Über Oxidsulfide mit Åkermanitstruktur CaLaGa3S6O,SrLaGa3S6O,La2ZnGa2S6O und Sr2ZnGe2S6O

On Oxidesulfides of Åkermanitetype-Structure CaLaGa₃S₆O, SrLaGa₃S₆O, La₂ZnGa₂S₆O, and Sr₂ZnGe₂S₆O The oxide sulfides were prepared for the first time (space group and lattice constants see “Inhaltsübersicht”). The atomic positions were refined from single crystal X-ray data for CaLaGa₃S₆O and La₂ZnGa₂S₆O. Problems concerning the metal distribution on the crystallographic positions are discussed by comparing interatomic distances. The ratio c/a of the new compounds is compared with that of isotypic compounds from literature.