1 / 18

INFRARED SPECTROSCOPY (IR)

INFRARED SPECTROSCOPY (IR). Infrared Spectroscopy. Chemical bonds absorb energy in the IR region related to the vibration of different bonds.

yaakov
Download Presentation

INFRARED SPECTROSCOPY (IR)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. INFRARED SPECTROSCOPY(IR)

  2. Infrared Spectroscopy Chemical bonds absorb energy in the IR region related to the vibration of different bonds. Infra-red absorbance values are reported as units of wavelength (λ, μm) or more commonly as wave numbers (ν, cm-1) which are related to frequency. ν = 1/λ Ifλis in cm then wave numbers are calculated to be in cm-1. Higher frequency and shorter wavelengths represent higher energy. ~ ~ ~

  3. IR Vibrational Modes Stretching and bending bond vibrational modes.

  4. IR Absorbance Regions Common Bond Stretching Regions in an IR Spectrum:

  5. IR Spectrum: n-hexane

  6. IR Spectrum: di-n-propyl ether

  7. IR Spectrum: 1-hexene

  8. IR Spectrum: 1-octyne

  9. IR Spectrum: 2-octyne

  10. IR Spectrum: 1-butanol

  11. IR Spectrum: di-n-propylamine

  12. IR Spectrum: 2-heptanone

  13. IR Spectrum: butanal

  14. IR Spectrum: methyl benzoate

  15. IR Spectrum: hexanoic acid

  16. IR Spectrum: butanamide

  17. IR Spectrum: butanenitrile

  18. ENDINFRARED SPECTROSCOPY(IR)

More Related