随后的脱羧速度太快而无法测量。观察到的趋势可以用配位惰性配体的碱性来解释。