title: Design and synthesis of iridium(III) azacrown complex: application as a highly sensitive metal cation phosphorescence sensor.
abstract: A new metal cation probe bearing a central Ir(III) element and 1-aza-15-crown-5-ether substituted pyridyl pyrazolate as the chelate was synthesized. The octahedral molecular structure of was confirmed using single crystal X-ray diffraction analyses. Subsequent photophysical study showed yellow-green emission at approximately 560 nm in both fluid solution and solid state at room temperature. Remarkable differentiation in spectral properties upon metal cation (e.g. Ca2+) complexation makes complex a highly sensitive phosphorescence probe.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan.
authors.forename: Mei-Lin
authors.initials: ML
authors.lastname: Ho
authors.forename: Fu-Ming
authors.initials: FM
authors.lastname: Hwang
authors.forename: Pei-Nung
authors.initials: PN
authors.lastname: Chen
authors.forename: Ya-Hui
authors.initials: YH
authors.lastname: Hu
authors.forename: Yi-Ming
authors.initials: YM
authors.lastname: Cheng
authors.forename: Kung-Shih
authors.initials: KS
authors.lastname: Chen
authors.forename: Gene-Hsiang
authors.initials: GH
authors.lastname: Lee
authors.forename: Yun
authors.initials: Y
authors.lastname: Chi
authors.forename: Pi-Tai
authors.initials: PT
authors.lastname: Chou
mesh_terms: D002412:Cations / Q000032:analysis; D047248:Crown Compounds / Q000737:chemistry*; D007495:Iridium / Q000737:chemistry*; D049408:Luminescent Agents; D008163:Luminescent Measurements; D008670:Metals / Q000032:analysis*; D015394:Molecular Structure; D013057:Spectrum Analysis; D014961:X-Ray Diffraction
chemical_list: D002412:Cations; D047248:Crown Compounds; D049408:Luminescent Agents; D008670:Metals; D007495:Iridium