钒磷酸盐(NH3CH2CH2NH2)[VOPO4]的水热合成和结构表征 |
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引用本文: | 王永在,廖立兵,李国武,熊明. 钒磷酸盐(NH3CH2CH2NH2)[VOPO4]的水热合成和结构表征[J]. 化学学报, 2005, 63(1): 75-80 |
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作者姓名: | 王永在 廖立兵 李国武 熊明 |
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作者单位: | (中国地质大学材料科学与工程学院 北京 100083) |
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摘 要: | 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.
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关 键 词: | 钒磷酸盐 水热合成 结构表征 |
收稿时间: | 2004-01-13 |
修稿时间: | 2004-09-05 |
Hydrothermal Synthesis and Structural Characterization of Lamellar Vanadium Phosphate [NH3CH2CH2NH2][VOPO4] |
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Affiliation: | (School of Materials Science and Engineering, China University of Geoscience, Beijing 100083) |
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Abstract: | 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. |
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Keywords: | vanadium phosphate hydrothermal synthesis structural characterization |
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