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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (1): 75-80. 上一篇    下一篇

研究论文

钒磷酸盐(NH3CH2CH2NH2)[VOPO4]的水热合成和结构表征

王永在*，廖立兵，李国武，熊明   

  1. (中国地质大学材料科学与工程学院 北京 100083)
  • 投稿日期:2004-01-13 修回日期:2004-09-05 发布日期:2010-12-10
  • 通讯作者: 王永在

Hydrothermal Synthesis and Structural Characterization of Lamellar Vanadium Phosphate [NH3CH2CH2NH2][VOPO4]

WANG Yong-Zai*, LIAO Li-Bing, LI Guo-Wu, XIONG Ming   

  1. (School of Materials Science and Engineering, China University of Geoscience, Beijing 100083)
  • Received:2004-01-13 Revised:2004-09-05 Published:2010-12-10
  • Contact: WANG Yong-Zai

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标题化合物是在反应物摩尔比为V2O5∶H3PO4∶H2NCH2CH2NH2∶H2O＝0.55∶4∶3.6∶265时, 175 ℃水热反应5 d合成的. 其结构特点是: 钒八面体[VO5N]共用角顶的氧形成“之”字型链, 链间由[PO4]共角顶连接成层; 乙二胺分子的一个N直接与V配位, 并伸向层间. 相邻层间存在强氢键. 晶体学数据: 单斜晶系, P21/c (No. 14), a＝0.92108(2) nm, b＝0.72851(1) nm, c＝0.98204(2) nm, β＝101.269(7)°, V＝0.6462(4) nm3, Z＝4, Dc＝2.303 g•cm－3, R1＝0.0417, wR2＝0.0999.

关键词: 钒磷酸盐, 水热合成, 结构表征

The title compound was synthesized from the hydrothermal reaction of V2O5, H3PO4, H2NCH2CH2NH2 and H2O in the molar ratio of 0.55∶4∶3.6∶265 at 175 ℃ for 5 d. The structure contains layers built from chains of trans corner-shared [VO5N] octahedron that are interconnected by [PO4] tetrahedron. The 2-aminoethylaminium cation is bonded through the nitrogen to the vanadium site as a monodentate ligand. Strong hydrogen bonds hold the layers together. Crystal data: monoclinic, space group P21/c (No. 14), a＝0.92108(2) nm, b＝0.72851(1) nm, c＝0.98204(2) nm, β＝101.269(7)°, V＝0.6462(4) nm3, Z＝4, Dc＝2.303 g•cm－3, R1＝0.0417, wR2＝0.0999.

Key words: vanadium phosphate, hydrothermal synthesis, structural characterization