Infrared and electronic absorption spectra of some trisubstituted benzenes |
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| Institution: | 1. Coherent Light and Atomic and Molecular Spectroscopy Laboratory, College of Physics, Jilin University, Changchun 130012, People''s Republic of China;2. Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, People''s Republic of China;3. College of Aviation foundation, Aviation University of Air Force, Changchun 130012, People''s Republic of China;4. School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States |
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| Abstract: | The electronic absorption spectra of 2,3-, 2,4-, 2,5-, 2,6- and 3,4-difluorobenzonitriles, 3,4-difluoroaniline and 3,4-difluoroanisole in the ultraviolet region in vapour phase have been recorded on medium quartz and Hilger large quartz spectrographs and on a Hitachi model 150-20 UV-VIS ratio recording spectrophotometer. All the molecules investigated have exhibited two π* ← π band systems corresponding to 1B2u ← 1A1g (λ2600 Å) and 1B1u ← 1A1g (λ2100 Å) systems of benzene. The infrared absorption spectra of all the molecules studied have also been recorded and analysed. These infrared data have been taken to help analyse the u.v. spectra of the molecules studied. |
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