TRIPLET AND QUARTET RELATIONSHIPS AND THE POSITIVITY POSTULATE

被引:4
作者
ALTOMARE, A [1 ]
GIACOVAZZO, C [1 ]
GUAGLIARDI, A [1 ]
SILIQI, D [1 ]
机构
[1] TIRANA UNIV,FAC NAT SCI,DEPT INORGAN CHEM,TIRANE,ALBANIA
来源
ACTA CRYSTALLOGRAPHICA SECTION A | 1994年 / 50卷
关键词
D O I
10.1107/S0108767393009857
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Positivity and atomicity are traditionally considered as basic conditions for direct methods. While the role of atomicity is well understood, the theoretical and practical consequences for a direct-methods procedure generated by the violation of the positivity criterion are not quite clear. Triplet and quartet relationships are analyzed in connection with the positivity Postulate.
引用
收藏
页码:311 / 317
页数:7
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