The DIRDIF scaling procedures; Rescaling for structures showing superstructure effects Version 4.0

General Search Results--Full Record

Article 32 of 38

The DIRDIF scaling procedures; Rescaling for structures showing superstructure effects
Israel R, Smykalla C, deGelder R, Beurskens PT
ZEITSCHRIFT FUR KRISTALLOGRAPHIE 210: (12) 909-919 1995

Document type: Article

Language: English

Cited References: 26

Times Cited: 0

Abstract:
The DIRDIF program system for solving crystal structures using Patterson procedures and direct methods applied to difference-structure factors, uses a variety of X-ray intensity scaling procedures based on the formulae of Wilson (1942), and when part of the structure is known, Parthasarathy (1966), and Gould, Van den Hark and Beurskens (1975). Applications of these procedures to various heavy atom structures are discussed. A new scaling procedure is presented which is based on the relative frequency of calculated partial structure factors being larger than the observed structure factors on an absolute scale. This procedure is especially useful for structures with superstructure effects.

KeyWords Plus:
CRYSTAL-STRUCTURE

Addresses:
Israel R, CATHOLIC UNIV NIJMEGEN, MAT RES INST, CRYSTALLOG LAB, TOERNOOIVELD 1, 6525 ED NIJMEGEN, NETHERLANDS.

Publisher:
R OLDENBOURG VERLAG, MUNICH 80

IDS Number:
TL276

ISSN:
0044-2968

Article 32 of 38