Tetrahedral coordination of mn(iv) by oxygen in manganese sillenite bi₁₂mno₂₀

authored by

U. Delicat, S. F. Radaev, M. Trömel, P. Behrens, Y. F. Kargin, A. A. Mar'in

Abstract

Polycrystalline samples and a single crystal of the Mn sillenite Bi₁₂MnO₂₀ have been synthesized and studied. IR spectroscopy, XANES, and XRPD show that manganese atoms are tetravalent and tetrahedrally coordinated by oxygen. The X-ray single-crystal study of Bi₁₂MnO₂₀ confirms that this is the first example of a compound containing Mn^IV in tetrahedral coordination by oxygen with Mn-O distances of 1.75(2) Å. The crystal is cubic, sp.gr. I23 (Z = 2); a = 10.206(1) Å. The final agreement factors are wR = 2.83 and R = 3.49% for 625 reflections. Bi₁₂MnO₂₀ belongs to the stoichiometric sillenites with tetravalent M atoms of one kind.

External Organisation(s)

Goethe University Frankfurt
University of Konstanz
Russian Academy of Sciences (RAS)

Type

Article

Journal

Journal of solid state chemistry

Volume

110

Pages

66-69

No. of pages

4

ISSN

0022-4596

Publication date

05.1994

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Ceramics and Composites, Condensed Matter Physics, Physical and Theoretical Chemistry, Inorganic Chemistry, Materials Chemistry

Electronic version(s)

https://doi.org/10.1006/jssc.1994.1136 (Access: Closed)