Question

Microwave inactive molecule

Answer 1

★ Answer :

Gross Selection Rule: molecules with permanent dipoles are microwave active (the molecule must be polar), e.g. heteronuclear diatomics - HCl, CO, NO, etc. Homonuclear diatomics are microwave inactive (e.g. O2, N2, etc.) In other words, a dipole must be present in the molecule for you to get a rotational spectrum.

Answer 2

Answer:

Gross Selection Rule: molecules with permanent dipoles are microwave active (the molecule must be polar), e.g. heteronuclear diatomics - HCl, CO, NO, etc. Homonuclear diatomics are microwave inactive (e.g. O2, N2, etc.) In other words, a dipole must be present in the molecule for you to get a rotational spectrum.