Kristallstrukturen komplexer Alkali-Nickel-Azidhydrate
Abstract
The crystal structures of tetraalkaline-hexazidonickelat(II)-dihydrates M4Ni(N3)6 · 2H2O (M = K, Rb, Cs), space group P[unk], and of dicesium-tetrazidonickelat(II)-monohydrate Cs2Ni(N3)4 · H2O, space group Pbca, have been determined with the aid of a four circle automatic X-ray diffractometer (STOE) using graphite monochromated molybdenum Kα-radiation. The absorption was corrected numerically and the structures were solved by direct methods.
In all four structures the nickel(II)-ions are surrounded by six azide groups, which form regular octahedra. The alkaline ions have nine neighbours which form nonregular prisms with pyramides on their prism faces.
In M4Ni(N3)6 · 2H2O the Ni(N3)6-octahedra are isolated, M(1)- and M(2)-ions are surrounded by six azide groups and three H2O, M(3)- and M(4)-ions by nine azide groups.
In Cs2Ni(N3)6 · H2O the Ni(N3)6-octahedra are connected via azide groups, Cs(1)-ions are surrounded by nine azide groups, Cs(2)-ions by seven azide groups and two H2O.
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Articles in the same Issue
- X-Ray and neutron diffraction study of alums
- Complex ion centres in heavily doped NaBr: Tl phosphors
- Distortions of octahedra and octahedral sheets in 1 M micas and the relation to their stability
- Structure of 2-hydroxybenzimidazole
- Structural investigations of synthetic fairchildite, K2Ca(CO3)2
- The crystal and molecular structure of [Co(PO4)(NH3)4] · 3 H2O
- The crystal structure of Benzoic Acid: a redetermination with X-rays at room temperature; a summary of neutron-diffraction work at temperatures down to 5 K
- Modulated structure of a plagioclase An52: Theory and structure determination
- Die Kristallstruktur des Dilithium tetrahydroxo-di-μ-peroxodiborats(Lithiumperoxoborats), Li2[B2(O2)2(OH)4]
- Über Wirkungsbereichsteilungen von kubischer Symmetrie II. Die Typen von Wirkungsbereichspolyedern in den symmorphen kubischen Raumgruppen
- Kristallstrukturen komplexer Alkali-Nickel-Azidhydrate
- Röntgentopographische Untersuchungen an CdTe-Einkristallen
- The crystal structure of synthetic Tl3SbS4
