氧杂杯[2]芳烃[2]三嗪衍生物的合成及其离子识别性能研究

Synthesis and Ion Recognition Properties of Novel Tetraoxacalix [2] Arene [2] Triazine Derivative

以间苯二酚、三聚氯氰和（4-羟基苯基）-（吗啉代）甲酮为原料合成了一个新的标题化合物,并经HR-MS、^1HNMR、^13CNMR、IR、UV-Vis等手段确证了其结构。接着利用荧光光谱法分别考察了它对8种阴离子和10种金属离子的识别性能,结果表明标题化合物可以专属性地识别Fe^3＋,而对其他测试的阴离子和阳离子没有识别作用,同时其他金属离子不影响标题化合物对Fe^3＋的识别。利用推导的新非线性拟合方程计算得到标题化合物与Fe^3＋形成配合比和配合常数分别为1∶1和3.41×10^4mol/L的配合物,并通过核磁共振波谱法初步确证Fe^3＋是结合在标题化合物的两个三嗪环组成的空腔中。

A new tetraoxacalix [2] arene [2] triazine derivative was synthesized by using resorcinol,cyanuric chloride and（4-hydroxyphenyl）-（morpholino） methanone as raw materials,and the structure was confirmed by HR-MS,^1HNMR,^13CNMR,infrared spectrum and UV-Vis spectrum.Moreover,the ion recognition property of the compound to eight anions and ten metal cations was separately investigated by fluorescence spectra.The experimental results showed that the obvious fluorescence quenching of the compound had been observed,when Fe^3＋was added to the acetonitrile solution,but the fluorescence quenching phenomenon did not appear,when other ions were added to that of the compound,and the other metal ions did not also affect the fluorescence quenching caused by Fe^3＋.So Fe^3＋can be selectively recognized by the compound.The stoichiometric ratio and association constant of the complex between Fe^3＋and compound were determined as 1 ∶1 and 3.41×10^4 mol/L by new nonlinear fitting plot.And it was confirmed by ^1HNMR that Fe^3＋is located in the cavity formed by two triazzines of the compound.