Power of a remote hydrogen bond donor: anion recognition and structural consequences revealed by IR spectroscopy.
作者： Masoud Samet , Mohammad Danesh-Yazdi , Alireza Fattahi , Steven R Kass , None
DOI: 10.1021/JO502652Z
关键词: Infrared spectroscopy 、 Hydrogen bond 、 Crystallography 、 Derivative (chemistry) 、 Stereochemistry 、 Ion 、 Tris 、 Trifluoromethyl 、 Chemistry 、 Group (periodic table) 、 Polar
摘要: Natural and synthetic anion receptors are extensively employed, but the structures of their bound complexes difficult to determine in liquid phase. Infrared spectroscopy is used this work characterize solution for first time, surprisingly only two three hydroxyl groups neutral aliphatic triols found directly interact with Cl–. The binding constants these zero CF3 were measured a polar environment, KCD3CN(Cl–) = 1.1 × 106 M–1 tris(trifluoromethyl) derivative. This remarkably large value, high selectivity respect interfering anions such as, Br–, NO3– NCS– also displayed. effects third “noninteracting” on explored, they as or larger than OH substituents that hydrogen bond That is, remote group can play role s...
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