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Cobalt Borate Phosphate, Co3[BPO7], Synthesis and Characterization

✍ Scribed by Aysen Yilmaz; Xianhui Bu; Meral Kizilyalli; Rudiger Kniep; Galen D. Stucky

Book ID
102608723
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
157 KB
Volume
156
Category
Article
ISSN
0022-4596

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✦ Synopsis

Single crystals of Co 3 [BPO 7 ] were obtained by boron 6ux method and characterized by single-crystal di4raction data. The compound crystallizes in the monoclinic space group Cm with a ‫؍‬ 9.774(2), b ‫؍‬ 12.688(2), c ‫؍‬ 4.9057(8) A > , ‫؍‬ 119.749(2)3; V ‫؍‬ 528.20(15) A > 3 ; Z ‫؍‬ 4. The structure consists of Co in trigonal bipyramids, square pyramids, and distorted octahedra. Polyhedral Co centers, triangular B centers, and tetrahedral P centers are joined together to form a three-dimensional network. The temperature dependence of the magnetic susceptibility of the compound follows the Curie+Weiss law to 30 K. Below this temperature, the magnetic behavior displayed 5rst antiferromagnetic ordering followed by ferrimagnetic coupling at 25 K.

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