摘要
利用荧光光谱法考察了化合物二对甲基苯磺酸1,4-苯二酚酯对阳离子Fe3+、Mn2+、Nd2+、Ni2+、Hg2+、Zn2+、Cu2+、Co3+和阴离子F-、Cl-、Br-、I-、ClO4-、H2PO4-、AcO-、PhCOO-的识别性能。结果表明,该化合物对阴离子没有识别效果,对Fe3+具有很好的识别能力,其络合常数K值达到1.98×108L/mol。二对甲基苯磺酸1,4-苯二酚酯与Fe3+基本形成1∶2型的络合物。本文从主客体的大小形状匹配及配位识别原子等方面对受体的识别能力进行了讨论,发现了一个独特有趣的夹心三明治结构。
The inclusion interaction of 1,4-benzenediol bis(4-methylbenzenesulfonate) with Fe( Ⅲ ) was investigated by fluorimetric method. The results showed that this host molecule has strong complexation to Fe^3+ . The complex constant of 1,4-benzenediol bis(4-methylbenzenesulfonate) with Fe( Ⅲ ) was 1.98 ×10^8 L/mol. The changes of the spectra indicated that 1,4-benzenediol bis(4-methylbenzenesulfonate) with Fe( Ⅲ ) can form stable 1:2 type complexes. And the mechanism of recognition is discussed, too.
出处
《化学通报》
CAS
CSCD
北大核心
2007年第9期710-714,共5页
Chemistry