Two new Rb-Ga arsenates: RbGa(HAsO₄)₂ and RbGa₂As(HAsO₄)₆.

ABSTRACT: The crystal structures of hydro-thermally synthesized (T = 493 K, 7-9 d) rubidium gallium bis-[hydrogenarsenate(V)], RbGa(HAsO₄)₂, and rubidium digallium arsenic(V) hexa-[hydrogenarsenate(V)], RbGa₂As(HAsO₄)₆, were solved by single-crystal X-ray diffraction. Both compounds have tetra-hedral-octa-hedral framework topologies. The M⁺ cations are located in channels of the respective framework. RbGa(HAsO₄)₂ crystallizes in the RbFe(HPO₄)₂ structure type (Rc), while RbGa₂As(HAsO₄)₆ adopts the structure type of RbAl₂As(HAsO₄)₆ (Rc), which represents a modification of the RbFe(HPO

SUBMITTER: Schwendtner K 

PROVIDER: S-EPMC6127722 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature