Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. Reference of 16415-12-6, The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis. 16415-12-6, Name is Hexadecyltrimethoxysilane, SMILES is CO[Si](OC)(CCCCCCCCCCCCCCCC)OC, belongs to naphthyridine compound. In a article, author is Chahal, Mandeep K., introduce new discover of the category.
Four new 2-amino-5,7-dimethyl-1,8-naphthyridine derivatives (1-4) possessing urea, amide-imidazolium salt, amide-azide, or amide-triazole moieties were synthesized in good to excellent yields by derivatization of 2-amino-5,7-dimethyl-1,8-naphthyridine. We examined their anion recognition abilities towards different anions such as fluoride, chloride, bromide, iodide, nitrate, dihydrogen phosphate, cyanide, hexafluorophosphate, perchlorate, hydrogen sulphate and acetate by H-1 NMR and UV-Vis spectroscopy. Among various 2-amino-5,7-dimethyl-1,8-naphthyridine derivatives, only 1a and 2 showed spectroscopic and colorimetric change when treated with fluoride ions among other anions. The F- ions first established a hydrogen-bonding interaction with 1a to give the most stable 1:1 complex and then, after addition of a second equivalent, the F- ions induced urea deprotonation due to the formation of HF2-. Moreover, 2 underwent deprotonation of amide -NH proton after the addition of 1 equiv. of fluoride ions. The action of the probes was thoroughly investigated by DFT calculations that also supported the H-bonding induced deprotonation sensing mechanism.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem