Cyano-bridged aqua(N,N-dimethylacetamide)(cyanoiron)lanthanides from samarium, gadolinium, or holmium nitrate and potassium hexacyanoferrate: Crystal structures and magnetochemistry | |
Yan, B ; Chen, Z | |
刊名 | 瑞士化学会志
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2001 | |
关键词 | CHROMIUM(III) NICKEL(II) CYANIDE LANTHANIDE ION COMPLEXES MOLECULAR-BASED MAGNETS ONE-DIMENSIONAL ARRAYS STATE ENERGY-TRANSFER SILVER DICYANIDES TRANSITION-METALS LIGANDS CU HEXAFLUOROACETYLACETONATO |
DOI | 10.1002/1522-2675(20010418)84:4<817::AID-HLCA817>3.0.CO;2-U |
英文摘要 | Three cyano-bridged aqua(N.N-dimcthylacrtamide)(cyanoiron)lanthanide complexes were synthesized by the reaction of K(3)Fe(CN)(6). Ln(NO(3))(3). 6H(2)O (Ln = Sm, Gd, Ho), and N.N-dimethylacetamide (DMA). The obtained complexes 1-3 exhibit different coordination geometries and crystal structures. The polymeric {[Sm(DMA)(2)(H(2)O)(4)Fr(CN)(6). 5H(2)O}(n) ([SmFe](n): 1) has a one-dimensional chain structure with approximately parallel trans-positioned bridging CN ligands between the Sm- and Fe-atoms. [(Gd(DMA)(3)(H(2)O)(4))(2)Fe(CN)(6)] [Fe(CN)(6)]. 3H(2)O (Gd(2)Fe: 2) is an isolated trinuclear Gd(l)-Fe-Gd(2) complex with two approximately perpendicular cis-positioned bridging CN ligands between the two Gd-atoms and the Fe-atom. [Ho(DMA)(3-)(H(2)O)(3)Fe(CN)(6)] . 3H(2)O (HoFe: 3) adopts a single dinuclear crystal structure with only one bridging CN between the Ho- and Fe-atom. Magnetochemistry experiments establish weak antiferromagnetic interactions between Gd(III) land Ho(III)) and Fe(III) atoms. Especially the [SmFe],, complex 1 exhibits long-range magnetic ordering. T(c) = 3.5 K, and a stronger coercive force. H(c) = 1400 Oe.; Chemistry, Multidisciplinary; SCI(E); EI; 18; ARTICLE; 4; 817-829; 84 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/211470] ![]() |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Yan, B,Chen, Z. Cyano-bridged aqua(N,N-dimethylacetamide)(cyanoiron)lanthanides from samarium, gadolinium, or holmium nitrate and potassium hexacyanoferrate: Crystal structures and magnetochemistry[J]. 瑞士化学会志,2001. |
APA | Yan, B,&Chen, Z.(2001).Cyano-bridged aqua(N,N-dimethylacetamide)(cyanoiron)lanthanides from samarium, gadolinium, or holmium nitrate and potassium hexacyanoferrate: Crystal structures and magnetochemistry.瑞士化学会志. |
MLA | Yan, B,et al."Cyano-bridged aqua(N,N-dimethylacetamide)(cyanoiron)lanthanides from samarium, gadolinium, or holmium nitrate and potassium hexacyanoferrate: Crystal structures and magnetochemistry".瑞士化学会志 (2001). |
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