ChemInform Abstract: Localization of Hydrogen and Content of Oxonium Cations in Alunite via Neutron Diffraction.

Abstract

Dedicated to Professor H. D. Lutz, Siegen, on the Occasion of his 65 th Birthday.Abstract. Polycrystalline alunite-d 6 KAl 3 (OD) 6 (SO 4 ) 2 , prepared by hydrothermal reaction of Al 2 (SO 4 ) 3 , K 2 SO 4 and D 2 SO 4 , was studied by neutron powder diffraction performed on the diffractometer E2 (HMI-BENSC, Berlin). Rietveld refinement of the data set for T = 2 K yielded the crystallographic data: space group R3m, Z = 3, trigonal setting, a = 694.