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Indexed by:期刊论文
Date of Publication:2005-06-06
Journal:TETRAHEDRON
Included Journals:SCIE、Scopus
Volume:61
Issue:23
Page Number:5655-5662
ISSN No.:0040-4020
Key Words:porphyrin; ruthenium; electrochemistry; photophysics
Abstract:A new molecular dyad, comprised of a zinc-porphyrin and a ruthenium(II) tris(bipyridine) complex linked through an amide bond has been synthesized and characterized by H-1, C-13 NMR, UV-vis, mass-spectrometry and elemental analysis. The electrochemistry as well as the steady-state emission properties were investigated. The redox behavior of the dyad exhibits a favorable reversible characteristic. Substantial quenching of porphyrin emission was found when the Q hand of 5 and 5-Zn was selectively photoexcited. This observation suggests a quenching mechanism with possible intramolecular electron transfer or energy transfer between the Ru(bpy)(3) moiety and the porphyrin free-base or Zn porphyrin moieties. (c) 2005 Elsevier Ltd. All rights reserved.
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