TY - JOUR
T1 - Synthesis, structure, photophysics, electrochemistry, and ion-binding studies of ruthenium(II) 1,10-phenanthroline complexes containing thia-, selena-, and aza-crown pendants
AU - Li, Mei Jin
AU - Chu, Ben Wai Kin
AU - Zhu, Nianyong
AU - Yam, Vivian Wing Wah
N1 - V.W.-W.Y. acknowledges support from the University Development Fund of The University of Hong Kong, The University of Hong Kong, and the University Grants Committee of the Hong Kong Special Administrative Region, China (Project AoE/P-10/01). M.-J.L. acknowledges the receipt of a postgraduate studentship, administered by The University of Hong Kong.
PY - 2007/2/5
Y1 - 2007/2/5
N2 - A series of ruthenium(II) diimine complexes containing thia-, selena- and aza-crowns derived from 1,10-phenanthroline have been synthesized and characterized, and their photophysics and electrochemistry were studied. Their interaction with metal ions was investigated by UV-vis, luminescence, and 1H NMR spectroscopy. The crystal structures of [Ru(bpy) 2(L1)](PF6)2, [Ru(bpy)2(L2)] (ClO4)2, [Ru(bpy)2(L3)](ClO4) 2, and [Ru(bpy)2(L4)](ClO4)2 have been determined. The luminescence properties of [Ru(bpy)2(L1)] (ClO4)2 were found to be sensitive and selective toward the presence of Hg2+ ions in an acetonitrile solution. The addition of alkaline-earth metal ions, Zn2+, Cd2+, and Hg 2+ ions, to the solution of [Ru(bpy)2(L6)](ClO 4)2 in acetonitrile gave rise to large changes in the UV-vis and emission spectra. The binding of metal ions to [Ru(bpy) 2(L6)](ClO4)2 was found to cause a strong enhancement in the emission intensities of the complex, with high specificity toward Hg2+ ions.
AB - A series of ruthenium(II) diimine complexes containing thia-, selena- and aza-crowns derived from 1,10-phenanthroline have been synthesized and characterized, and their photophysics and electrochemistry were studied. Their interaction with metal ions was investigated by UV-vis, luminescence, and 1H NMR spectroscopy. The crystal structures of [Ru(bpy) 2(L1)](PF6)2, [Ru(bpy)2(L2)] (ClO4)2, [Ru(bpy)2(L3)](ClO4) 2, and [Ru(bpy)2(L4)](ClO4)2 have been determined. The luminescence properties of [Ru(bpy)2(L1)] (ClO4)2 were found to be sensitive and selective toward the presence of Hg2+ ions in an acetonitrile solution. The addition of alkaline-earth metal ions, Zn2+, Cd2+, and Hg 2+ ions, to the solution of [Ru(bpy)2(L6)](ClO 4)2 in acetonitrile gave rise to large changes in the UV-vis and emission spectra. The binding of metal ions to [Ru(bpy) 2(L6)](ClO4)2 was found to cause a strong enhancement in the emission intensities of the complex, with high specificity toward Hg2+ ions.
UR - http://www.scopus.com/inward/record.url?scp=33847093346&partnerID=8YFLogxK
U2 - 10.1021/ic061507z
DO - 10.1021/ic061507z
M3 - Journal article
C2 - 17257013
AN - SCOPUS:33847093346
SN - 0020-1669
VL - 46
SP - 720
EP - 733
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 3
ER -