CAJ | 학술논문

采用前体二胺1[间苯二酚-双(4-氨基苯基)醚]和前体二醛2[1,7-二-(2'-甲酰苯基)-1,4,7-三氧庚烷],在Ba2+的诱导作用下,用“一锅煮法”合成得到一种新型的席夫碱大环3,利用1H NMR,13C NMR,IR,质谱等对其进行了结构和组成表征。进一步采用 UV-vis 光谱技术,对大环3与系列稀土金属离子的键合作用进行考察。结果表明,大环化合物3对铕( III)离子具有选择性识别作用,并进一步测定了大环3与铕( III)离子配位作用的键合比为1∶1,键合常数为1．72×104 L·mol-1。
채용전체이알1[간분이분-쌍(4-안기분기)미]화전체이철2[1,7-이-(2'-갑선분기)-1,4,7-삼양경완],재Ba2+적유도작용하,용“일과자법”합성득도일충신형적석부감대배3,이용1H NMR,13C NMR,IR,질보등대기진행료결구화조성표정。진일보채용 UV-vis 광보기술,대대배3여계렬희토금속리자적건합작용진행고찰。결과표명,대배화합물3대유( III)리자구유선택성식별작용,병진일보측정료대배3여유( III)리자배위작용적건합비위1∶1,건합상수위1．72×104 L·mol-1。
Schiff base macrocycle 3 was synthesized from the reaction of the precusor 1[2-resorcinol-bis(4-aminophenyl)ether]and precursor 2[1,7-bis(2'-formylphenyl)-1,4,7-trioxaheptance]by“one-pot method”using Ba2+ as template. The structures and com-position were characterized by 1 H NMR,IR,and MS spectra,respectively. The investigation for the reaction of the macrocyclic com-pound 3 with a series of rare earth ions was carried out by UV-vis absorption spectra technique. The results showed that the macro-cycle 3 displayed a selective recognition ability for Eu3+ion. Further,the JOB plot exhibited the stoichiometric ratio( host∶guest=1∶1),the binding constant of the complex was determined,namely K=1. 72 × 104L·mol-1.