4,6-二正丙氧基-1,3-二-(4-烯丙基-2-甲氧基)苯二磺酸酯对金属离子的识别作用

Selective recognition toward metal cations of 4,6-bis-propyloxy-benzene-1, 3-disulfonic acid bis-(4-allyl-2-methoxy-phenyl) ester

利用紫外光谱分析的方法研究了4,6-二正丙氧基-1,3-二-(4-烯丙基-2-甲氧基)苯二磺酸酯对Ca2+、Pb2+及部分过渡金属等20种金属离子的识别。结果发现:化合物对Bi3+显示出较好的选择性,在化合物-Bi3+的体系中加入Sn2+(或Cu2+),由于Sn2+(或Cu2+)和Bi3+协同作用的影响,紫外吸收光谱290~300nm处的吸收峰红移至313~322nm左右,并且随Sn2+(或Cu2+)浓度的增大峰红移,峰强度逐渐增强。

The recognition of 4,6-Bis-propyloxy-benzene-1,3-disulfonic acid bis-（4-allyl-2-methoxy-phenyl）ester for Ca^（2＋）,Pb^（2＋） and some transition metal ions was studied with UV spectroscopy.The primary results showed that the compound has better recognition capabilities for Bi^（3＋）;if Sn^（2＋）（or Cu^（2＋）） solution is added into compound-Bi^（3＋）system,because of the synergy influence of the Sn^（2＋）（or Cu^（2＋）） and Bi^（3＋）,the strong absorption peak red shift from 290-300 nm to 313-322 nm in UV spectroscopy;the strong absorption peak red shifts and the peak intensity enhances inconspicuously,with the increasement of the concentration of Sn^（2＋）（or Cu^（2＋））.