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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
_refln.d_spacing
Name:_refln.d_spacing
Alias:
_refln_d_spacing
Definition:
The distance in angstroms between lattice planes in the crystal
with the indices _refln.hkl for this reflection.
Type: Real
Units: angstroms
The permitted range is 0.0 → infinity
Evaluation method:
_refln.d_spacing = 1 / (2 * _refln.sin_theta_over_lambda)
Category:
refln
