Index

Macromolecular dictionary (mmCIF) version 2.0.09

_cell.reciprocal_length_a

Name:
'_cell.reciprocal_length_a'

Definition:

   The reciprocal cell length (recip-a) in inverse Angstroms.
              (recip-a), (recip-b) and (recip-c) are related to the real cell
              by the following equation:

   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.

   Ref: Buerger, M. J. (1942). X-ray Crystallography, p. 360.
           New York: John Wiley & Sons Inc.

Type: float

Type conditions: esd

Mandatory item: no

Alias:
_cell_reciprocal_length_a (cif_core.dic version 2.3)
The permitted range is [0.0, infinity)

Related item: _cell.reciprocal_length_a_esd (associated_esd)

Category: cell