NUCLEAR MAGNETIC RESONANCE STUDIES: VIII. DETERMINATION OF THE THERMODYNAMIC PARAMETERS GOVERNING ASSOCIATIONS OF SUBSTITUTED BENZALDEHYDES IN TOLUENE SOLUTION

Autor:	R. E. Klinck, J. B. Stothers
Rok vydání:	1966
Předmět:	chemistry.chemical_compound Nuclear magnetic resonance chemistry Proton Chemical shift Organic Chemistry General Chemistry Toluene Catalysis
Zdroj:	Canadian Journal of Chemistry. 44:37-44
ISSN:	1480-3291 0008-4042
DOI:	10.1139/v66-007
Popis:	The temperature dependence of the proton chemical shifts of four substituted benzaldehydes in toluene solution has been measured. From these results, estimates have been made of the enthalpies and entropies of formation of the stereospecific solute–solvent complexes which were previously shown to exist in these systems. These calculations indicate that the ΔH and ΔS values are −0.9 ± 0.2 kcal/mole and −4.9 ± 1.3 e.u., respectively. No correlation with substitution is apparent; the results are compared with other available data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c0b37cb17e5780fc363b1f5a7df7b579 https://doi.org/10.1139/v66-007 Zobrazit plný text záznamu