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Your search keyword '"Francesco Paolo Colonna"' showing total 8 results
Start Over Author "Francesco Paolo Colonna" Journal chemischer informationsdienst
8 results on '"Francesco Paolo Colonna"'

1. ChemInform Abstract: FURYL- AND THIENYLMERCURY DERIVATIVES STUDIED BY MEANS OF ULTRAVIOLET PHOTOELECTRON SPECTROSCOPY. EVIDENCE FOR THE PARTICIPATION IN BONDING OF THE VACANT 6PΠ ORBITALS OF MERCURY IN BIS(2-FURYL)- AND BIS(2-THIENYL)MERCURY

Author

G. Distefano, Francesco Paolo Colonna, Alberto Modelli, Derek Jones, and Maurizio Guerra

Subjects
Atomic orbital, Chemistry, chemistry.chemical_element, General Medicine, Photochemistry, Ultraviolet photoelectron spectroscopy, Mercury (element)
Published
1980
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4. ChemInform Abstract: IONIZATION ENERGIES OF SOME AMINES AND ENAMINES AND AN ESTIMATION OF THEIR RELATIVE BASICITY IN GASEOUS PHASE

Author

Francesco Paolo Colonna, Giuseppe Distefano, Salvatore Pignataro, Ennio Valentin, and Giuliana Pitacco

Subjects
chemistry.chemical_compound, Aqueous solution, chemistry, Morpholine, Solvation, chemistry.chemical_element, Physical chemistry, General Medicine, Piperidine, Ionization energy, Nitrogen, Lone pair, Pyrrolidine
Abstract

The ionization energy (i.e.) values for electrons in the π MOs of some tertiary amines and enemines derived from morpholine, piperidine and pyrrolidine have been determined by u.v. photoelectron spectroscopy. The effects of structural changes are discussed. The nitrogen lone pair i.e. value is taken as a measure of basicity of amines and enamines in the gas phase. The relative order of basicity is secondary amines < tertiary amines < enamines. This order differs from that found in aqueous solution probably because of solvation effects in the latter.

Published
1975
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