Sa. Kim et H. Kuppers, PROTON DISORDER OF WATER-MOLECULES IN THE STRUCTURE OF LITHIUM HYDROGEN CIS-4-CYCLOHEXENE-1,2-DICARBOXYLATE DIHYDRATE, LIHC8H8O4-CENTER-DOT-2H2O, Zeitschrift fur Kristallographie, 209(10), 1994, pp. 789-793
Lithium hydrogen cis-4-cyclohexene-1,2-dicarboxylate dihydrate, LiHC8H
8O4 . 2H2O, is monoclinic, C2/c, a = 28.276(7) angstrom, b = 5.3069(15
) angstrom, c = 13.962(3) angstrom, beta = 106.78(2)-degrees; R(w) = 0
.029. The anions are linked to chains by intermolecular hydrogen bonds
(O ... O 2.658(2) angstrom). Lithium is tetrahedrally coordinated. Th
e water molecules build hydrogen-bonded chains, which extend in the [0
01] direction. The protons within this chain are disordered and have t
wo possible positions with site occupation factors of 0.5. The disorde
r is interpreted as being caused by a random distribution of internall
y ordered chains of different alignment.