|CDX Constant Name:||kCDXObj_Fragment|
|CDX Constant Value:||0x8003|
|Contained by objects:||kCDXObj_Page, kCDXObj_Group, kCDXObj_Node, kCDXObj_NamedAlternativeGroup|
|First written/read in:||ChemDraw 4.0|
Fragment object is a collection of nodes and their connectivity (bonds). Generally, all nodes within a fragment will be connected, but this is not strictly guaranteed. For example, a cyclopentadienyl anion might be represented as a single fragment containing five nodes, five bonds, a curve (an ellipse, to represent delocalization), and a graphic (a circled minus charge, to represent the delocalized charge).
Unlike with Group objects, Fragment objects are guaranteed to be chemically meaningful.
A Fragment has no required objects or properties, but a Fragment without any objects is pretty useless.
|The basic building block of chemical objects, usually referring to a single atom|
|A connection between two Node objects.|
|A (generally non-chemical) graphic object such as a line, arc, circle, or rectangle.|
|A Bézier curve.|
|Arbitrarily named property, one or more of which can be attached to any ChemDraw object.|
|A unique identifier for an object, used when other objects refer to it.|
|The smallest rectangle that encloses the graphical representation of the object.|
|Indicates that the molecule is a racemic mixture.|
|Indicates that the molecule has known absolute configuration.|
|Indicates that the molecule has known relative stereochemistry, but unknown absolute configuration.|
|The molecular formula representation of a molecule object.|
|The average molecular weight of a molecule object.|
|An ordered list of attachment points within a fragment.|