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Synthesis and Crystal Structure of CaCo(H 2 O)[BP 2 O 8 (OH)]·H 2 O
Author(s) -
Menezes Prashanth W.,
Hoffmann Stefan,
Prots Yurii,
Kniep Rüdiger
Publication year - 2009
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200801376
Subject(s) - triclinic crystal system , crystallography , octahedron , crystal structure , hydrothermal circulation , hydrothermal synthesis , crystal (programming language) , chemistry , tetrahedron , single crystal , materials science , geology , programming language , seismology , computer science
CaCo(H 2 O)[BP 2 O 8 (OH)]·H 2 O was synthesized under mild hydrothermal conditions and investigated by single crystal X–ray diffraction (triclinic, space group P $\bar{1}$ (No. 2), a = 6.5793(3) Å, b = 7.8320(1) Å, c = 8.8172(1) Å, α = 68.785(7)°, β = 82.719(10)°, γ = 73.985(9)°, V = 406.930(19) Å 3 , Z = 2). The crystal structure contains layers stacked along [011]. The layers are built from isolated borophosphate oligomers, [B 2 P 4 O 16 (OH) 2 ] 8– (loop branched tetrahedral hexamers), which are interconnected by dimers of CoO 3 O 2/2 (H 2 O) coordination octahedra. Calcium ions and crystal water are located at the borders of the layers, close to intra‐layer cavities.