Solving crystal structures from powder data. V. Located molecular fragment and powder-pattern decomposition

被引:58
作者
Altomare, A [1 ]
Giacovazzo, C [1 ]
Guagliardi, A [1 ]
Moliterni, AGG [1 ]
Rizzi, R [1 ]
机构
[1] Univ Bari, Ist Ricerca Sviluppo Metodol Cristallog, CNR, Dipartimento Geomineral, I-70125 Bari, Italy
关键词
D O I
10.1107/S0021889899007165
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In direct procedures for crystal structure solution from powder data, information on the location and orientation of a molecular fragment may readily become available. Such information may be used retrospectively to improve the powder-pattern decomposition, with favourable effects on the phasing process. A method is described by which accurate estimation of a large number of structure-factor moduli is possible by exploiting the prior partial structural information.
引用
收藏
页码:963 / 967
页数:5
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