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Light and Cation-Driven Optical Switch based on a Stilbene-Appended Terpyridine System for the Design of Molecular-Scale Logic Devices
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2021-09-10 , DOI: 10.1021/acs.jpca.1c06524 Shruti Mukherjee 1 , Anik Sahoo 1 , Sourav Deb 1 , Sujoy Baitalik 1
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2021-09-10 , DOI: 10.1021/acs.jpca.1c06524 Shruti Mukherjee 1 , Anik Sahoo 1 , Sourav Deb 1 , Sujoy Baitalik 1
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A molecular system comprising a terpyridine moiety capable of coordinating with different cations and a photoswitchable stilbene unit has been utilized here for the fabrication of multiply configurable logic systems. Incorporation of a substituted stilbene unit into the terpyridine motif generates an intraligand charge-transfer-sensitive module whose absorption and emission spectral properties are highly sensitive to light as well as cations. On the basis of the optical response profile of the receptor in the presence of selected cations as well as light of a specific wavelength, we are able to demonstrate multiple Boolean logic functions such as INHIBIT, IMPLICATION, OR, NOR, and NAND, as well as various combinations of them. Of particular interest, we utilized the present system for the construction of security keypad locks and memory devices by maintaining a proper sequence of the stimuli and monitoring either absorption or emission spectral response at a specific wavelength as the output signal. In addition to various Boolean logic functions, the present system has also the ability to mimic fuzzy logic operations for generating an infinite-valued logic scheme depending on its emission spectral responses upon varying the concentration of cationic (Fe2+ and/or Zn2+) and anionic (CN–) inputs.
中文翻译：
用于分子级逻辑器件设计的基于二苯乙烯附加三联吡啶系统的光和阳离子驱动光开关
包含能够与不同阳离子配位的三联吡啶部分和光可切换的二苯乙烯单元的分子系统已被用于制造多重可配置逻辑系统。将取代的二苯乙烯单元合并到三联吡啶基序中会产生一个配体内电荷转移敏感模块，其吸收和发射光谱特性对光和阳离子高度敏感。根据受体在存在选定阳离子和特定波长光的情况下的光学响应曲线，我们能够展示多种布尔逻辑功能，例如 INHIBIT、IMPLICATION、OR、NOR 和 NAND，以及作为它们的各种组合。特别感兴趣的是，我们利用本系统来构建安全键盘锁和存储设备，方法是维持适当的刺激序列并监测特定波长的吸收或发射光谱响应作为输出信号。除了各种布尔逻辑函数之外，本系统还具有模拟模糊逻辑运算的能力，以根据其在改变阳离子 (Fe) 浓度时的发射光谱响应生成无限值逻辑方案2+和/或 Zn 2+ ) 和阴离子 (CN – ) 输入。
更新日期：2021-09-23
中文翻译：
用于分子级逻辑器件设计的基于二苯乙烯附加三联吡啶系统的光和阳离子驱动光开关
包含能够与不同阳离子配位的三联吡啶部分和光可切换的二苯乙烯单元的分子系统已被用于制造多重可配置逻辑系统。将取代的二苯乙烯单元合并到三联吡啶基序中会产生一个配体内电荷转移敏感模块，其吸收和发射光谱特性对光和阳离子高度敏感。根据受体在存在选定阳离子和特定波长光的情况下的光学响应曲线，我们能够展示多种布尔逻辑功能，例如 INHIBIT、IMPLICATION、OR、NOR 和 NAND，以及作为它们的各种组合。特别感兴趣的是，我们利用本系统来构建安全键盘锁和存储设备，方法是维持适当的刺激序列并监测特定波长的吸收或发射光谱响应作为输出信号。除了各种布尔逻辑函数之外，本系统还具有模拟模糊逻辑运算的能力，以根据其在改变阳离子 (Fe) 浓度时的发射光谱响应生成无限值逻辑方案2+和/或 Zn 2+ ) 和阴离子 (CN – ) 输入。
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