Three anhydrous forms and a dihydrate form of quifenadine hydrochloride: a structural study of the thermodynamic stability and dehydration mechanism
作者:Artis Kons、Ligita Rutkovska、Agris Bērziņš、Raitis Bobrovs、Andris Actiņš
DOI:10.1039/c5ce00426h
日期:——
(1-azabicyclo[2.2.2]oct-8-yl-diphenyl-methanol) hydrochloride are presented, and crystal structure information is used to explain and rationalize the relative stability of polymorphs and observed phase transformations. The dehydration mechanism of the hydrate is provided by interpreting the results obtained in studies of crystal structures, dehydration kinetics and thermal analysis. Structural analysis is used
介绍了二水合物(DH)的晶体结构和奎非那定(1-氮杂双环[2.2.2] oct-8-基-二苯甲醇)的三种无水形式(A,B和C),并使用了晶体结构信息来分析解释并合理化多晶型物的相对稳定性和观察到的相变。通过解释在晶体结构,脱水动力学和热分析研究中获得的结果,提供了水合物的脱水机理。结构分析用于解释观察到的无水相和水合物的相对稳定性。晶体结构已由单晶(DH型)或粉末衍射数据(A,B和C型)确定。所有三种多晶型物均由相似的氢键四聚体组成,