Tetrakis(μ-naphthalene-1-acetato)bis(naphthalene-1-acetato)bis(1,10-phenanthroline)samarium(III)terbium(III) N,N-dimethylformamide disolvate

Abstract

Molecules of the title complex, [SmTb(C12H9O2)6(C12H8N2)2]·2C3H7NO, are centrosymmetric with equal disorder of the Sm and Tb atoms. Each SmIII and TbIII ion is nine-coordinate. The Sm and Tb atoms have a distorted monocapped square-antiprismatic coordination geometry. The molecules are linked into a chain by C—H...O and C—H...π hydrogen bonds parallel to the a axis, and into a sheet by C—H...π hydrogen bonds parallel to the (100) plane. The combination of the chains and sheets generates a three-dimensional framework structure.