(IUCr) Crystallography Journals Online

Acta Cryst. (2008). E64, i27 [ doi:10.1107/S1600536808011380 ]

Hafnium germanium telluride

G.-J. Jang and H. Yun

Abstract: The title hafnium germanium telluride, HfGeTe₄, has been synthesized by the use of a halide flux and structurally characterized by X-ray diffraction. HfGeTe₄ is isostructural with stoichiometric ZrGeTe₄ and the Hf site in this compound is also fully occupied. The crystal structure of HfGeTe₄ adopts a two-dimensional layered structure, each layer being composed of two unique one-dimensional chains of face-sharing Hf-centered bicapped trigonal prisms and corner-sharing Ge-centered tetrahedra. These layers stack on top of each other to complete the three-dimensional structure with undulating van der Waals gaps.

Online 30 April 2008