Rotational spectra isotopic double substitution

In section 2.2 through 2.5 the molecules (radicals are included with references to chapter 4) are ordered according to the type of their respective rotational spectrum as follows Diatomic molecules (2.2), linear molecules (2.3) symmetric top molecules (2.4), and asymmetric top molecules (2.5). Molecules which are asymmetric only due to isotopic substitution are listed together with their parent species in 2.4. The tables include rotational constants, centrifugal distortion constants, rotation-vibration interaction constants, and /-type doubling constants. Some additional molecular constants obtained by microwave type methods have been listed as well. References to publications concerning the molecular structure are cited separately. 

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See also in sourсe #XX -- [ ]

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