【摘要】 自制杯[4]芳烃经多步反应得双氨基(化合物3,4)及双甲酰基(化合物5)杯[4]芳烃衍生物,通过氨基与甲酰基的缩合反应,获得两个新双杯[4]芳烃偶联化合物6、7,1HNMR、13CNMR、FT-IR和MS(Maldi-tof)表征结构。用紫外光谱(UV)初步研究化合物6、7与11种金属离子的作用。结果表明,pH 1～12时,化合物6的UV不受影响,而化合物7的UV在pH>10时出现明显变化;化合物6、7与11种金属离子作用后,其UV在最大吸收(λmax)处的吸收强度都明显降低。此外,化合物7与Cd2+等9种金属离子作用后,λmax还红移了15～20nm。研究还表明,浓度高于0.2 mmol/L时,Cd2+才会使化合物7的UVλmax红移。更多还原

【Abstract】 The calix[4]arene derivatives with bi-amidogen groups(compound 3 and 4)and bi-formyl groups(compound5)were obtained through multiple steps reactions using self-made calix[4]arene as a starting material. Then,two new dicalix[4]arene derivatives compound 6 and 7 were synthesized by condensation reaction between amidogen groups and formyl groups.1 H NMR,13 C NMR,FT-IR and MS(Maldi-tof)characterized their structures. The interactions between compound6 and 7 with eleven kinds of metal ions,respectively,were studied preliminarily using ultraviolet spectrophotometry. Results showed that over the range of pH 1～12,no effect of pH on ultraviolet absorption spectrum(UV)for compound 6 was found,but apparent UV changes for compound 7 appeared when pH rose to higher than pH 10. All absorption intensity at absorption maximum wavelength（λmax）declined obviously after compound 6 and 7 interacted with these studied metal ions.Besides,λmaxoccurred a red shift of 15～20 nm after compound 7 interacted with 9 kinds of metal ions like Cd2+. In addition,only when the concentration of Cd2+was over 0.2 mmol·L-1 could the red shift of λmaxfor compound 7 occur.更多还原