𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structure of Zr2(WO4)(PO4)2 from Powder X-Ray Data: Cation Ordering with No Superstructure

✍ Scribed by J.S.O. Evans; T.A. Mary; A.W. Sleight

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
208 KB
Volume
120
Category
Article
ISSN
0022-4596

No coin nor oath required. For personal study only.

✦ Synopsis

The ab initio structure determination of (\mathrm{Zr}{2}\left(\mathrm{WO}{4}\right)\left(\mathrm{PO}{4}\right){2}) from room temperature powder X-ray diffraction data is reported. This compound crystallizes in the orthorhombic space group Pnca with (a=9.35451(9), b=12.31831(9)), and (c=9.16711(8) \AA) Γ‚. The structure is based on (\mathrm{ZrO}{6}) octahedra sharing corners with (\mathrm{WO}{4}) and (\mathrm{PO}{4}) tetrahedra. Although (\mathrm{Zr}{2}\left(\mathrm{WO}{4}\right)\left(\mathrm{PO}{4}\right){2}) is isostructural with (\mathrm{Fe}{2}\left(\mathrm{MoO}{4}\right){3}) and its (\mathrm{WO}{4}) and (\mathrm{PO}{4}) tetrahedra are well ordered, no superstructure or change in space group is required to account for this ordering. (\odot 1995) Academic Press, nc.

πŸ“œ SIMILAR VOLUMES

ChemInform Abstract: Crystal Structure,
ChemInform Abstract: Crystal Structure, Including H-Atom Positions, of Ti2O(PO4)2(H2O)2 Determined from Synchrotron X-Ray and Neutron Powder Data.
✍ M. A. SALVADO; P. PERTIERRA; S. GARCIA-GRANDA; J. R GARCIA; M. T. FERNANDEZ-DIAZ πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 30 KB πŸ‘ 1 views

The structure consists of a three-dimensional network of TiO 6 octahedra and PO 4 tetrahedra linked by vertex sharing. The two independent Ti atoms are connected by an oxo-bridge and two independent H 2 O molecules are linked to one type of Ti atoms. -(SALVADO, M. A.;