The title compound has been synthesized by solid-state reaction. Its s
tructure is isomorphous with those of other lithium pyroxenes and is c
omposed of infinite isolated chains of edge-sharing VO6 octahedra link
ed together by corner-sharing SiO4 tetrahedra. These form. a three-dim
ensional framework within which each Li+ ion occupies a highly distort
ed octahedron.