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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
_atom_site_aniso.B_22_su
Name:_atom_site_aniso.B_22_su
Aliases:
_atom_site_aniso_B_22_su
_atom_site.aniso_B[2][2]_esd
_atom_site_anisotrop.B[2][2]_esd
Definition:
These are the standard uncertainty values (s.u.) for the standard
form of the B^ij^ anisotropic atomic displacement components (see
aniso_BIJ). Because these values are _type.purpose Measurand, the
s.u. values may in practice be auto generated as part of the
B^ij^ calculation.
Type: Real
Units: angstrom_squared
Category:
atom_site_aniso