title: Cs10H[Ga3H8]3: a hydrogenous zintl phase containing propane-like polyanions [Ga3H8]3- and interstitial hydrogen.
abstract: The hydrogenous Zintl-phase Cs10H[Ga3H8]3 containing propane-like polyanions [Ga3H(D)8](3-) was successfully synthesized by direct hydrogenation of a 1:1 Cs/Ga metal mixture and characterized by powder X-ray and neutron diffraction. The charge of the polyanions is balanced by two different species of cations, hydrogen-centered octahedra [H(D)Cs6](5+) and isolated Cs(+). The structure crystallizes in the hexagonal space group P63/mcm (193) with the cell parameters a = 11.1108(3) Å, c = 18.2149(5) Å, Z = 2.
authors.affiliation: Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden. henrik.fahlquist@mmk.su.se
authors.forename: Henrik
authors.initials: H
authors.lastname: Fahlquist
authors.forename: Dag
authors.initials: D
authors.lastname: Noréus