Materials Data on V7O3 by Materials Project
V7O3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent V sites. In the first V site, V is bonded in a linear geometry to two equivalent O atoms. Both V–O bond lengths are 2.22 Å. In the second V site, V is bonded in a distorted T-shaped geometry to three O atoms. There are a spread of V–O bond distances ranging from 2.20–2.22 Å. In the third V site, V is bonded in an L-shaped geometry to two O atoms. There are one shorter (2.20 Å) and one longer (2.22 Å) V–O bond lengths. In the fourth V site, V is bonded in a T-shaped geometry to three O atoms. There are one shorter (2.20 Å) and two longer (2.21 Å) V–O bond lengths. There are two inequivalent O sites. In the first O site, O is bonded to six V atoms to form a mixture of edge and corner-sharing OV6 octahedra. The corner-sharing octahedra tilt angles range from 0–3°. In the second O site, O is bonded to six V atoms to form a mixture of edge and corner-sharing OV6 octahedra. The corner-sharing octahedral tilt angles are 3°.