Optical Spectroscopy in Emission Measurements

  • Heikki Torvela


The energy of molecules is the sum of translational, rotational, vibrational and electronic energies:
$$ {E_{{\text{mol}}}}{\text{ = }}{E_{{\text{trans}}}}{\text{ + }}{E_{{\text{rot}}}}{\text{ + }}{E_{{\text{vib}}}}{\text{ + }}{E_{{\text{el}}}} $$
From the point of view of the molecular spectra, translational energy E trans is not of considerable importance, and can be neglected [101]. Rotational energy can have some significance, above all in small molecules in a gaseous state, which can rotate relatively freely.


Methane Dust Sulphide Mercury Benzene 


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Copyright information

© Springer-Verlag London 1994

Authors and Affiliations

  • Heikki Torvela
    • 1
  1. 1.EcocenterUniversity of OuluOuluFinland

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