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Full-Text Articles in Physical Sciences and Mathematics
Relative Electronegativities Of The Propyl Groups, Barry Arkin
Relative Electronegativities Of The Propyl Groups, Barry Arkin
Senior Scholar Papers
Vapor pressure determinations in a vacuum line were made first on varied compositions of acetone and pyridine and second on varied compositions of acetone and trimethylamine. These experiments were conducted in the hope of noting a negative deviation from Raoult's Law, which is indicative of adduct formation between the two substances. No such deviation was found in either case. Vapor pressure determinations were then made on varied compositions of 1) acetone and chloroform, 2) 4-heptanone and chloroform, 3) dicyclopropyl ketone and chloroform, and 4) diisopropyl ketone and chloroform. In each of these systems a negative deviation from Raoult's Law was …
Relative Donor Properties Of Various Propyl Ketones In Iodine Solution Using Spectroscopic Methods, Christine Franchi
Relative Donor Properties Of Various Propyl Ketones In Iodine Solution Using Spectroscopic Methods, Christine Franchi
Senior Scholar Papers
Ketones in iodine solution are capable of transferring a nonbonding electron from the carbonyl oxygen to a halogen molecule forming a charge transfer complex. The electron-repelling nature of alkyl groups on either side of the carbonyl contributes to electron density and makes the ketone a better donor. The equilibrium constant of complex formation is an experimental measure of relative donor basicity and a theoretical measure of inductive effects. This study has determined that (1) the difference in inductive nature between a n-propyl and a methyl group is apparently negligible and (2) equilibrium constants may not be correlated with inductive effects …