Volume 2 Chapter 7 Numeric Sub-menu *YEAR

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*ZPRIME

Function

*ZPRIME is used to test for a specified Z'-value, ie. the number of formula units per asymmetric unit.

CSD Contents

Z' is defined as Z/m where

Thus There is considerable interest in studying possible conformational differences for structures having Z'>1 and this search keyword permits the identification of these structures.

Graphics QUEST3D Procedure

Select *ZPRIME from the NUMERIC sub-menu and respond to the standard numeric prompts.

Basic QUEST Procedure

Ex.

T1  *ZPRI  .EQ.  2

This will register hits for all entries having Z'=2.

Related Keywords

*ZVALUE, *DENC, *DENM, *DENX

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Volume 2 Chapter 7 Numeric Sub-menu *ZVALUE.