Facile synthesis, spectroscopic and electrochemical properties, and theoretical calculations of porphyrin dimers with a bridging amide-bonded xanthene moiety

Author:

Liang Xu12,Xu Li1,Li Minzhi1,Mack John3,Stone Justin3,Nyokong Tebello3,Jiang Yu1,Kobayashi Nagao2,Zhu Weihua1

Affiliation:

1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China

2. Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan

3. Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa

Abstract

A free base porphyrin dimer bridged by a flexible amide-bonded xanthene moiety and its binuclear zinc(II) complex zinc(II) complex were synthesized and characterized. Structural characterization by MS and 1 H NMR spectroscopy confirmed the bridged porphyrin dimer structure. The properties of the dimers were characterized by IR, UV-visible absorption, fluorescence and magnetic circular dichroism (MCD) spectroscopy, and electrochemistry studies. Theoretical calculations were carried out to analyze the electronic structures of porphyrin dimers with a bridging amide-bonded xanthene moiety.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Chemistry

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