Hydrogen bond studies 78. A neutron diffraction study of lithium formate monohydrate, LiHCOO·H2O

The crystal structure of lithium formate monohydrate has been determined from three-dimensional neuiron diffraction data. Two different hydrogen bonds occur in the crystal: an O(W)-H … O(W), 2.896(2) Å bond linking together the water molecules to produce infinite chains, and an O(W)-H … O, 2.714(2) Å bond connecting the water chains to the formate ions. The O-H … O angles are 166.6(3)° and 173.6(3)°, respectively. The water molecules have O-H distances 0.965(4) and 0.976(3) Å, and an H-O-H angle of 107.8(3)°.