Karar Monaj, Barkale Harshal V, Vasishtha Sahil D, Dey Nilanjan
MLR Institute of Technology, Hyderabad, Hyderabad, India 500043.
Department of Chemistry, BITS-Pilani, Hyderabad Campus, Hyderabad, India 500078.
J Phys Chem B. 2024 Jul 18;128(28):6684-6692. doi: 10.1021/acs.jpcb.4c01145. Epub 2024 Jul 9.
The paper describes an improved method for building flexible interswitchable logic gates such as rare-type molecular ternary INHIBIT and combinational logic circuits using a specially designed pyridine-end oligo--phenylenevinylene compound featuring alkyl substituents (-CH) in a THF medium. The probe molecule showed distinct opto-chemical signals upon interaction with Cu(II) and Hg(II) in THF medium. It is interesting to note that the presence of certain anions (S, I, and CN) could specifically mask the interaction of either of these metal ions or both. The most exciting thing is that we used a completely new gate design technique to construct a rare-type ternary INHIBIT logic gate using Cu(II), Hg(II), and CN ions as three chemical inputs. With the identical set of chemical inputs, two more ternary combinational logic circuits were created out of these case-specific, independent reversible and irreversible spectroscopic studies. Finally, we were able to design adaptive molecular logic systems composed of several logic gates, including NOR, AND, IMPLICATION, INHIBIT, TRANSFER, and COMPLEMENT, that in this specific situation change the sort of logic sense by effortless optical toggling.
本文描述了一种改进的方法，用于构建灵活的可相互切换逻辑门，例如稀有类型的分子三元禁止门和组合逻辑电路，该方法使用一种在四氢呋喃（THF）介质中具有烷基取代基（-CH）的特殊设计的吡啶端基低聚苯撑乙烯化合物。在THF介质中，该探针分子与铜（II）和汞（II）相互作用时显示出明显的光化学信号。值得注意的是，某些阴离子（硫离子、碘离子和氰根离子）的存在可以特异性地掩盖这些金属离子中的一种或两种的相互作用。最令人兴奋的是，我们使用了一种全新的门设计技术，以铜（II）、汞（II）和氰根离子作为三个化学输入构建了一种稀有类型的三元禁止逻辑门。通过相同的化学输入集，基于这些特定情况、独立的可逆和不可逆光谱研究，又创建了另外两个三元组合逻辑电路。最后，我们能够设计出由多个逻辑门组成的自适应分子逻辑系统，这些逻辑门包括或非门、与门、蕴含门、禁止门、传输门和补码门，在这种特定情况下，通过轻松的光学切换改变逻辑意义的类型。
