|
International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_cell.reciprocal_length_a
Name:_cell.reciprocal_length_a
Alias:
_cell_reciprocal_length_a
Definition:
The reciprocal of the _cell.length_a.
The reciprocal-cell lengths are related to the real cell by:
recip-a = b*c*sin(alpha)/V
recip-b = c*a*sin(beta)/V
recip-c = a*b*sin(gamma)/V
where V is the cell volume.
Reference: Buerger, M. J. (1942). X-ray Crystallography, p. 360.
New York: John Wiley & Sons Inc.
Type: Real
Units: reciprocal_angstroms
The permitted range is 0.0 → infinity
Evaluation method:
_cell.reciprocal_length_a = Norm ( _cell.reciprocal_vector_a )
Category:
cell
