Kevin R. Heier

Crystal structure of Zn3.77V1.54Mo1.46O12 containing ZnO6 trigonal prisms

Abstract Single crystals of Zn3.77V1.54Mo1.46O12 were grown in a ZnO/V2O5/MoO3 melt. The colorless needles were determined to be orthorhombic, space group P212121 (No. 19), a=5.048 (4) A , b=10.400 (2) A , c=17.560 (7) A , V=921.9(6) A 3 , and Z=4. One type of zinc cation in the structure exhibits trigonal prismatic coordination, and relatively large distortions of the ZnO bond lengths in the trigonal prisms reduce the symmetry from Pnma (centrosymmetric) to P212121 (acentric).

Crystal growth and structure of Mn2.47V0.94Mo1.06O8

Abstract Single crystals of Mn2.47V0.94Mo1.06O8 were grown in a MnO/V2O5/MoO3 melt under a nitrogen atmosphere (orthorhombic, space group Pnma (No. 62), a=5.167(2) A, b=10.580(3) A, c=17.868(4) A, and Z=6). The crystallization, composition, and quality of the crystals were largely influenced by the composition of the melt, temperature and the oxygen partial pressure.

[pyH+]2[CdNb2(py)4O2F10]2-

A new Cd II /Nb V compound, bis(pyridinium) decafluoro-2κ 5 F,3κ 5 F-di-μ-oxo-1:2κ 2 O;1:3κ 2 O-tetrakis(pyridine-NR)-cadmiumdiniobium(2-), (C 5 H 6 N) 2 [CdNb 2 F 10 O 2 (C 5 H 5 -N) 4 ], has been synthesized. The complex contains [CdNb 2 (py) 4 F 10 O 2 ] 2- anions (py is pyridine) linked via the pyridinium cation through N-H + ...F hydrogen bonding. The anion is composed of two [NbF 5 O 1/2 ] - octahedra connected by O 2- to a central [Cd(py) 4 O 2/2 ] octahedron.