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Core dictionary version 3.0.14
_atom_site_aniso.U_12
Name:_atom_site_aniso.U_12
Aliases:
_atom_site_aniso_U_12
_atom_site.aniso_U[1][2]
_atom_site_anisotrop.U[1][2]
Definition:
These are the standard anisotropic atomic displacement components in angstroms squared which appear in the structure factor term: T = exp{-2pi^2^ sum~i~ [sum~j~ (U^ij^ h~i~ h~j~ a*~i~ a*~j~) ] } h = the Miller indices a* = the reciprocal-space cell lengths The unique elements of the real symmetric matrix are entered by row.
Type: Real
Units: angstrom_squared
Category:
atom_site_aniso