Preparation and thermal properties of 4-alkoxy-4′-cyanobiphenyl esters of ferrocene dicarboxylic acid
作者:J. Bhatt、B.M. Fung、Kenneth M. Nicholas
DOI:10.1016/0022-328x(91)80055-o
日期:1991.8
1′-diesters 2a–e incorporating variable length alkoxycyanobiphenyl units have been prepared and their melting behavior has been examined. Whereas 2a, b, d (n = 3, 4, 8, respectively) display normal melting properties, 2c (n = 6) and 2e (n = 10) both exhibit polymorphism in the solid state and 2e has a smectic phase between 85 and 88°C.
一系列新的介晶二茂铁基-1,1'-二酯2a – e结合了可变长度的烷氧基氰基联苯单元,并已对其熔融行为进行了研究。而2a,b,d(分别为n = 3、4、8)显示出正常的熔融特性,而2c(n = 6)和2e(n = 10)都显示出固态多态性,而2e的近晶相在85之间和88°C。