Accession Number:

AD0678978

Title:

INFLUENCE DES EFFETS INDUCTIFS ET STERIQUES SUR LA BASICITE DES AMINES TERTIAIRES. DETERMINATION ET INTERPRETATION DES DELTA H ET DES DELTA S (INFLUENCE OF THE INDUCTIVE AND STERIC EFFECTS ON THE BASICITY OF TERTIARY AMINES. DETERMINATION AND INTERPRETATION OF DELTA H AND THE DELTA S.),

Descriptive Note:

Corporate Author:

CANADIAN ARMAMENT RESEARCH AND DEVELOPMENT ESTABLISHMENT QUEBEC

Personal Author(s):

Report Date:

1967-12-26

Pagination or Media Count:

6.0

Abstract:

Delta H and delta S were obtained by pKa measurements in water at different temperatures for a series of dihydroxylated tertiary amines. The thermodynamic factors seem to confirm that the diminution in basicity introduced by long chain substituents is caused by frontal hindrance to solvation, accompanied by a new type of back-strain. With short chain substituents, the formation of intramolecular hydrogen bonds can be seen by the variations of the entropy factor. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE