首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Kinetics and mechanism of proton transfer between disubstituted benzoic acids and carbinol base of crystal violet in chlorobenzene
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Kinetics and mechanism of proton transfer between disubstituted benzoic acids and carbinol base of crystal violet in chlorobenzene

机译:二取代苯甲酸与结晶紫的甲醇碱在氯苯中的质子转移动力学和机理

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摘要

An investigation on the detailed kinetics of proton transfer between a set of di- and monofluoro- and chloro(2,3-, 2,5-, 2,6-, 3,5-, 2-, and 3-) benzoic acids (HA) and Crystal Violet carbinol base in chlorobenzene favors a mechanism in terms of fast equilibrium between HA and D to form a H-bonded complex, D center dot center dot center dot HA, followed by rate-limiting proton transfer along the H-bond to form the colored ion pair DH(+)A(-) under the combined influence of monomer HA catalyst, nonreactive cyclic dimer (HA)(2) inhibitor, and hyperacidic homoconjugated complex H(HA(2)) catalyst through a transition state with nearly 60% charge separation.
机译:一组二氟和一氟氯和(2,3-,2,5-,2,6-,3,5-,2-和3-)苯甲酸之间质子转移的详细动力学研究(HA)和氯苯中的结晶紫甲醇碱有利于HA和D之间快速平衡形成H键结合的复合物的机制,D中心点中心点中心点HA,然后沿H-在单体HA催化剂,非反应性环状二聚体(HA)(2)抑制剂和高酸性均共轭复合物H(HA(2))催化剂的共同作用下,形成一个有色离子对DH(+)A(-)状态,电荷分离率接近60%。

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