Orders of Magnitude and Symmetry in Molecular Spectroscopy
نویسنده
چکیده
Considerations of the order of magnitude and the symmetry of various intramolecular interactions formthe foundation of molecular spectroscopy. They are related and they together make molecular spectroscopy transparentand tidy. In this chapter, they are discussed starting from the very fundamental. The order of magnitude has not beendiscussed in any previous textbooks of molecular spectroscopy. The symmetry has been discussed in many textbooks anddiscussions here are limited to the rotational and nuclear spin states and its application to forbidden rotational transitionsand the stability of nuclear spin modifications (ortho-, paraetc.).
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