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Why molecules absorb infrared radiation

Why molecules absorb infrared radiation

Molecular vibrations showing stretching and bending, plus IR-active HCl stretching and IR-inactive O_2 stretching

Covalent bonds are not fixed rods. They vibrate by stretching and bending, and infrared spectroscopy measures which of these vibrations absorb infrared radiation.

Infrared spectroscopy Lesson

  1. AS Level
  2. /Chemistry
  3. /Infrared spectroscopy

Step-by-step lessons covering Edexcel AS Level Chemistry Infrared spectroscopy for AS Level Chemistry. Each lesson works through exam-style questions.

Lessons