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制备了三种聚烷基紫精-十二烷基硫酸根复合物(PRV-LS),用紫外光谱、顺磁共振波谱研究了复合物的氧化、还原行为,将复合物用作电子转移催化剂于异相体系(CH_2Cl_2-H_2O;1:1,20mL)考察了其诱导的偶氮苯还原。结果表明:复合物在异相条件被还原时,聚烷基紫精自由基(PRV~+·)在LS成份的作用下发生相转移,复合物具有良好的诱导偶氮苯还原的能力。
Three kinds of polyalkyl viologen-lauryl sulfate complex (PRV-LS) were prepared. The oxidation and reduction behavior of the complex were studied by UV-Vis and paramagnetic resonance spectroscopy. The complex was used as electron transfer catalyst The azobenzene reduction induced by heterogeneous system (CH_2Cl_2-H_2O; 1: 1, 20mL) was investigated. The results showed that when the complex was reduced under heterogeneous conditions, the polyalkyl viologen free radical (PRV ~ + ·) was phase-shifted under the action of LS and the complex had a good ability to induce azobenzene reduction.