Vibrational spectroscopic studies on ion solvation of lithium perchlorate in propylene carbonate + N,N-dimethylformamide mixtures.
The infrared (IR) and Raman spectra are reported for solutions of lithium perchlorate in propylene carbonate (PC), N,N-dimethylformamide (DMF) and PC + DMF mixtures. The band splittings of symmetric ring deformation for PC and O=CN deformation for DMF suggest that there is a strong interaction between lithium cations and solvent molecules. The solvent molecules have been assigned to two types, the free and complexed molecules. By a comparison of the intensity for the corresponding bands, it has been concluded that Li+ cations are preferentially solvated by DMF molecules in the LiClO4/PC-DMF solutions. This has been explained by the difference in values of donor number.
Xuan
X
X
School of Chemical and Environmental Sciences, Henan Normal University, Xinxiang, Henan, People's Republic of China.
Wang
J
J
Tang
J
J
Qu
G
G
Lu
J
J
D002254:Carbonates / Q000737:chemistry*; D004126:Dimethylformamide / Q000737:chemistry*; D004563:Electrochemistry; D018020:Lithium Compounds / Q000737:chemistry*; D010472:Perchlorates / Q000737:chemistry*; D011407:Propane / Q000031:analogs & derivatives; D012996:Solutions / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
D002254:Carbonates; D018020:Lithium Compounds; D010472:Perchlorates; D012996:Solutions; D004126:Dimethylformamide; C045990:propylene carbonate; C054684:lithium perchlorate; D011407:Propane