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7748828 
Journal Article 
ATTENUATED TOTAL REFLECTION FOURIER-TRANSFORM INFRARED SPECTROSCOPIC STUDY OF ION SOLVENT AND ION ION INTERACTIONS IN LITHIUM PERCHLORATE NITROMETHANE SOLUTIONS 
Faguy, PW; Fawcett, WR; Patrick, DL 
1991 
Yes 
Journal of the Chemical Society. Faraday Transactions
ISSN: 0956-5000 
ROYAL SOC CHEMISTRY 
CAMBRIDGE 
87 
18 
2961-2965 
English 
WOS:A1991GG95500017 
Lithium perchlorate solutions in nitromethane, 0.04-0.18 mol dm-3, have been investigated using attenuated total reflection Fourier-transform infrared (ATR FTIR) spectroscopy. Despite the relatively poor electron-donating ability of nitromethane, some evidence for lithium ion coordination is seen. Frequency shifts for the symmetric NO2 stretching fundamental of +7 cm-1, and for the symmetric CH3 bending fundamental of +2 cm-1 are found for nitromethane complexed to the alkali-metal cation. The infrared-active absorption for the ClO4- anion at 1100 cm-1 shows substantial splitting, an effect due to the extensive ion-pairing of the solute species. The distribution and relative concentrations of the different electrolyte species were found to be concentration dependent.