Collect. Czech. Chem. Commun. 1990, 55, 426-434

The crystal and molecular structure of scandium formate

Jindřich Hašeka, Jan Ondráčekb, Pavel Karenc and Jaroslav Bauerb

a Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6
b Department of Mineralogy, Prague Institute of Chemical Technology, 166 28 Prague 6
c Department of Inorganic Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


The structure of Sc(HCOO)3 was refined up to R = 0.046. The substance crystallizes in the monoclinic system, space group P21/c, a = 10.340(2), b = 6.631(1), c = 9.027(2) Å, β = 98.11(2)°, Z = 4. Scandium atoms are placed in the two symmetrically non-equivalent centres of symmetry thus forming alternating layers parallel to the plane of b,c. All formate oxygens are coordinated to Sc atoms thus forming a three-dimensional net with octahedral coordination of both independent Sc atoms. C-H bonds are oriented in between the nearest oxygens of neighbouring formate groups, but only one contact is sufficiently short to be denoted as the C-H···O hydrogen bond. IR and Raman spectra seem to confirm the differences between formate anions.