title: Study on an oxygen sensing rhenium(I) complex with enlarged sensing/active area: fabrication, photophysical parameters and molecular oxygen sensing performance.
abstract: In this paper, we synthesize a novel 1,10-phenanthroline-derived (Phen-derived) diamine ligand of benzo[f][1,10]phenanthroline-6,7-dicarbonitrile (Phen-CN) with enlarged conjugation planar and its corresponding Re(I) complex of Re(CO)3Cl(Phen-CN), hoping to achieve an optical sensor owing large sensing/active area. Its geometric and electronic structures are investigated, which suggests that the effective sensing/active area of Re(CO)3Cl(Phen-CN) is enlarged by the successful formation of conjugation planar. The promising photophysical parameters of Re(CO)3Cl(Phen-CN), including large sensing/active area and long excited state lifetime, make it a potential probe for oxygen detection. By doping Re(CO)3Cl(Phen-CN) into a polymer matrix of poly(vinylpyrrolidone), oxygen sensing performances of the resulted composite materials are investigated. Finally, a high sensitivity of 17.1 is realized, with short response/recovery time of 9s/32s.
authors.affiliation: College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China. Electronic address: ilvy06@163.com.
authors.forename: Guiying
authors.initials: G
authors.lastname: Xu
authors.affiliation: School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, Jiangxi Province, China.
authors.forename: Mang
authors.initials: M
authors.lastname: Lu
authors.affiliation: Materials Science & Engineering College, Chongqing University of Technology, Chongqing 400054, China.
authors.forename: Can
authors.initials: C
authors.lastname: Huang
authors.affiliation: College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
authors.forename: Yaoqiong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
authors.forename: Shuping
authors.initials: S
authors.lastname: Ge
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D003959:Diamines / Q000737:chemistry; D008163:Luminescent Measurements; D008958:Models, Molecular; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D010100:Oxygen / Q000032:analysis*; D010618:Phenanthrolines / Q000737:chemistry; D012211:Rhenium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D003959:Diamines; D010618:Phenanthrolines; D012211:Rhenium; D010100:Oxygen; C025205:1,10-phenanthroline
keywords: Conjugation planar; Oxygen sensing; Photoluminescence; Re(I) complex