首页> 外文期刊>Molecular Crystals and Liquid Crystals Science and Technology, Section A. Molecular Crystals and Liquid Crystals >A Simulated Annealing Approach for Crystal Structure Solution from Powder Diffraction Data
【24h】

A Simulated Annealing Approach for Crystal Structure Solution from Powder Diffraction Data

机译:基于粉末衍射数据的晶体结构求解的模拟退火方法

获取原文
获取原文并翻译 | 示例
           

摘要

We discuss fundamentals and applications of the program "Powder Solve" that has been developed to solve crystal structures directly from powder diffraction data. The program uses a combination of simulated annealing and rigid-body Rietveld refinement techniques to find the trial structure giving maximal agreement between calculated and experimental powder diffraction data (assessed using the profile R-factor R_(wp)). Two examples are highlighted to demonstrate the application of Powder Solve for molecular crystals defined by up to 18 variable degrees of freedom.
机译:我们将讨论程序“ Powder Solve”的基础和应用,该程序已经开发出来,可以直接从粉末衍射数据中解析晶体结构。该程序结合了模拟退火和刚体Rietveld精修技术,找到了试验结构,该结构在计算出的粉末衍射数据和实验粉末衍射数据之间达到了最大的一致性(使用R系数R_(wp)进行评估)。突出显示了两个示例,以演示粉末解决方案在多达18个可变自由度定义的分子晶体中的应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号