Molecular g values, magnetic susceptibility anisotropies, and molecular quadrupole moments in 15N2–HF, 15N2–DF, OC–HF, OC–DF, and OC–HCl van der Waals complexes

The rotational spectrum of 15N2–DF, the rotational Stark effect in 15N2–HF, and the rotational Zeeman effect in OC–HF, OC–DF, 15N2–HF, 15N2–DF, and OC–HCl van der Waals complexes have been studied using pulsed Fourier transform microwave spectroscopy carried out in a Fabry–Perot cavity. The following spectroscopic constants have been obtained in this study: The Zeeman parameters are used to obtain the molecular quadrupole moments. The bulk magnetic susceptibility is estimated and the diamagnetic susceptibilities are calculated. The relationships between the Zeeman parameters measured for the complex and those of the free monomers are discussed. We observe that a simple zero order projection equation for g⊥ and χ∥–χ⊥ is reproducing the experimental values quite well.