Infrared spectra of chalcone analogs containing the selenophene nucleus

Autor:	Yu. S. Rozum, V. D. Orlov, V. F. Lavrushin, S. V. Tsukerman
Rok vydání:	1972
Předmět:	Chalcone Infrared Chemistry Radical Organic Chemistry Infrared spectroscopy Photochemistry Spectral line chemistry.chemical_compound Crystallography Linear relationship medicine.anatomical_structure Thiophene medicine Nucleus
Zdroj:	Chemistry of Heterocyclic Compounds. 5:461-466
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf00470258
Popis:	The IR spectra of 30 chalcone analogs containing a selenophene nucleus have been measured in the 1800-500 cm−1 region and an assignment of frequencies has been carried out. It has been confirmed that the selenophene radical in the static state has a greater electrondonating influence than the furyl and thienyl radicals. A linear relationship has been found between the shift of the frequency of the stretching vibrations of the carbonyl (ΔvC=O) under the influence of substituents in the 1-(selenien-2-yl)-3-arylpropenones and the σ parameters of Hammett's equation. The absorption curve of analogous compounds of the selenophene and thiophene series have been compared. The PMR spectra of selenophene, the isomeric 1-(selenien-2-yl)-3-phenylpropenones, and their thiophene analogs have been obtained.
Databáze:	OpenAIRE
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