摘要
本文对晶胞正空间微观对称群的等数点系确立了矩阵表示:Xj=CjX_1l=RjX_1+Tj=与该空间群对应的倒易空间的等效点系与正空间的等效点系有关系:Hs=H_1Rs(s=1,2,…n.).倒易空间等效点系各点的结构因子绝对值相等:|F_(Hs)|=IF_(H1)|(s=1,2,…,n.);且各结构因子的相角有关系:α_(Hs)=α_(H1)-2πH_1T_s(s=1,2,…,n.).
In this paper the matrix expressions of equivalent points of microcosmic symmetry groups of crystal unit spaces are established. They are.(j=1, 2,…n). The equivalent points of space groups have to do with the equivalent points of the corresponding reciprocal space groups of the crystal space groups, that is to say, Hs=H_1R_s(s=1, 2,…n). The structural factors of the equivalent points of the reciprocal spaces are equal in absolute value'|F_Hs|=|F_H_1| (s = 1, 2,…n), and their phase angles have the following expression.:a_(HS)=a_(H1)- 2πH_1Ts (s =1, 2, …n).
关键词
晶体
倒易空间
空间群
等效点
space groups
equivalent points
reciprocal space
structural factors
