| CDXML Name: | PolymerRepeatPattern |
| CDX Constant Name: | kCDXProp_Polymer_RepeatPattern |
| CDX Constant Value: | 0x0A25 |
| Data Size: | INT8 |
| Property of objects: | kCDXObj_Graphic, kCDXObj_BracketedGroup |
| First written/read in: | ChemDraw 7.0 |
| Required? | No |
Description:
The head-to-tail connectivity of objects contained within the bracket.
For simple linear polymers, the repeating units might connect head-to-tail or head-to-head (or their repeat pattern might be a mixture or unknown):
Although this property is written to both Graphic objects and to Bracketed Groups, as of ChemDraw 7.0 it is read only from Graphic objects.
This is an enumerated property. Acceptible values are shown in the following list:
| Value | CDXML Name | Description |
| 0 | HeadToTail | One end of the repeating unit is connected to the other end of the adjacent repeating unit |
| 1 | HeadToHead | One end of the repeating unit is connected to the same end of the adjacent repeating unit |
| 2 | EitherUnknown | A mixture of the above, or an unknown repeat pattern |
If this property is absent:
The repeating unit is assumed to connect head-to-tail.
