Molecular structure of pyridine-<i>N</i>-oxide

Abstract

The molecular structure of pyridine-N-oxide has been determined by gas phase electron diffraction. The internuclear distances and bond angles were obtained by applying a least squares analysis on the experimental molecular intensity. The bond distances (rg) and angles (ra) were N1–C2=1.384±0.011 Å; C2–C3=1.381±0.009 Å; C3–C4=1.393±0.008 Å; N1–O7=1.290±0.015 Å; C–H=1.070 Å; ∠C2N1C6=120.9± 1.8°; ∠C3C4C5=114.1± 2.5°. The calculated moments of inertia agree with the microwave spectroscopic values.