Data Item _refine.ls_abs_structure_Flack
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General 
- Item name
- _refine.ls_abs_structure_Flack
- Category name
- refine
- Attribute name
- ls_abs_structure_Flack
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The measure of absolute structure (enantiomorph or polarity) as
defined by Flack. The value must be between 0. and 1. with a
standard uncertainty (e.s.d.).
Ref: Flack, H. D. (1983). Acta Cryst. A39, 876-881.
Data Type 
- Data type code
- float
- Data type detail
- int 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]+)?
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | 1.0 |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _refine.ls_abs_structure_Flack_esd | associated_esd |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _refine_ls_abs_structure_Flack | cif_core.dic | 2.0.1 |