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Li(+)-molecule Interactions of Lithium Tetrafluoroborate in Propylene Carbonate + N,N-dimethylformamide Mixtures: An FTIR Spectroscopic Study

Li(+)-molecule Interactions of Lithium Tetrafluoroborate in Propylene Carbonate + N,N-dimethylformamide Mixtures: An FTIR Spectroscopic Study

Binbin Zhang, Yuan Zhou, Xiang Li, Jingying Wang, Gang Li, Qiang Yun, Xiufang Wang

Spectrochim Acta A Mol Biomol Spectrosc. 2014 Apr 24;124:40-5.

PMID: 24463238

Abstract:

FTIR (Fourier transformed infrared) spectra have been collected and analyzed for solutions of lithium tetrafluoroborate in propylene carbonate (PC), N,N-dimethylformamide (DMF), and PC+DMF mixtures. The band splitting and symmetric ring deformation for PC and O=C-N 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 LiBF4/PC+DMF solutions. This has been explained by the difference in values of donor number (DN).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP14283079-A	Lithium tetrafluoroborate		14283-07-9	Price

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