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Synthesis, Photophysical and Electrochemical Properties of Amide‐Linked Phthalocyanine‐Fullerene Dyad
Author(s) -
Zhao Haiying,
Liu Zhibo,
Zhang Xiaoliang,
Tian Jianguo,
Chen Chen,
Zhu Yizhou,
Zheng Jianyu
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201200218
Subject(s) - chemistry , cyclic voltammetry , photochemistry , phthalocyanine , quantum yield , fullerene , ultrafast laser spectroscopy , singlet state , electrochemistry , delocalized electron , absorption (acoustics) , excited state , amide , fluorescence , organic chemistry , electrode , spectroscopy , quantum mechanics , nuclear physics , acoustics , physics
A new amide‐linked phthalocyanine‐fullerene dyad ZnPc‐C 60 was synthesized and characterized. The photophysical and electrochemical properties of the ZnPc‐C 60 dyad were investigated. The fluorescence spectrum and quantum yield in different solvents showed the occurrence of photoinduced electron transfer (PET) from the singlet excited ZnPc to C 60 , which was further confirmed by nanosecond transient absorption spectra and cyclic voltammetry data. The free energy change for charge separation (Δ G CS ) was estimated to be exothermic with −0.51 eV, which favored the formation of charge‐separation state. The PET from ZnPc to C 60 in ZnPc‐C 60 made the dyad exhibit stronger reverse saturable absorption performance compared with C 60 and the control sample in the Z‐scan experiments, which indicated the synergistic effect of two active moieties in the dyad.