The author of 《Chemically and Mechanically Controlled Single-Molecule Switches Using Spiropyrans》 were Walkey, Mark C.; Peiris, Chandramalika R.; Ciampi, Simone; C. Aragones, Albert; Dominguez-Espindola, Ruth B.; Jago, David; Pulbrook, Thea; Skelton, Brian W.; Sobolev, Alexandre N.; Diez Perez, Ismael; Piggott, Matthew J.; Koutsantonis, George A.; Darwish, Nadim. And the article was published in ACS Applied Materials & Interfaces in 2019. Electric Literature of C5H4IN The author mentioned the following in the article:
Developing mol. circuits that can function as the active components in elec. devices is an ongoing challenge in mol. electronics. It demands mech. stability of the single-mol. circuit while simultaneously being responsive to external stimuli mimicking the operation of conventional electronic components. Here, we report single-mol. circuits based on spiropyran derivatives that respond elec. to chem. and mech. stimuli. The merocyanine that results from the protonation/ring-opening of the spiropyran form showed single-mol. diode characteristics, with an average current rectification ratio of 5 at ±1 V, favoring the orientation where the pos. charged end of the mol. is attached to the neg. terminal of the circuit. Mech. pulling of a single spiropyran mol. drives a switch to a more conducting merocyanine state. The mech. switching is enabled by the strong Au-C covalent bonding between the mol. and the electrodes, which allows the tensile force delivered by the STM piezo to break the mol. at its spiropyran C-O bond. In addition to this study using 4-Iodopyridine, there are many other studies that have used 4-Iodopyridine(cas: 15854-87-2Electric Literature of C5H4IN) was used in this study.
4-Iodopyridine(cas: 15854-87-2) is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists. 4-Iodopyridine is a halogenated heterocycle that is a building block for proteomics research.Electric Literature of C5H4IN
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com