...
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Preparation and crystal structure of sodium iron hydrogen phosphate, NaFe(HPO4)(H2PO4)(2) center dot H2O
【24h】

Preparation and crystal structure of sodium iron hydrogen phosphate, NaFe(HPO4)(H2PO4)(2) center dot H2O

机译:磷酸氢钠铁(NaFe(HPO4)(H2PO4)(2)中心点H2O的制备和晶体结构

获取原文
获取原文并翻译 | 示例
           

摘要

Single crystals of sodium iron hydrogen phosphate, NaFe(HPO4)(H2PO4)(2). H2O, were prepared hydrothermally by heating a mixture of Fe2O3, H3PO4 and Na2CO3 with a small amount of water. It crystallizes orthorhombic (Pbcn (N degrees 60), Z = 8, a = 872.91(7), b = 1249.54(8), c = 1894.4(1) pm). The crystal structure was solved by using 1121 unique reflections I > 2 sigma(I) and refined for a final conventional residual R = 0.039 (188 variables, 25 atoms including hydrogen in the asymmetric unit). The main feature of the crystal structure is a ReO3-like network formed by hydrogenphosphate-, dihydrogenphosphate-groups and FeO6 octahedra with channels along the [201], [010] and [<(2)over bar 01>] directions. Na+ and H2O molecules are occupying these channels. Effective Coordination Numbers (ECoN), Mean Fictive Ionic Radii (MEFIR) and the Madelung Part of Lattice Energy (MAPLE) are calculated for the title compound. [References: 12]
机译:磷酸氢铁钠铁的单晶NaFe(HPO4)(H2PO4)(2)。通过加热Fe2O3,H3PO4和Na2CO3的混合物与少量水以水热方式制备H2O。它结晶成斜方晶系(Pbcn(N度60),Z = 8,a = 872.91(7),b = 1249.54(8),c = 1894.4(1)pm)。通过使用1121个唯一反射I> 2 sigma(I)解析晶体结构,并精炼为最终的常规残留R = 0.039(188个变量,在不对称单元中包括25个原子)。晶体结构的主要特征是由磷酸氢根,磷酸二氢根和FeO6八面体形成的ReO3样网络,其通道沿[201],[010]和[<(2)穿过条01>]方向。 Na +和H2O分子占据了这些通道。计算出标题化合物的有效配位数(ECoN),平均虚拟离子半径(MEFIR)和格架能量的马德隆部分(MAPLE)。 [参考:12]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号