Synthesis and Magnetic Properties of a New Borophosphate SrCo2BPO7 with a Four-Column Ribbon Structure

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• 作者：Wenbin Gou ; Zhangzhen He ; Ming Yang ; Weilong Zhang ; Wendan Cheng
• 刊名：Inorganic Chemistry
• 出版年：2013
• 出版时间：March 4, 2013
• 年：2013
• 卷：52
• 期：5
• 页码：2492-2496
• 全文大小：356K
• 年卷期：v.52,no.5(March 4, 2013)
• ISSN：1520-510X

文摘

A new borophosphate SrCo₂BPO₇ is synthesized by a conventional high-temperature solid-state reaction. The titled compound is found to crystallize in monoclinic system with space group P2₁/c, which displays a distorted four-column ribbon structure. Both BO₃ triangles and PO₄ tetrahedra are isolated, while irregular triangles built by Co²⁺ ions are found to exist between the connecting ribbons. Magnetic behaviors are investigated by means of susceptibility, magnetization, and heat capacity measurements. The results confirm that SrCo₂BPO₇ possesses a three-dimensional antiferromagnetic ordering at 25 K. The possible spin arrangements in the system are also suggested.