Synthesis and electrochemical behavior of novel peripherally and non-peripherally substituted ball-type cobalt phthalocyanine complexes

被引:12
作者
Canlica, Mevlude [2 ]
Booysen, Irvin Noel [1 ]
Nyokong, Tebello [1 ]
机构
[1] Rhodes Univ, Dept Chem, Grahamstown, South Africa
[2] Yildiz Tech Univ, Dept Chem, Inorgan Chem Div, TR-34220 Istanbul, Turkey
基金
新加坡国家研究基金会;
关键词
Cobalt phthalocyanine; Ball-type phthalocyanines; Cyclic voltammetry; Spectroelectrochemistry; GAS-SENSING PROPERTIES; ELECTRICAL-PROPERTIES; NONLINEAR ABSORPTION; METAL-FREE; CLAMSHELL; ZINC(II); REFRACTION; BIS;
D O I
10.1016/j.poly.2010.11.028
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The syntheses of new ball-type Co(II) phthalocyanines containing 4,4'-(9H-fluorene-9,9-diyl)diphenol substituents at non-peripheral (complex 6) and peripheral (complex 7) positions are presented. These complexes were characterized by UV-Vis. FT-IR, mass spectroscopy and electrochemical methods. Both complexes exhibit metal and ring based redox processes, typical of cobalt phthalocyanine complexes. For 6, the metal based reduction was observed at -0.46 V followed by a ring based reduction at -1.40 V. The metal oxidation for 6 was observed at +0.16 V and the ring based oxidation at +1.05 V. For 7, reductions are easier but the oxidations are more difficult. The metal based reduction for 7 was observed at -0.38 V followed by a ring based reduction at -1.03 V. The metal oxidation for 7 was observed at +0.20V and the ring based oxidation at +1.35 V. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:522 / 528
页数:7
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