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Raman spectroscopy was employed for evidencing the protonated and unprotonated thiamine molecular species in aqueous solutions at different acid and basic pH. The recorded Raman spectra were assigned on the basis of density functional theory (DFT) calculations. Also, at different pH values of the gold sol, the adsorption of the two molecular species to colloidal metal particles was monitored by means...
The potassium crown-ether thiophosphate, [K(18-crown-6)] 2 [P 2 S 6 ]·2 CH 3 CN, has been obtained by the reaction of K 2 P 2 S 6 with 18-crown-6 in acetonitrile. The title compound adopts a molecular array of [K(18-crown-6)] 2 [P 2 S 6 ] wherein two K(18-crown-6) units are linked by the P 2 S 6 group....
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