Die Kristallstruktur des Dilithium tetrahydroxo-di-μ-peroxodiborats(Lithiumperoxoborats), Li2[B2(O2)2(OH)4]
Abstract
The crystal structure of synthetic LiBO2 · H2O2, Li2[B2(O2)2(OH)4], was determined from single-crystal X-ray diffractometer data. The compound is monoclinic, space group P21/c; the lattice constants are a = 704.0(5) pm, b = 788.0(4) pm, c = 508.5(2) pm and β = 97.98(5)°; the unit cell contains Z = 2 formula units Li2[B2(O2)2(OH)4]. The measured density is Dm = 1.97 and the calculated density is Dc = 1.997 Mg · m−2. The crystal structure has been solved from 533 observed reflections by means of the Multan method and refined by least-squares calculations to an index R of 4.5% and Rw of 3.8%. The structure contains the peroxoanion [B2(O2)2(OH)4]2− found already in the structure of triclinic NaBO2 · 3 H2O · H2O2, Na2[B2(O2)2(OH)4] · 6H2O. The Li atom is coordinated by six O atoms with distances between 197.0 and 225.3 pm. Connections between the B – O rings are provided only by the Li+ ions, contrary to the hydrated sodium peroxoborate.
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- Über Wirkungsbereichsteilungen von kubischer Symmetrie II. Die Typen von Wirkungsbereichspolyedern in den symmorphen kubischen Raumgruppen
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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
