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Substituent Effects in Thiophenes

Igor Novak ; Department of Chemistry, National University of Singapore, Singapore 0511, Singapore


Puni tekst: engleski pdf 5.224 Kb

str. 399-402

preuzimanja: 224

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Sažetak

He I and He II photoelectron spectra (UPS) of 2-acetyl and 2-cyano thiophene have been measured. The electronic strucutre of the title compounds and, in particular, the effect of substituents on the thiophene % orbitals is discussed on the basis of band widths, He I/He II intensities and semi-empirical MO calculations. Definite assignments are given for the two molecules, thus completing the previous work. The available results on 2- and 3-monosubstituted thiophenes have been compiled and rationalized.

Ključne riječi

Hrčak ID:

136761

URI

https://hrcak.srce.hr/136761

Posjeta: 400 *