Electronic Absorption Spectroscopy

  • Manfred Reichenbächer
  • Jürgen Popp


According to quantum mechanics, the double bonds in conjugated systems are weakened. Conversely single bonds are stronger in the S1 state resulting in changed energy barriers for the rotation around the respective bond in the ground (S0) and first excited state (S1) of a conjugated system; see Fig. 3.21 for the structure moiety aryl–C=C–


Electron Absorption Spectrum Symmetry Class Ground Term Spin Multiplicity Electron Absorption Spectroscopy 
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Further Reading

  1. 1.
    Perkampus H-H (1985) UV/VIS-Spektroskopie und ihre Anwendung. Springer, BerlinGoogle Scholar
  2. 2.
    Fabian J, Hartmann H (1985) Light absorption of organic colorants. Springer, BerlinGoogle Scholar
  3. 3.
    Schläfer HL, Gliemann G (1967) Einführung in die Ligandenfeldtheorie. Akad. Verlagsgesellschaft, LeipzigGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Manfred Reichenbächer
    • 1
  • Jürgen Popp
    • 2
    • 3
  1. 1.Institute of Inorganic and Analytical ChemistryFriedrich-Schiller University JenaJenaGermany
  2. 2.Institute of Physical ChemistryFriedrich-Schiller University JenaJenaGermany
  3. 3.Institute of Photonic TechnologyJenaGermany

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