Absorption spectra of substituted thianaphthenes

  • M. R. Padhye
  • R. P. Punyarthi


The near ultraviolet absorption spectra of 5-chlorothianaphthene and 7-bromothianaphthene have been investigated in the region 3050 to 2800 Å and 3050 to 2850 Å respectively—corresponding to longest wavelength system. The tentative vibrational assignments are put forward for the prominent bands. The assignment of certain frequencies are discussed with respect to the effect of substitution (Cl or Br) in the phenyl part of the thionaphthene nucleus.


Prominent Band Ultraviolet Absorption Spectrum Short Wavelength Side Longe Wavelength Side Small Difference Frequency 
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Copyright information

© Indian Academy of Sciences 1958

Authors and Affiliations

  • M. R. Padhye
    • 1
  • R. P. Punyarthi
    • 1
  1. 1.Department of Chemical TechnologyUniversity of BombayBombay-19

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