Inorganic Chemistry, Vol.51, No.11, 6259-6263, 2012
Metallopolymeric Films Based on a Biscyclometalated Ruthenium Complex Bridged by 1,3,6,8-Tetra(2-pyridyl)pyrene: Applications in Near-Infrared Electrochromic Windows
A biscyclometalated ruthenium complex bridged by the 2,7-deprotonated form of 1,3,6,8-tetra(2-pyridyl)pyrene was deposited onto indium-tin oxide glass electrodes by reductive electropolymerization. The resulting metallopolymeric films exhibited tricolor electrochromic behavior in the near-infrared region upon switching of the two well-separated Ru-II/III processes at low potentials. A good contrast ratio (35%) at 2050 nm and a long memory time up to 100 min were recorded for this electrochromic behavior. The response time is typically of a few seconds.