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IR (Infra Red Spectrophotometer)
Infrared (IR) spectroscopy measures the bond vibration
frequencies in a molecule and is used to determine the
functional group((--
OH, -CHOH, -CH22-, -CH-, -CH33,-C=O, CHO, aromatics,,-C=O, CHO, aromatics,
etc)etc)
Shimadzu 8201 PCShimadzu 8201 PC
Chapter 12 5
The IR Region
Just below red in the visible region.
Wavelengths usually 2.5-25 µm.
More common units are wavenumbers, or cm-1
, the
reciprocal of the wavelength in centimeters.
Wavenumbers are proportional to frequency and
energy. =>
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Ir

  • 1.
  • 2. IR (Infra Red Spectrophotometer) Infrared (IR) spectroscopy measures the bond vibration frequencies in a molecule and is used to determine the functional group((-- OH, -CHOH, -CH22-, -CH-, -CH33,-C=O, CHO, aromatics,,-C=O, CHO, aromatics, etc)etc) Shimadzu 8201 PCShimadzu 8201 PC
  • 3.
  • 4.
  • 5. Chapter 12 5 The IR Region Just below red in the visible region. Wavelengths usually 2.5-25 µm. More common units are wavenumbers, or cm-1 , the reciprocal of the wavelength in centimeters. Wavenumbers are proportional to frequency and energy. =>