Die Kristallstruktur des Lithium-Succinats

Crystals of lithium succinate, (CH₂COOLi)₂, are trigonal (space group R3) with 9 formula units in the hexagonal unit cell. The cell parameters are a = 12.026 and c = 10.625 Å. The structure was determined by direct methods and refined with anisotropic temperature factors by full-matrix least-squares procedures. The final R value for 1049 independent reflexions is 0.039. The succinate ion has a centre of symmetry between the central C atoms. The C—C distances are 1.525 and 1.518 Å. Four oxygen atoms form a slightly deformed tetrahedron around the Li ion with Li—O distances ranging between 1.943 and 1.961 Å.