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Preparation, Structure Determination, and Redox Characteristics of New Calcium Copper Phosphates

โœ Scribed by B.I. Lazoryak; N. Khan; V.A. Morozov; A.A. Belik; S.S. Khasanov

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
390 KB
Volume
145
Category
Article
ISSN
0022-4596

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โœฆ Synopsis

New calcium copper phosphates o-Ca 19 Cu 2 (PO 4 ) 14 , r-Ca 19 Cu 2 H 1.42 (PO 4 ) 14 , and r-Ca 19 Cu 2ุŠy H 2.24 (PO 4 ) 14 (0.644 y40.7) were synthesized and characterized. The structures of these phosphates were re5ned using Rietveld analysis. The compound o-Ca 19 Cu 2 (PO 4 ) 14 has -Ca 3 (PO 4 ) 2 -like structure (Space Group R3c, z โ€ซุโ€ฌ 3). Compounds r-Ca 19 Cu 2 H 1.42 (PO 4 ) 14 and r-Ca 19 Cu 2ุŠy H 2.24 (PO 4 ) 14 (0.644y40.7) have the whitlockite-like structure (Space Group R3c, z โ€ซุโ€ฌ 3). The corresponding crystal data are (i) o-Ca 19 Cu 2 (PO 4

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