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Some Quantitative Tests of Intermolecular Bonding in Solution—Hydrogen Bonding *
Author(s) -
Giles C. H.,
Gallagher J.,
McIntosh A.,
Nakhwa S. N.
Publication year - 1972
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1972.tb03040.x
Subject(s) - chlorobenzene , chemistry , aqueous solution , hydrogen bond , intermolecular force , phenol , solvent , acetonitrile , molecule , organic chemistry , catalysis
Two refractometric methods, viz. a ‘method of solute excess’ and one based on the method of continuous variations, have been used to measure the equilibrium constant and the heat, free energy, and entropy of hydrogen bonding of pairs of solutes in non‐aqueous and in aqueous solutions. The results agree with published data obtained, e.g., by infrared spectroscopy. Thus, heats of reaction between —2.4 and —3.4 kcal/mol. are obtained for phenol‐chlorobenzene bonding and ca—6 kcal/mol. for phenol‐amide bonds in non‐aqueous or aqueous media. Values appear higher in an aqueous than in a non‐polar solvent. Other systems examined were phenol‐n‐butanol, ethyl acetate‐chlorobenzene, and phenol‐acetonitrile.