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论文类型：期刊论文

发表时间：2005-06-06

发表刊物：TETRAHEDRON

收录刊物：SCIE、Scopus

卷号：61

期号：23

页面范围：5655-5662

ISSN号：0040-4020

关键字：porphyrin; ruthenium; electrochemistry; photophysics

摘要：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.