C₆₀-modified mixed (phthalocyaninato)(porphyrinato) yttrium(III) double-decker complex: Synthesis, characterization, and photophysical properties

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• 作者：Likun Li ; Xianyao Zhang ; Xiaochuan He ; Wenxin Lu ; Liguo Yang ; Yongzhong Bian ; Yuxiang Weng ; Jianzhuang Jiang
• 关键词：Porphyrin ; Phthalocyanine ; Fullerene ; Yttrium ; Sandwich complex ; Electron transfer
• 刊名：Dyes and Pigments
• 出版年：March, 2014
• 年：2014
• 卷：102
• 期：Complete
• 页码：257-262
• 全文大小：1051 K

文摘

A novel mixed (phthalocyaninato)(porphyrinato) yttrium(III) double-decker complex with a C₆₀ chromophore covalently linked at the porphyrin ligand by phenyl ether linkage has been designed and synthesized. The photophysical properties of this novel dyad containing the C₆₀ and mixed (phthalocyaninato)(porphyrinato) yttrium(III) double-decker components were investigated by steady-state and transient spectroscopic methods. Comparative studies over the electronic absorption spectra document that there is no considerable electronic interaction between the C₆₀ and mixed (phthalocyaninato)(porphyrinato) yttrium(III) double-decker components in the ground state. Time-resolved absorption spectra of this dyad reveal a photoinduced electron transfer from the {HY[Pc(伪-OC₄H₉)₈](Por)} moiety to the C₆₀ moiety upon irradiation at 400聽nm, which excites both of the components, resulting in a charge-separated state with a lifetime longer than 1聽ns.