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Na

2

ZrSe

3

, ein neues Chalcogenometallat(IV) mit Schichtstruktur Na

2

ZrSe

3

, a New Chalcogenometallate(IV) with a Layered Structure

Norbert A. Harringer, Andreas Kolb und Kurt O. Klepp

Abteilung f¨ur Allgemeine und Anorganische Chemie, Universit¨at Linz, Altenbergerstr. 69, A-4040 Linz

Sonderdruckanforderungen an Prof. Dr. K. O. Klepp. Fax +4373224688800.

E-mail: kurt.klepp@jku.at

Z. Naturforsch.56 b,1322–1324 (2001); eingegangen am 30. August 2001 Complex Chalcogenides, Selenides, Zirconium

Orange red crystals of Na2ZrSe3were obtained by the reaction of Na2Se, Zr and Se at 800C.

The new compound is monoclinic, s. g. C2/m with a = 6.952(2), b = 12.01(1), c = 7.257(2) ˚A,

= 108.81(2), Z = 4. Its crystal structure was determined from single crystal diffractometer data (Mo-K-radiation) and refined to a conventional R of 0.016. It is characterized by layers based on a distorted ccp packing of Se-atoms where all metal atoms occupy octahedral voids in an ordered fashion. Zr atoms are located on the nodes of a 63-net forming CrCl3 type selenozirconate layer (¯d(Zr-Se) = 2.702 ˚A).

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