New Metal-Intercalated Layered Vanadyl Phosphates, M_xVOPO₄·yH₂O (M = Ag, Cu, Zn) (original) (raw)

1998, Inorganic Chemistry

Three new, mixed-valent layered vanadyl phosphates, Ago^VOPO^I^O (AgVPO), Cuo.1eVOPO4-2.5H2O (CuVPO), and Zno.11VOPO4-2.5H2O (ZnVPO), have been synthesized hydrothermally and their structures determined by single-crystal X-ray diffraction: AgVPO is triclinic, space group PI, a) 6.287(1), b) 6.283(1), and c) 13.240(1) A, R) 80.98(1), /3) 86.58(1) and γ) 90.00(1)°, Z) 4; CuVPO is triclinic, space group PI, a) 6.260(2), b) 6.249(3), and c) 7.257(1) A, R) 83.62(3), fi) 73.99(2), and γ) 90.13(4)°, Z) 2; ZnVPO is triclinic, space group PI, a) 6.252(1), b) 6.248(2), and c) 7.339(3) A, R) 83.24(4), /?) 73.93(2), and y) 90.00(2)°, Z) 2. The structures are related to that of VOPO 4-2H 2 O. Metal powders have been found to be effective both as reductants and as countercations. Supporting Information Available: Listings of full X-ray powder diffraction data, complete crystallographic parameters, anisotropic thermal parameters, interatomic distances, and bond angles (18 pages). Ordering information is given on any current masthead page.