Tian, Tao published the artcileMolecular full-adder and full-subtractor logic circuit based on fluorescein derivatives, COA of Formula: C12H14IN, the publication is Gaodeng Xuexiao Huaxue Xuebao (2015), 36(2), 260-266, database is CAplus.
Over the past decade, there has been significant progress in the development of mol. computer, which has inspired scientists to construct appropriate mol. systems that could integrate simple logic gates into combinatorial circuits. In this work, a novel fluorescein-based QHF+ with five-state mol. switch was synthesized. The conversion of the five states of QHF+ was observed by UV-visible absorption spectra under various pH values in CH3CH2OH/H2O (volume ratio 1:1). Spectral responses with the use of chem. inputs in the form of H+ and OH– revealed that QHF could function as a combinatorial logic circuit (XOR gate and INHIBIT gate, AND gate and XOR gate). Absorbance change at 424 and 490 nm or transmittance change at 424 nm, was monitored as output signals with threshold value of A=0.209 (or T=61.8%). When absorbance intensity or transmittance percentage was more than the threshold value, the output signal was 1. Otherwise, the output value was 0. In conclusion, a full-subtractor was achieved by setting the initial state to QHF0 with outputs at 424 and 490 nm in the absorption mode, while a mol. full-adder was provided by setting the initial state to QHF+ and observing both absorbance at 490 nm and transmittance at 424 nm.
Gaodeng Xuexiao Huaxue Xuebao published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C5H5NO3S, COA of Formula: C12H14IN.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com