Data Item _atom_type.pdbx_scat_Cromer_Mann_a5

General

Item name
_atom_type.pdbx_scat_Cromer_Mann_a5
Category name
atom_type
Attribute name
pdbx_scat_Cromer_Mann_a5
Required in PDB entries
no
Used in current PDB entries
Yes, in about 0.005 % of entries

Item Description

Scattering-factor coefficient a5, used to calculate electron elastic atomic scattering factors for the defined atom type. Electron Elastic Scattering Factors Ref: International Tables for X-ray Crystallography (2006). Vol. C, Table 4.3.2.2, pp. 282-283. Cromer_Mann equation Ref: International Tables for X-ray Crystallography (1974). Vol. IV, Table 2.2B or: International Tables for Crystallography (2004). Vol. C, Tables 6.1.1.4 and 6.1.1.5.

Data Type

Data type code
float
Data type detail
float item types are the subset of numbers that are the floating numbers.
Primitive data type code
numb
Regular expression
-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?