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N-(2,4-二硝基苯基)-N'-取代苯腙衍生物对阴离子识别研究
Authors
傅绪成
江云宝
聂丽
胡蕾
Publication date
14 January 2011
Publisher
Abstract
合成了4种N-(2,4-二硝基苯基)-N'-取代苯腙类阴离子结合受体(1~4,取代基R=H,o-OCH3,o-Cl,o-OH),应用紫外吸收光谱方法研究了其与阴离子的相互作用,以及考察N'-苯环取代基对受体分子之阴离子亲合力和选择性的影响.实验显示:乙腈中F-、CH3CO-2等阴离子使受体分子吸收光谱红移,溶液由黄色转变为红色,其中受体分子2对F-表现出高选择性的灵敏响应.实验表明受体-阴离子间形成了氢键型超分子配合物,Job作图法给出了受体分子与阴离子的1∶1结合计量比,1H NMR滴定为受体分子与阴离子间的氢键作用本质提供了直接证据
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Last time updated on 16/06/2016