Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (02): 255-260.doi: 10.3866/PKU.WHXB19920223

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An Algebraic Method to Estimate General Type of Phases of Structure Factors

Liu Yong-Sheng; Shu Ning-Cheng; Hu Ning-Hai   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1990-07-13 Revised:1991-04-12 Published:1992-04-15
  • Contact: Liu Yong-Sheng

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Abstract: The algebraic formulas of 1.5 and 2.5 rank are given for four space groups P2_1, Pn, Pnα2_1, P2_12_12_1. It is better that the results of applying them to estimating general type of phases for four correspondent crystal structures. And a method of transforming algebraic formulas from 1(2) rank into 1.5(2.5) rank is proposed.

Key words: Crystal structure determintion, Direct method, Estimating general type of phases