Ultraviolet/Visible Spectroscopy

Outline

  1. Background Information

    1. Basics of Ultraviolet Light Absorption

    2. Terminology

    3. Laws of Light Absorption

    4. Measurement of the Spectrum

    5. Presentation of the Spectrum

    6. Solvents for UV/Vis Spectroscopy

    7. UV/Vis Spectroscopy Generalizations

  2. Types of Electronic Transitions

    1. s to s*

    2. p to p*

    3. h to s*

    4. h to p*

  3. Table of Typical Absorptions of Simple Isolated Chromophores

  4. Empirical Rules for Caluclating Uv/Vis Absorptions

    1. Woodward-Fieser Rules for Dienes

    2. Woodward's Rules for Conjugated Carbonyl Compounds

    3. Mono-Substituted Benzene Derivatives

    4. Di-Substituted Benzene Derivatives

    5. Benzoyl Derivatives

    6. Problems

      1. Unknown 1

      2. Unknown 2

      3. Unknown 3

      4. Unknown 4

      5. Unknown 5

    7. Final Note

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