Ionochromic Effects and Structures of Metalated Poly(p-phenylenevinylene) Polymers Incorporating 2,2‘-Bipyridines

摘要: The effects of metal ion chelation to the 2,2‘-bipyridine (bpy) groups on photophysics and exciton dynamics two conjugated polymers 1 2 in solution are investigated. structures have 2,2‘-bipyridyl-5-vinylene units that alternate with one three 2,5-bis(n-decyloxy)-1,4-phenylenevinylene monomer units, respectively. metalated compared those metal-free (Chen et al. J. Phys. Chem. A 1999, 103, 4341−4351). origins ionochromic due were studied using both steady-state transient optical spectroscopy, results indicate conformational flattening participation π electrons from π-conjugation polymer backbone play important roles binding induced red shifts absorption photoluminescence spectra. properties determined by electroni...