Reactivity of NO2 with Porous and Conductive Copper Azobispyridine Metallopolymers

Autor: Robert M. Waymouth, Shengkai Wang, Benjamin D. Matson, Adam H. Slavney, Hemamala I. Karunadasa, Mary Anne Manumpil, Naomi E. Clayman, Ritimuka Sarangi
Rok vydání: 2019
Předmět:
Zdroj: Inorganic Chemistry. 58:10856-10860
ISSN: 1520-510X
0020-1669
DOI: 10.1021/acs.inorgchem.9b01190
Popis: We report the reactivity of copper azobispyridine (abpy) metallopolymers with nitrogen dioxide (NO2). The porous and conductive [Cu(abpy)]n mixed-valence metallopolymers undergo a redox reaction with NO2, resulting in the disproportionation of NO2 gas. Solid- and gas-phase vibrational spectroscopy and X-ray analysis of the reaction products of the NO2-dosed metallopolymer show evidence of nitrate ions and nitric oxide gas. Exposure to NO2 results in complete loss of porosity and a decrease in the room-temperature conductivity of the metallopolymer by four orders of magnitude with the loss of mixed-valence character. Notably, the porous and conductive [Cu(abpy)]n metallopolymers can be reformed by reducing the Cu-nitrate species.
Databáze: OpenAIRE