CRYSTAL-STRUCTURE OF MESOGENIC MATERIAL - 2-(4'-CYANO PHENYL)-5-N-HEPTYL-1,3 DIOXANE

被引：0

作者：

BELLAD, SB

BABU, AM

SRIDHAR, MA

INDIRA, A

MADHAVA, MS

PRASAD, JS

机构：

[1] Department of Studies in Physics, University of Mysore, Manasagangotri

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1993年 / 208卷

关键词：

CRYSTAL STRUCTURE; 2-(4'-CYANO PHENYL)-5-N HEPTYL-1,3 DIOXANE;

D O I：

10.1524/zkri.1993.208.Part-1.43

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The crystalline form of 2-(4'-cyano phenyl)-5-n heptyl-1,3 dioxane C18NO2H25 is orthorhombic and is assigned to space group P2(1)2(1)2(1) with four molecules per unit cell. The cell parameters are a = 5.5450(2) angstrom, b = 7.7334(3) angstrom, c = 41.0765(2) angstrom. D(calc) = 1.082 Mg . m-3. The structure was refined to an R = 0.07 for 840 counter intensities. The molecule is linear. The packing of the molecules shows a strong layered arrangement. This mesogenic compound exhibits a smectic phase in the range 53-55-degrees-C during heating and 55-42-degrees-C during cooling.

引用

页码：43 / 48

页数：6