ISSN:
1572-8927
Keywords:
Hydrogen bonding
;
ion association
;
activity coefficients
;
apparent molal heat capacity
;
partial molal volume
;
hydrofluoric acid
;
perchloric acid
;
tetramethylguanidinium fluoride and perchlorate
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Cyclical bifurcated hydrogen bonded structures are proposed for aqueous solutions of hydrofluoric acid and for the bifluoride ion which are consistent with the spectral data. The structure proposed for HF is also applicable to solutions in organic solvents. Raman spectra of tetramethylguanidinium perchlorate suggest that the corresponding Raman spectra of perchloric acid solutions may not be interpreted in terms of a completely dissociated acid. Other evidence including activity coefficient, heat capacity and partial molal volume data suggest that there is some association in relatively dilute perchloric acid solutions between the perchlorate ion and the hydrated proton. This association decreases in concentrated aqueous solutions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00653096
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