4'-Iodo-2,2':6',2''-terpyridine
4'-Iodo-2,2':6',2''-terpyridine is a transoid that has two conformations: one with the pyridine ring in the cisoid position and one with the pyridine ring in the transoid position. It can form intermolecular interactions with other molecules of 4'-iodo-2,2':6',2''-terpyridine. These interactions may be due to stacking or planar interactions.