Principal difference between classical "orbitings" and quaibound complexes (QCs).
Fractions of QCs in binary collisions of different linear molecules as a function of rotational quantum number.
Influence of QCs on rotational R-T relaxation and vibration–rotational spectral line broadening; explicit formulae presented.
Importance of including QCs in any theoretical modeling of spectroscopic manifestation of intermolecular interactions.
Possible manifestation of non-impact effects in central regions of spectral lines due to QCs.