Data Item _chemical_formula.analytical

General

Item name
_chemical_formula.analytical
Category name
chemical_formula
Attribute name
analytical
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

Formula determined by standard chemical analysis including trace elements. See the CHEMICAL_FORMULA category description for rules for writing chemical formulae. Parentheses are used only for standard uncertainties (estimated standard deviations).

Item Example

 Fe2.45(2)  Ni1.60(3)  S4

Data Type

Data type code
text
Data type detail
text item types / multi-line text ...
Primitive data type code
char
Regular expression
[][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*

Aliases

Alias Item Name Dictionary Name Dictionary Version
_chemical_formula_analytical cif_core.dic 2.0.1