中文摘要：

以硫杂杯[4]芳烃为母体,在其1,3-位连接羟乙基邻苯二甲酰亚胺,2,4-位以三氮唑为连接基,将苄基引入硫杂杯[4]芳烃的下沿,得到硫杂杯[4]-邻苯二甲酰亚胺衍生物荧光探针（s1）。探针s1发射强烈荧光,在CH_3CN介质中的相对荧光量子产率为0.43。在DMF/H_2O介质中,以310nm为激发波长,Fe^3＋能选择性猝灭探针s1在390nm处的荧光;在CH_3CN介质中,以245nm为激发波长,I^-能选择性猝灭探针s1在310nm处的荧光,光谱滴定和等温滴定量热均测出探针s1与Fe^3＋或与I^-形成1∶1配合物,结合常数均达105。结合自由能表明配合为自发过程。荧光猝灭检测Fe^3＋和I^-的浓度线性范围分别为1.0×10^-7~1.6×10^-4 mol·L^-1和1.0×10^-7~8.5×10^-5 mol·L^-1,检测限分别为2.30×10^-8 mol·L^-1和1.17×10^-8 mol·L^-1。同时,利用识别和竞争配合作用,控制Fe^3＋和F^-的输入使探针s1发射荧光或荧光猝灭,构建了分子水平上的逻辑电路。红外光谱推测探针s1分子中三氮唑基的氮原子参与了识别Fe^3＋的配位,而探针s1分子中三氮唑环上的芳氢与I^-形成氢键而实现识别。

英文摘要：

A disubstituted phthalimide-based thiacalix[4]arene derivative（probe s1）was synthesized from cone 1,3-thiacalix[4]arene and hydroxyethyl phthalimide,with benzyl appended the lower edge of thiacalix[4]-arene by triazole ring in the 2,4position.The relative fluorescence quantum yield of probe s1 is 0.43 in CH_3CN solvent.The strong fluorescence emission of probe s1 at 390nm wavelength can be selectively quenched by Fe^3＋in DMF/H_2 O solution.Similarly,the presence of I^-also induced a significant fluorescence quenching of probe s1 at 310nm wavelength in CH_3 CN solution.Spectral titration and isothermal titration calorimetry were showed that probe s1 with Fe^3＋or I^-both form 1∶1complexes,the binding constants up to 105 and coordinate process were spontaneous.The linear ranges of fluorescence detect Fe^3＋or I^-were 1.0×10^-7~1.6×10^-4 mol·L^-1 and1.0×10^-7~8.5×10^-5 mol·L^-1,detection limits were up to 2.30×10^-8 mol·L^-1 and 1.17×10^-8 mol·L^-1,respectively.Meanwhile,take advantage of identification and coordination action,a logic circuit constructed at the molecular level by controlling two input signals of Fe^3＋and F^-,which causing probe s1 cycling of fluorescence emission or quenching.IR spectrum speculated that the nitrogen atoms of triazole groups are involved in the complexation with Fe^3＋,while the hydrogen atoms of triazole groups were complexed with I^-by hydrogen bonding.