1998 structure

structure (solids and liquids)D 2000

39 - 001The Novel Binuclear Hydroxyberyllate Species [Be2(OH)7]3− andthe Hydroxide Hydrate Anion [H3O2]− as Components of BeryllateEquilibria. — The single crystal XRD for (IV) shows a trigonal structure(space group P3221, Z = 3). In the dinuclear beryllate trianion the two Beatoms are bridged by a hydroxide anion. The Ca atoms are in a distortedpentagonal bipyramidal environment of seven O atoms, two of which are part ofH2O molecules. In and between their helical strings the Ca-centered polyhedrashare edges. — (SCHMIDT, M.; SCHIER, A.; RIEDE, J.; SCHMIDBAUR,H.; Inorg. Chem. 37 (1998) 14, 3452-3453; Anorg.-Chem. Inst., TU Muenchen,D-85748 Garching, Germany; EN)

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