Knowledge Bank

The microwave spectrum of $HNO3-HCI$ has been obtained via pulsed nozzle Fourier transform microwave spectroscopy. The spectrum is consistent with a planer or near-planer structure in which the $HNO3$. hydrogen bonds to the chlorine and the O-H vector is nearly perpendicular to the H-CI bond. Preliminary analysis indicates a hydrogen bond length of about 2.3 A, which is similiar to that in HCl-HF. The structure is compared with those of $HNO3-NH3$ and $HNO3-H2O$, both of which have been previously studied in our laboratory.