Participation of Hydroxylic Solvent Molecules
Participation of Hydroxylic Solvent Molecules
复制标题
羟基溶剂分子的参与
DOI：
10.1007/978-1-4899-3013-2_4
复制
发表时间：
1975
影响因子：
11.1
通讯作者：
D. Eustace
中科院分区：
文献类型：
--
作者：
E. Grunwald;D. Eustace
质子转移反应通常被描述为简单的双分子过程，其中质子直接从酸转移到碱。然而，随着用于测量快速反应速率的质子磁共振技术的发展，已经清楚的是，在羟基溶剂中的许多质子转移反应实际上在一个或两个溶剂分子的参与下进行。然后溶剂分子充当双功能催化剂，即既作为质子受体又作为质子供体。因此，在水分子的参与下，从酸HA到碱B的三分子质子转移如方程式1所示。
Proton transfer reactions are often depicted as simple bimolecular processes in which a proton is transferred directly from the acid to the base. However, with the development of proton magnetic resonance techniques for measuring the rates of fast reactions, it has become clear that many proton transfer reactions in hydroxylic solvents actually proceed with participation of one or two solvent molecules. The solvent molecule then acts as a bifunctional catalyst, that is, both as a proton acceptor and a proton donor. Thus, termolecular proton transfer from an acid HA to a base B with participation of a water molecule is shown in equation 1.