Infrared spectroscopic studies of substituted 1,2-diphenylcyclopropenes

For the investigation of the character of a substituent at position 3 of the ring and the double bond, i.r. spectra of substituted 1,2-diphenilcyclopropenes were studied. Frequencies and integral intensities of the double bond stretching vibration band were determined. It was proved that changes of...

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Bibliographic Details
Published in:Spectrochimica acta. Part A: Molecular spectroscopy 1989, Vol.45 (6), p.695-696
Main Authors: Boyarskaya, I.A., Domnin, I.N., Akopyan, S.Kh
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Infrared spectra
Molecular properties and interactions with photons
Molecular spectra
Physics
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Summary:For the investigation of the character of a substituent at position 3 of the ring and the double bond, i.r. spectra of substituted 1,2-diphenilcyclopropenes were studied. Frequencies and integral intensities of the double bond stretching vibration band were determined. It was proved that changes of the band's parameters caused by intermolecular interactions are substantially smaller than effects observed by changing the substituent. On the basis of correlation between changes of intensities of the ν CC band and resonance constants of substituents and the character of the frequency dependence, a conclusion was reached on the resonance interactions of the substituent with σ Walsh —MO of the cycle.
ISSN:0584-8539
DOI:10.1016/0584-8539(89)80179-5