Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln(2)O(2)CN(2) (Ln = Dy, Ho, Er, Tm, Yb)
文献类型：期刊论文
| 作者 | Li, M ; Yuan, WX ; Wang, JF ; Gu, C ; Zhao, HH |
| 刊名 | POWDER DIFFRACTION
 |
| 出版日期 | 2007 |
| 卷号 | 22期号:1页码:59 |
| 关键词 | POWDER DIFFRACTION PATTERNS ROUTES LA EU GD ND |
| ISSN号 | 0885-7156 |
| 通讯作者 | Li, M (reprint author), Univ Sci & Technol Beijing, Sch Appl Sci, Dept Chem, Beijing 100083, Peoples R China. |
| 中文摘要 | Trigonal rare-earth dioxymonocyanamides Ln(2)O(2)CN(2) (Ln=Dy,Ho,Er,Tm,Yb) were synthesized by the modified solid-state metathesis (SSM) method, in which Ln(2)O(3) and melamine C3N6H6 were mixed and heated at 850 degrees C in vacuumed silica ampoules. Possible chemical reaction pathways are proposed. X-ray diffraction (XRD) patterns of Ln(2)O(2)CN(2) were refined using the Rietveld method. Compounds Ln(2)O(2)CN(2) crystallize in the trigonal system with space group P(3) over bar m1, Z=1, and cell parameters of a and c varying from 3.7267(1) to 3.6407(1) angstrom and from 8.1848(3) to 8.1152(3) angstrom, respectively, as Ln atoms change from Dy to Yb. These compounds have stacking structures of Ln(2)O(2)(2+) and CN22- layers, similar to those of previously reported compounds Ln(2)O(2)CN(2) (Ln = Ce, Pr, Nd, Sm, Eu, Gd). The presence of CN22- ions has been confirmed by infrared spectroscopy, with two characteristic peaks in the vicinity of 651 and 2075 cm(-1). (C) 2007 International Centre for Diffraction Data. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/54274]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, M,Yuan, WX,Wang, JF,et al. Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln(2)O(2)CN(2) (Ln = Dy, Ho, Er, Tm, Yb)[J]. POWDER DIFFRACTION,2007,22(1):59. |
| APA | Li, M,Yuan, WX,Wang, JF,Gu, C,&Zhao, HH.(2007).Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln(2)O(2)CN(2) (Ln = Dy, Ho, Er, Tm, Yb).POWDER DIFFRACTION,22(1),59. |
| MLA | Li, M,et al."Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln(2)O(2)CN(2) (Ln = Dy, Ho, Er, Tm, Yb)".POWDER DIFFRACTION 22.1(2007):59. |
入库方式： OAI收割
来源：物理研究所
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