Resonance Raman investigation of  trans ‐azobenzene in the lowest energy  1  A   u   excited state | Zendy

Biancalana A. | Zendy; Campani E. | Zendy; Di Domenico G. | Zendy; Gorini G. | Zendy; Masetti G. | Zendy

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Resonance Raman investigation of trans ‐azobenzene in the lowest energy 1 A u excited state

Author(s) -

Biancalana A.,

Campani E.,

Di Domenico G.,

Gorini G.,

Masetti G.

Publication year - 1993

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250240106

Subject(s) - excited state , raman spectroscopy , resonance (particle physics) , absorption (acoustics) , azobenzene , absorption band , excitation , chemistry , molecular electronic transition , absorption spectroscopy , analytical chemistry (journal) , atomic physics , photochemistry , materials science , optics , molecule , physics , composite material , organic chemistry , quantum mechanics , chromatography

The excitation profiles of several Raman bands of trans ‐azobenzene solution in carbon tetrachloride were measured in resonance with the first allowed electronic transition peaked around 320 nm. The experimental results were analysed by means of a multi‐mode Franck–Condon model to obtain some excited state molecular parameters; such parameters were found to reproduce well the red side of the absorption band whereas some inconsistencies between experiment and calculation persist on the UV side. This has been tentatively explained as due to the contribution of a higher energy electronic state whose absorption band is peaked around 287 nm and which may slightly affect the parameters obtained.

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