A simple organic molecule of 2-naphthol-1-aldehyde-conjugated thiourea (denoted as receptor 1) is designed and prepared. Absorption and fluorescence spectra response profiles of receptor 1 with different ionic inputs vary significantly in a DMSOâH2O solution (V/V = 9â:â1) through modulating intramolecular charge transfer (ICT) processes. In particular, the changes of the dual-modal spectra when anions, such as Fâ, AcOâ or H2PO4â, are introduced in such an aqueous solution indicate that receptor 1 could be tolerant to H2O at least to some extent in recognizing anions. On the basis of the above results, binary logic operations (OR, NOR and INHIBIT) and their multiply-logic functions with different combinations have been achieved at the molecular level by changing different chemical inputs. The output signals can be encoded as absorption and fluorescence dual-mode, depending on the choice of 2-naphthol as the chromophore and fluorophore core.
设计并制备了一种简单的
2-萘酚-1-醛共轭
硫脲有机分子(称为受体 1)。在
DMSOâ
H2O 溶液(V/V = 9â:â1)中,受体 1 在不同离子输入下的吸收和荧光光谱响应曲线会通过调节分子内电荷转移(ICT)过程而发生显著变化。特别是,在这种
水溶液中引入 Fâ、AcOâ或 H2PO4â等阴离子时,双模态光谱的变化表明,受体 1 在识别阴离子时至少在一定程度上可以耐受 。在上述结果的基础上,通过改变不同的
化学输入,在分子
水平上实现了二进制逻辑运算(OR、NOR 和 INHI
BIT)及其不同组合的多重逻辑功能。根据选择
2-萘酚作为发色团和荧光团核心,输出信号可编码为吸收和荧光双模式。