Novel heterocyclic coordination polymers: Synthesis and characterization

Designing molecular species that can spontaneously self-assemble:into well- defined structures paves the way to material systems with wide a range of a pplications. For:his reason,hybrid molecular systems based on the combinati on of conjugated organic polymers and redox- active transition metals is of current interest. Conjugated heterocyclic polymeric systems, poly(2,2'-bip yridine 5,5'-vinylene) and poly[rutheniumbis(bipyridine)(2,2'-bipyridine 5, 5'-vinylene)] have been synthesized and characterized by TGA, FT-IR and UV- VIS in conjunction with microanalysis. The latter is obtained from the poly merization reaction directly as a blue-black solid with lambda max of 600 n m and an inherent conductivity of 4.5x10(-6)Scm(-1), the former on the othe r hand, is a reddish-brown solid with lambda max of 380 nm and fluorescence maximum at 535 nm using 380 nm excitation wavelength. The undoped polymer is an insulator and p doping with AuCl3/CH3CN, I-2 and NOPF6 did not have a ny effect on the conductivity.