TITLE

Synthesis and structural study of new potassium uranyl selenates K(HO)(HO)[(UO)(SeO)(HO)](HO) and K(HO)[(UO)(SeO)(HO)](HO)

AUTHOR(S)
Gurzhiy, V.; Tyumentseva, O.; Krivovichev, S.; Tananaev, I.; Myasoedov, B.
PUB. DATE
December 2011
SOURCE
Radiochemistry;Dec2011, Vol. 53 Issue 6, p569
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Single crystals of new uranyl selenates K(HO)(HO)[(UO)(SeO)(HO)](HO) ( 1) and K(HO)[(UO)(SeO)(HO)](HO) ( 2) were prepared by isothermal evaporation at room temperature. The crystal structure of 1 was solved by the direct method [ C2/ c, a = 17.879(5), b = 8.152(5), c = 17.872(5) Å, β = 96.943(5)°, V = 2585.7(19) Å, Z = 4] and refined to R = 0.0449 ( wR = 0.0952) for 2600 reflections with | F| ≥ 4σ. The structure of 2 was solved by the direct method [ P2/ c, a = 17.8377(5), b = 8.1478(5), c = 23.696(1) Å, β = 131.622(2)°, V = 2574.5(2) Å, Z = 4] and refined to R = 0.0516 ( wR = 0.1233) for 4075 reflections with | F| ≥ 4σ. The structures of 1 and 2 are based on [(UO)(SeO)(HO)] layers. The charge of the inorganic layer is compensated by potassium and oxonium ions arranged in the interlayer space. Each K ion is surrounded by seven O atoms belonging to uranyl selenate layers and water molecules, so that it binds with each other the adjacent uranyl selenate structural elements.
ACCESSION #
69887533

 

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics