Design and synthesis of iridium(III) azacrown complex: application as a highly sensitive metal cation phosphorescence sensor.
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.
Ho
Mei-Lin
ML
Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan.
Hwang
Fu-Ming
FM
Chen
Pei-Nung
PN
Hu
Ya-Hui
YH
Cheng
Yi-Ming
YM
Chen
Kung-Shih
KS
Lee
Gene-Hsiang
GH
Chi
Yun
Y
Chou
Pi-Tai
PT
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
D002412:Cations; D047248:Crown Compounds; D049408:Luminescent Agents; D008670:Metals; D007495:Iridium