Institute of Materials Science and Engineering, The Ocean University of China, Qingdao, 266100, PR China.
Dalton Trans. 2010 Aug 21;39(31):7262-5. doi: 10.1039/c000515k. Epub 2010 Jun 10.
A novel chromium borophosphate with anionic clusters has been synthesized using boric acid as flux. X-ray diffraction analysis on a single crystal reveals that its structure comprises of crown-shaped 6-membered ring clusters NaCr(8)B(4)P(12)O(60)H(8), which are built from [Cr(4)O(18)] groups, [BP(2)O(10)] anions and PO(4) tetrahedra with Na(+) cations encapsulated in the clusters. Magnetic investigation showed strong antiferromagnetic interactions between Cr(3+)-Cr(3+) dimers at low temperature.
一种新型的具有阴离子簇的铬硼磷酸盐已经通过使用硼酸作为助熔剂合成得到。通过对单晶的 X 射线衍射分析发现，其结构由冠形 6 元环簇NaCr(8)B(4)P(12)O(60)H(8)组成，这些簇由[Cr(4)O(18)]基团、[BP(2)O(10)]阴离子和 PO(4)四面体组成，其中 Na(+)阳离子被包裹在簇中。磁性研究表明，低温下 Cr(3+)-Cr(3+)二聚体之间存在强烈的反铁磁相互作用。
