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 applications. For this reason, hybrid molecular systems based on the combination of conjugated organic polymers and redox- active transition metals is of current interest. Conjugated heterocyclic polymeric systems, poly (2,2′-bipyridine 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 polymerization reaction directly as a blue-black solid with λmax of 600 nm and an inherent conductivity of 4.5x10−6Scm−1, the former on the other hand, is a reddish-brown solid with λmax 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, I2 and NOPF6 did not have any effect on the conductivity.