CDX
Codename: cdx
The cdx format of CambridgeSoft's ChemDraw is imported by Marvin. However,
neither cdx format export nor import and export of the cdxml format is supported yet.
Import
The following node types are imported:
- Element
- Element List
- Nickname
- Fragment
- Generic Label
- Alternative Group
- Attachment Point
- Link Node
- Variable Attachment
- Multi Attachment
- Anonymous Alternative Group
We do not support these types at the moment:
Detailed import features
- Element
- The 'Element' type node is read as a single atom. For the supported
properties see the supported Atom properties list.
- Element List
- Element Lists are read as Marvin's Atom List (or not list). For the supported
properties see the supported node properties list.
- Label
- Labels are converted to an S-group and appear contracted in the sketch.
- Generic Label
- Generic Labels are read as Generic query atoms. See details.
- Atom properties
- Following properties are supported: charge, isotope, substituents, free sites,
unsaturation, reaction stereo, enhanced stereochemistry, radical, ring bond count.
See details.
- Attachment Points
- Attachment Point is imported as atom property, maximum of two per compound.
- Bond types
- Single bonds, double bonds, query bonds, topology, reaction centers are imported.
See details.
- Reaction arrows
- All types of arrows are imported, but only one arrow per file. See details.
- Bracketed groups
- All groups are imported. See details.
- Alternative Group
- Alternative Groups are read as R-groups, up to two connections per R-group.
- Anonymous Alternative Group
- An Anonymous Alternative Group is imported as R-group and is assigned the
R-group number n+1 where n is the largest R-group number in the file.
- Link Node
- Link Node is read as Link Node.
- Variable Attachment and Multi-Center Attachment
- These are imported as Multicenter S-groups.
- Text Box
- Marvin reads the position and the text.
Notes
- ElectronFlow is not supported.
- Only ASCII characters are imported.
- Text formatting is not supported.
- Graphical objects (e.g. laboratory equipment drawings, biological drawings)
are not imported.