Chemistry A-Level
Wavenumber ranges quoted in cm⁻¹
What Wavenumber ranges quoted in cm⁻¹ means in Chemistry A-Level, as defined for OCR.
Definition of Wavenumber ranges quoted in cm⁻¹
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Reference: OCR
The O–H absorption of an alcohol is quoted as roughly 3200–3600 cm⁻¹, and a C=O absorption near 1700 cm⁻¹ would indicate a carbonyl compound instead.
Topics that use Wavenumber ranges quoted in cm⁻¹
- Analytical techniques (OCR A-Level)
Related terms
- Absorption and re-emission of infrared radiation
- Absorption of infrared radiation
- Absorption of infrared radiation by bond vibrations
- Bond stretching and bending
- Broad peak shape caused by hydrogen bonding
- Change in dipole moment
- Changes to energy usage
- characteristic absorption bands
Using Wavenumber ranges quoted in cm⁻¹ in the exam
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