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 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
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 - Article
C2 - 17257013
AN - SCOPUS:33847093346
SN - 0020-1669
VL - 46
SP - 720
EP - 733
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 3
ER -