Wm. Lu et al., A dihomonuclear complex: di-mu-methacrylato-O : O '-bis[(1,10-phenanthroline-N,N ')bis-(methacrylato-O,O ')ytterbium(III)], ACT CRYST C, 55, 1999, pp. 1472-1475
In the structure of the title complex, [Yb-2(C4H5O2)(6)(C12H8N2)(2)], each
Yb3+ ion is coordinated by six O atoms from four methacrylate ligands and b
y two N atoms of a phenanthroline Ligand, giving a coordination polyhedron
which is a distorted square antiprism. Within each centrosymmetric dinuclea
r molecule, two Yb3+ ions are bridged by two bidentate bridging methacrylat
e ligands.