A new type of mixed framework in the crystal structure of binary molybdateNd2Zr3(MoO4)(9)

Single crystals of binary molybdate Nd2Zr3(MoO4)(9) were grown. The crystal structure of this compound was investigated by X-ray diffraction analysis (CAD-4 diffractometer, MoKalpha radiation, 2844 reflections, R = 0.0230), a nd a new type of structure was found. The crystals are trigonal with cell d imensions a = 9.804(1), c= 58.467 (2) Angstrom, V = 4867(1) Angstrom(3), Z = 6, d(calc) = 4.098 g/cm(3), space group R (3) over bar c. The structure i nvolves polyhedra of three types: MoO4 tetrahedra, ZrO6 octahedra, and NdO9 tricapped trigonal prisms linked by their common vertices into an original three-dimensional framework.