Synthesis and crystal structure of Ca(VO) 2(PO 4) 2

A new phosphate, Ca(VO) 2(PO 4) 2, was synthesized hydrothermally and its structure was determined from single-crystal X-ray diffraction data. It crystallizes in the noncentrosymmetric orthorhombic space group Fdd2 with a = 11.795(4), b = 15.784(6), c = 7.190(4)Å, Z = 8, and R = 0.0346. The structur...

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Bibliographic Details
Published inJournal of solid state chemistry Vol. 99; no. 1; pp. 72 - 77
Main Authors Lii, K.H., Chueh, B.R., Kang, H.Y., Wang, S.L.
Format Journal Article
LanguageEnglish
Published San Diego, CA Elsevier Inc 01.07.1992
Elsevier
Subjects
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Inorganic compounds
Physics
Salts
Structure of solids and liquids; crystallography
Structure of specific crystalline solids
Crystal growth
Hydrothermal growth
Transition metal Compounds
Calcium Vanadyl Phosphates Mixed
Experimental study
Inorganic compound
Crystalline structure
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Summary:A new phosphate, Ca(VO) 2(PO 4) 2, was synthesized hydrothermally and its structure was determined from single-crystal X-ray diffraction data. It crystallizes in the noncentrosymmetric orthorhombic space group Fdd2 with a = 11.795(4), b = 15.784(6), c = 7.190(4)Å, Z = 8, and R = 0.0346. The structure consists of infinite chains of trans-corner-sharing VO 6 octahedra cross-linked by phosphate groups to form a 3-dimensional network. These chains have alternating short and long V O bonds. The network contains intersecting channels where the Ca 2+ cations are located. The structure is compared with those of the AVOPO 4 (A =alkali metal) family.
ISSN:0022-4596
1095-726X
DOI:10.1016/0022-4596(92)90290-C