This is an archive copy of the IUCr web site dating from 2008. For current content please visit https://www.iucr.org.
[IUCr Home Page] [CIF Home Page] [mmCIF Home Page]

Item _chem_comp_bond.value_order


| Top | Dictionary | Category Groups | Categories | Items | Data |

Description 


              The value that should be taken as the target for the chemical
               bond associated with the specified atoms, expressed as a bond
               order.

Category

chem_comp_bond

Mandatory Code

no

Data Type Code

ucode

Default Value

sing

Enumeration Values

Item Value Description
sing single bond
doub double bond
trip triple bond
quad quadruple bond
arom aromatic bond
poly polymeric bond
delo delocalised double bond
pi pi bond

| Top | Dictionary | Category Groups | Categories | Items | Data |



This HTML dictionary was created using the
CIFLIB C Language Application Program Interface
at the
Resource Collaboratory for Structural Bioinformatics
Rutgers University, Department of Chemistry
New Brunswick, New Jersey
help@rcsb.rutgers.edu