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·858·                             精细化工   FINE CHEMICALS                                 第 39 卷

            硫代苯并噻唑自由基吸附于铂表面,其 S—Pt 氢键电                         意义。以其他种类季铵盐为烷基源,采用电化学方
            子云密度如图 5c 所示。物种Ⅳ是 MTBT 吸附于铂表                       法实现硫醇类底物中硫原子烷基化的反应值得进一
            面,其 S—Pt 氢键电子云密度如图 5d 所示。从吸附位                      步研究,以期用低价的原料和方法获得丰富的硫醚
            点与铂之间存在电子云可知,吸附物确与铂之间发生                            类化合物。
            了稳固的吸附,即路径 c 中节点物种的存在合理。
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                                      3
                               –3
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