How are Centrosymmetric and Noncentrosymmetric Structures Achieved in Uranyl Borates?

Wang, S. A., Alekseev, E. V., Stritzinger, J. T., Depmeier, W. and Albrecht-Schmitt, T. E. (2010) How are Centrosymmetric and Noncentrosymmetric Structures Achieved in Uranyl Borates? Inorganic Chemistry, 49 (6). pp. 2948-2953. DOI 10.1021/ic902480n.

Full text not available from this repository.

Supplementary data:

Abstract

Four uranyl borates, UO(2)B(2)O(4) (UBO-1), alpha-(UO(2))(2)[B(9)O(14)(OH)(4)] (UBO-2), beta-(UO(2))(2)[B(9)O(14)(OH)(4)] (UBO-3), and (UO(2))(2)[B(13)O(20)(OH)(3)]center dot 1.25H(2)O (UBO-4), have been prepared from boric acid fluxes at 190 degrees C. UBO-3 and UBO-4 are centrosymmetric, whereas UBO-1 and UBO-2 are noncentrosymmetric (chiral and polar). These uranyl borates possess layered structures constructed from UO(8) hexagonal bipyramids, BO(3) triangles, and 604 tetrahedra. In the case of UBO-4, clusters of BO(3) triangles link the layers together to form open slabs with a thickness of almost 2 nm. The ability of uranyl borates to use very similar layers to yield both centrosymmetric and noncentrosymmetric layers is detailed in this work.

Document Type: Article
Keywords: minerals actinides crystals insights uranium
Research affiliation: Kiel University
Refereed: Yes
DOI etc.: 10.1021/ic902480n
ISSN: 0020-1669
Date Deposited: 22 Dec 2011 05:35
Last Modified: 28 Mar 2018 10:23
URI: http://eprints.uni-kiel.de/id/eprint/15728

Actions (login required)

View Item View Item