Hydrogen bonding and proton transfer in hydrido-bis-phenolate complexes in acetone
作者:Zenon Pawlak、Bogusław Nowak、Malcolm F. Fox
DOI:10.1039/f19827802157
日期:——
with proton transfer have been determined in acetone at 298 K. Tetra-alkylammonium phenolates were titrated with a variety of phenols to given homocomplexes and heterocomplexes. Potentiometric data give the overall equilibria constants, K0, proton-transfer constants, KPT and formation constants, Kf. Two types of heterocomplexes were studied. When ArO– is a weaker base than Ar′O–, the complexation occurs
的同共轭,(ARO)2 ħ - ,和heteroconjugation,Ar'O - ⋯HOAR,(其中Ar是芳族的)与质子转移已经在丙酮在298K四烷基酚确定与各种酚类到滴定给定同质复合体和异质复合体。电位数据提供了总体平衡常数K 0,质子转移常数K PT和形成常数K f。研究了两种类型的杂合物。当ArO –是弱于Ar'O –的碱时,络合发生而没有质子转移,这由低K 0所证实。反应的值。当ArO –是比Ar'O –更强的碱时,整体平衡常数K 0很大,因为氢键的平衡质子转移常数(K PT)和平衡形成常数(K f)都包括在其中。K 0 = K f K PT的测量。