The novel azacrowned phthalimide 1 has been prepared and its fluorescence properties have been investigated by addition of EtOH and Ag+. The phthalimide 1 showed appreciable solvatofluorochromism; its fluorescence maxima (λFL) appeared in the wavelength region between 458 (in Et2O) and 544 nm (in EtOH). In benzene, the phthalimide 1 gave off blue emission (λFL 466 nm) while it emitted green fluorescence (λFL 497 nm) upon addition of 250 mM of EtOH. Both the blue and the green emissions were quenched by Ag+. Potential logic operations of the phthalimide 1 were examined using fluorescence outputs at 450 (Out1) and 515 nm (Out2) and two input stimuli, EtOH (In1) and Ag+ (In2). The Out1 was on in the absence of these inputs while its intensity was reduced (off) by either or both of the inputs to serve as a NOR operator. The Out2 was off without the inputs; in contrast, the intensity of Out2 was enhanced (on) by In1. The enhanced Out2 was switched off by In2. The Out2, thus, corresponds to an INHIBIT operation responding to the input signals. The crowned phthalimide 1 mimics a two-input–two-output combinational logic gate with a single fluorophore and a single ion-sensing unit.
我们制备了新型偶氮冠化邻苯二甲
酰亚胺 1,并通过添加 EtOH 和 Ag+ 对其荧光特性进行了研究。邻苯二甲
酰亚胺 1 显示出明显的溶解
氟色性;其荧光最大值(λFL)出现在 458 nm(在 Et2O 中)和 544 nm(在 EtOH 中)之间的波长区域。在苯中,邻苯二甲
酰亚胺 1 发出蓝色荧光(λFL 466 nm),而加入 250 mM 的 EtOH 后则发出绿色荧光(λFL 497 nm)。蓝色和绿色发射均被 Ag+ 熄灭。利用 450 (Out1) 和 515 nm (Out2) 波长的荧光输出以及两种输入刺激(EtOH (In1) 和 Ag+ (In2))对邻苯二甲
酰亚胺 1 的潜在逻辑运算进行了检验。在没有这些输入刺激的情况下,Out1 亮起,而其强度会因任一或两种输入刺激而降低(熄灭),作为 NOR 运算符。在没有这些输入的情况下,Out2 处于关闭状态;与此相反,Out2 的强度在 In1 的作用下增强(开启)。增强后的 Out2 由 In2 关闭。因此,Out2 相当于对输入信号做出反应的 INHI
BIT 运算。冠状邻苯二甲
酰亚胺 1 利用单个荧光体和单个离子感应单元模拟了一个两输入两输出组合逻辑门。