| CDXML Name: | Charge |
| CDX Constant Name: | kCDXProp_Atom_Charge |
| CDX Constant Value: | 0x0421 |
| Data Size: | INT8 |
| Property of objects: | kCDXObj_Node |
| First written/read in: | ChemDraw 4.0 / 6.0 |
| Required? | No |
Description:
The atomic charge of an atom.
Fractional values for charge are not supported.
In CDX files produced by ChemDraw 8.0, this property was mistakenly written as a 4-byte Fixed value. When reading CDX files, if the size of this property is found to be 4 bytes instead of the expected 1 byte, the actual value should be interpreted as actualCharge = (INT32)savedCharge >> 24. ChemDraw returned to writing INT8 values starting with version 8.0.6.
If this property is absent:
The atom is assumed to be uncharged.
