Ionization and tautomerism of methyl fluorescein and related dyes
作者:Nikolay O. Mchedlov-Petrossyan、Tatyana A. Cheipesh、Sergey V. Shekhovtsov、Andrey N. Redko、Vladimir I. Rybachenko、Irina V. Omelchenko、Oleg V. Shishkin
DOI:10.1016/j.saa.2015.05.037
日期:2015.11
nuclear magnetic resonance and infrared spectroscopy, as well as the X-ray analysis confirm the predomination of the lactonic structure of the molecular species in solid state and in DMSO. Contrary to it, the spectroscopicstudies in both hydrogen-donor bond (HDB) and non-HBD solvents confirm that the presence of lactonic monoanion is atypical for the dye under study and, with high probability, also