Radius of the smallest sphere, on the center of mass enclosing all atoms
Shadow area in the XY plane
the mean of the bond distance
Shadow area in the YZ plane
the mean of the bond distance * Number of bonds
interatomic distance between the first and the last atoms of the molecule
AI_SddssS
Sum of AI value for ddssS type
AI_SsCl
Sum of AI value for sCl type
AI_SsBr
Sum of AI value for sBr type
AI_SsI
Sum of AI value for sI type