Crystal structure of 3-bromo­pyridine N-oxide

In the title compound, C(5)H(4)BrNO, there are two mol­ecules in the asymmetric unit that are related by a pseudo-inversion center. The two independent mol­ecules are approximately planar, with an observed (ring–ring) angle of 5.49 (13)°. The crystal structure exhibits a herringbone pattern with the zigzag running along the b-axis direction. The least-squares plane containing the rings of both asymmetric molecules and the plane containing the symmetrically related mol­ecules make a plane–plane angle of 66.69 (10)°, which makes the bend of the herringbone pattern. The bromo group on one mol­ecule points to the bromo group on the neighboring mol­ecule, with a Br⋯Br inter­molecular distance of 4.0408 (16) Å. The herringbone layer-to-layer distance is 3.431 (4) Å with a shift of 1.742 (7) Å. There are no short contacts, hydrogen bonds, or π–π inter­actions.