Metal-Organic Perovskites: Synthesis, Structures, and Magnetic Properties of [C(NH2)(3)][M-II(HCOO)(3)] (M=Mn, Fe, Co, Ni, Cu, and Zn; C(NH2)(3)=Guanidinium)
文献类型：期刊论文
| 作者 | Hu, Ke-Li1; Kurmoo, Mohamedally2; Wang, Zheming1; Gao, Song1 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2009 |
| 卷号 | 15期号:44页码:12050-12064 |
| 关键词 | Structure Elucidation Guanidinium Magnetic Properties Metal Formates Metal-organic Perovskites |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200901605 |
| 英文摘要 | We report the synthesis, crystal structures, and spectral, thermal, and magnetic properties of a family of metal-organic perovskite ABX(3), [C(NH2)(3)][M-II(HCOO)(3)], in which A=C-(NH2)(3) is guanidinium, B=M is a divalent metal ion (Mn, Fe, Co, Ni, Cu, or Zn), and X is the formate HCOO-. The compounds could be synthesized by either diffusion or hydrothermal methods from water or water-rich solutions depending on the metal. The five members (Mn, Fe, Co, Ni, and Zn) are isostructural and crystallize in the orthorhombic space group Pnna, while the Cu member in Pna2(1). In the perovskite structures, the octahedrally coordinated metal ions are connected by the anti-anti formate bridges, thus forming the anionic NaCl-type [M(HCOO)(3)](-) frameworks, with the guanidinium in the nearly cubic cavities of the frameworks. The Jahn-Teller effect of Cu2+ results in a distorted anionic Cu-formate framework that can be regarded as Cu-formate chains through short basal Cu-O bonds linked by the long axial Cu-O bonds. These materials show higher thermal stability than other metal-organic perovskite series of [AmineH][M(HCOO)(3)] templated by the organic monoammonium cations (AmineH(+)) as a result of the stronger hydrogen bonding between guanidinium and the formate of the framework. A magnetic study revealed that the five magnetic members (except Zn) display spin-canted antiferromagnetism, with a Neel temperature of 8.8 (Mn), 10.0 (Fe), 14.2 (Co), 34.2 (Ni), and 4.6 K (Cu). In addition to the general spin-canted antiferromagnetism, the Fe compound shows two isothermal transformations (a spin-flop and a spin-flip to the paramagnetic phase) within 50 kOe. The Co member possesses quite a large canting angle. The Cu member is a magnetic system with low dimensional character and shows slow magnetic relaxation that probably results from the domain dynamics. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272109100031 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67597]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Zheming |
| 作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Univ Strasbourg, Chim Coordinat Organ Lab, CNRS, UMR7140,Inst Le Bel, F-67000 Strasbourg 01, France |
| 推荐引用方式 GB/T 7714 | Hu, Ke-Li,Kurmoo, Mohamedally,Wang, Zheming,et al. Metal-Organic Perovskites: Synthesis, Structures, and Magnetic Properties of [C(NH2)(3)][M-II(HCOO)(3)] (M=Mn, Fe, Co, Ni, Cu, and Zn; C(NH2)(3)=Guanidinium)[J]. CHEMISTRY-A EUROPEAN JOURNAL,2009,15(44):12050-12064. |
| APA | Hu, Ke-Li,Kurmoo, Mohamedally,Wang, Zheming,&Gao, Song.(2009).Metal-Organic Perovskites: Synthesis, Structures, and Magnetic Properties of [C(NH2)(3)][M-II(HCOO)(3)] (M=Mn, Fe, Co, Ni, Cu, and Zn; C(NH2)(3)=Guanidinium).CHEMISTRY-A EUROPEAN JOURNAL,15(44),12050-12064. |
| MLA | Hu, Ke-Li,et al."Metal-Organic Perovskites: Synthesis, Structures, and Magnetic Properties of [C(NH2)(3)][M-II(HCOO)(3)] (M=Mn, Fe, Co, Ni, Cu, and Zn; C(NH2)(3)=Guanidinium)".CHEMISTRY-A EUROPEAN JOURNAL 15.44(2009):12050-12064. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。