Barrier N, Gall P, Gougeon P
Laboratoire CRISMAT, UMR CNRS 6508, 6 Boulevard Maréchal Juin, 14050 Caen Cedex 4, France.
Acta Crystallogr C. 2007 Nov;63(Pt 11):i102-4. doi: 10.1107/S0108270107045416. Epub 2007 Oct 13.
Trisamarium molybdenum heptaoxide, Sm(3)MoO(7), is isomorphous with Ln(3)MoO(7) (Ln = La and Pr). The crystal structure consists of chains of corner-linked MoO(6) octahedra running parallel to the b axis and separated from each other by seven- or eight-coordinate Sm-O polyhedra. In contrast to La(3)MoO(7) and Pr(3)MoO(7), a splitting of one Sm site into two positions is observed.