Novel ditopic terpyridine and phenylterpyridine ligands bridged by one or two ethynyl bonds: syntheses of rigid rod-like multinuclear complexes

Article abstract of DOI:10.1016/0022-328X(93)83132-F

A novel series of ditopic ligands bearing two 2,2':6',2"-terpyridine ot two 4'-phenyl-2,2':6',2"-terpyridine subunits and an ethynyl (3a and 3b) or a diethynyl (4a and 4b) bridge has been synthesised from 4'-ethynyl-2,2':6',2"-terpyridine (1d) and 4'-(4-e