Synthesis and crystal structure of Ag2[(UO2)6(MoO4)7(H2O)2](H2O)2
- 46 Downloads
The compound Ag2[(UO2)6(MoO4)7(H2O)2](H2O)2 was prepared at 220°С in the course of hydrothermal synthesis. The phase crystallizes in the rhombic system, space group Pbcm, а = 14.1309(9), b = 10.6595(7), c = 25.8281(16) Å, V = 3890.44 Å3. The crystal structure was solved by direct methods and refined to R 1 = 0.049 for 4394 reflections with Fo > 4σ(Fo) and 0.1025 for all the 8239 reflections. The structure is based on a framework constituted by UO7 and MoO4 polyhedra sharing common vertices. In the framework, there are two systems of channels occupied by Ag+ cations and water molecules and oriented along  and .
Keywordshexavalent uranium molybdates single crystal X-ray diffraction analysis framework compounds of uranium
Unable to display preview. Download preview PDF.
- 1.Sidorenko, G.A., Kristallokhimiya mineralov urana (Crystal Chemistry of Uranium Minerals), Moscow: Atomizdat, 1978.Google Scholar
- 2.Burns, P.C., Miller, M.L., and Ewing, R.C., Can. Mineral., 1996, vol. 34, pp. 845–880.Google Scholar
- 3.Burns, P.C. and Carpenter, M.A., Can. Mineral., 1996, vol. 34, pp. 881–892.Google Scholar
- 4.Burns, P.C., Hawthorne, F.C., and Ewing, R.C., Can. Mineral., 1997, vol. 35, pp. 1551–1570.Google Scholar
- 6.Nazarchuk, E.V., Krivovichev, S.V., and Burns, P.C., Zap. Vseross. Mineral. O–va., 2005, no. 2, pp. 110–117.Google Scholar
- 7.Wronkiewicz, D.J. and Buck, E.C., Rev. Mineral., 1999, vol. 38, pp. 475–497.Google Scholar
- 16.SAINT, V. 5.01: Program for Reduction of Data Collected on Bruker AXS CCD Area Detector Systems, Madison, WI: Bruker Analytical X-ray Systems, 1998.Google Scholar
- 17.SHELXTL NT, V. 5.1: Program Suite for Solution and Refinement of Crystal Structures, Madison, WI: Bruker Analytical X-ray Systems, 1998.Google Scholar
- 18.Brown, I.D., The Chemical Bond in Inorganic Chemistry, Oxford: Oxford Univ. Press, 2002.Google Scholar
- 19.Tabachenko, V.V., Kovba, L.M., and Serezhkin, V.N., Koord. Khim., 1984, vol. 10, pp. 558–562.Google Scholar
- 20.Structural Chemistry of Inorganic Actinide Compounds, Krivovichev, S.V., Burns, P.C., and Tananaev, I.G., Eds., Amsterdam: Elsevier, 2007, p. 494.Google Scholar