4，4′－二甲基－2，2′－联吡啶的晶体结构

CRYSTAL STRUCTURE OF 4,4'-DIMETHYL-2,2-BIPYRIDINE

标题化合物的相对分子质量Ｍｒ＝１８４．２４，属正交晶系，Ｐｂｃａ空间群，ａ＝１．２０３３（５）ｎｍ，ｂ＝１．０７８３（３）ｎｍ，ｃ＝０．７６７７（４）ｎｍ。通过元素分析和晶体结构的测定，确定了化合物的组成及分子构型。

The title compound crystallizes in orthogonal system with space group Pbca,a= 1.203 35(5),b=1.078 3(3),c=0.767 7(4)nm. The results of X-ray analysis show that themolecule is in trans-configuration.