Hydrogen bonding interaction between acetate-based ionic liquid 1-ethyl-3-methylimidazolium acetate and common solvents

The hydrogen bonding interaction between acetate-based ionic liquids (AcILs) 1-ethyl-3-methylimidazolium acetate [EMIM][Ac] and seven solvents (deuterated water D2O, deuterated methanol CD3OD, deuterated acetonitrile CD3CN, deuterated dimethylsulfoxide d(6)-DMSO, deuterated acetone CD3COCD3, deuterated benzene C6D6, and deuterated chloroform CDCl3) was investigated in their whole concentrations by ATR-IR and H-1 NMR. Results show that both [EMIM][Ac] and solvent chemical shifts delta present a different change in the H-1 NMR in different solvents. ATR-IR wavenumber shifts v of [EMIM][Ac] and solvents also present corresponding variation tendency. (C) 2013 Elsevier By. All rights reserved.