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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
_cell.volume
Name:_cell.volume
Alias:
_cell_volume
Definition:
Volume of the crystal unit cell.
V = a b c [1 - cos^2^(alpha) - cos^2^(beta) - cos^2^(gamma)
+ 2 cos(alpha) cos(beta) cos(gamma) ] ^1/2^
a = _cell.length_a
b = _cell.length_b
c = _cell.length_c
alpha = _cell.angle_alpha
beta = _cell.angle_beta
gamma = _cell.angle_gamma
Type: Real
Units: angstrom_cubed
The permitted range is 0.0 → infinity
Evaluation method:
With c as cell
_cell.volume = c.vector_a * ( c.vector_b ^ c.vector_c )
Category:
cell
