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IJPAP Vol.45(07) [July 2007] >


Title: High resolution electronic absorption spectrum of 1, 3, 5-trifluorobenzene
Authors: Tiwari, R P
Thakur, S N
Singh, R A
Keywords: Electronic spectrum
Vibronic perturbations
Symmetric trifluorobenzene
Issue Date: Jul-2007
Publisher: CSIR
IPC CodeG01J 3/42
Abstract: The near ultraviolet electronic absorption spectrum of 1,3,5 trifluorobenzene has been photographed on a 10.6 m concave grating spectrograph. The electronic forbidden transition ¹A'₂ ← ¹A'₁ is explained as arising due to perturbation of the electronic state by non-totally symmetric vibration ν₆. Besides ν₆, the other modes of e' species ν₈, ν₉, ν₁₈, and ν₁₉ are also active and give rise to false origins. The vibrational frequencies for ν₉, ν₁₈, ν₁₉, ν₈, ν₁₃, ν₁ and ν₁₆ modes in the first electronic excited state ¹A'₂ are reported for the first time.
Page(s): 569-572
ISSN: 0019-5596
Source:IJPAP Vol.45(07) [July 2007]

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