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Strong hydrogen bonding in aliphatic diol solutions of alkali-metal fluorides

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JournalJournal of the Chemical Society, Dalton Transactions
DatePublished - 1 Jan 1981
Issue number5
Number of pages5
Pages (from-to)1152-1156
Original languageEnglish

Abstract

Heavy alkali-metal fluorides are soluble in low-molecular-weight liquid aliphatic diols. Low-field shifts in the proton magnetic resonances of selected fluoride-diol solutions may be interpreted as being due largely to strong hydrogen bonding between the fluoride anion and the diol hydroxyls, although cation effects are also evident. Variable-temperature n.m.r. studies on KF-1, 2-ethanediol, CH3CN-1, 2-ethanediol, and neat 1, 2-ethanediol have been carried out and values of -(50 ±10) kJ mol-1 for ΔHe and -{130 ± 25) J K-1 mol-1 for ΔSe have been determined for the (F … HO)- hydrogen bond.

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