Spectroscopic Study of benzene molecular
AbstractThe mid Infrared, Near infrared, visible, and Ultra-violet spectra of Benzene
molecule have been studied. Since Benzene molecule belongs to D6h point group,
with very high symmetry elements, therefore it may be expected for its external
vibrations to be either infrared or Raman active only. The mid infrared spectrum of
the molecule shows only the active infrared fundamental and combination bands.
However no overtone bands have been detected within this region because of its
symmetry. The ultra -violet region shows cut off starting at (350 nm) due to
d d* and π π* electronic transitions. However no absorption has been
observed within visible region (400-800)nm, which is confirmed since pure benzene
liquid has no color.
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