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Synthesis and electrochemical characterization of biphenyl-malonic ester substituted cobalt, copper, and palladium phthalocyanines

机译:联苯丙二酸酯取代的钴,铜和钯酞菁的合成和电化学表征

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摘要

Phthalocyanines with four biphenyl-malonic ester groups on the periphery were synthesized by cyclotetramerization of 4-(1,1-dicarbethoxy-2-(4-biphenyl)-ethyl)-phthalonitrile. The new compounds were characterized by elemental analyses, FT-IR, H-1 NMR, C-13 NMR, UV-Vis, and MASS spectral data. Electrochemical behaviors of novel Co(II), Cu(II), and Pd(II) phthalocyanines were investigated by cyclic voltammetry, potential differential pulse voltammetry, and applied potential chronocoulometry techniques. While Cu(II) and Pd(II) phthalocyanines give up to four common phthalocyanine ring reductions, Co(II) phthalocyanine gave two ligand-centered and two metal-centered redox processes. HOMO-LUMO gap of the complexes are comparable with the reported MPc papers. (c) 2006 Elsevier Ltd. All rights reserved.
机译:通过4-(1,1-二甲乙氧基-2-(4-联苯)-乙基)-苯甲腈的环四聚反应合成了在外围具有四个联苯丙二酸酯基的酞菁。这些新化合物的特征在于元素分析,FT-IR,H-1 NMR,C-13 NMR,UV-Vis和MASS光谱数据。通过循环伏安法,电位差脉冲伏安法和应用电位计时库仑法研究了新型Co(II),Cu(II)和Pd(II)酞菁的电化学行为。虽然Cu(II)和Pd(II)酞菁最多可减少四个普通的酞菁环还原反应,但Co(II)酞菁最多可提供两个以配体为中心和两个以金属为中心的氧化还原过程。配合物的HOMO-LUMO缺口与已报道的MPc论文相当。 (c)2006 Elsevier Ltd.保留所有权利。

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