| 含氮氧自由基的Gd,Tb,Dy配合物的合成、结构及磁性 | |
| Gd(Ⅲ), Tb(Ⅲ) and Dy(Ⅲ) Complexes Based on a Nitronyl Nitroxide Radical: Syntheses, Structures and Magnetic Properties | |
| 摘要: 合成了一个新颖的氮氧自由基配体,并用该配体合成了3例未见文献报道的氮氧自由基-稀土三自旋单核配合物Ln(hfac)3(NIT-Ph-4-OCHCH3CH3)2(Ln=Gd(1), Tb(2), Dy(3); hfac=六氟乙酰丙酮; NIT-Ph-4-OCHCH3CH3=4,4,5,5-四甲基-2-(4'-异丙氧基苯基)-咪唑啉-3-氧化-1-氧基自由基)。单晶结构分析表明配合物1、2、3拥有相似的自由基-稀土-自由基单核结构。对配合物的磁性测试结果表明自由基与稀土之间存在着铁磁相互作用。自由基与自由基之间存在着反铁磁相互作用。 | |
| 关键词: 氮氧自由基 稀土 晶体结构 磁性 | |
| 基金项目: 广东省高校创新强校项目(No.504-20000158)、广东省教育厅科技创新项目(No.2013KJCX0193)和广东省大创项目(No. 603-60300346)资助。 | |
| Abstract: One novel nitronyl nitroxide radical and its three mononuclear tri-spin compounds Ln(hfac)3(NIT-Ph-4-OCHCH3CH3)2(Ln=Gd(1), Tb(2), Dy(3); hfac=hexafluoroacetylacetonate; NIT-Ph-4-OCHCH3CH3=2-(4-isopropoxyphenyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide) have been successfully prepared and characterized. Single crystal X-ray crystallographic analyses reveal that complexes 1, 2, and 3 shows similar radical-Ln(Ⅲ)-radical structures, which ar composed of one Ln(hfac)3 units and two NIT-Ph-4-OCHCH3CH3 radicals. Magnetic studies reveal that ferromagnetic interactions (between intramolecular Ln and radical) and antiferromagnetic interactions (between the intramolecular radicals) are coexist in these complexes. CCDC: 985443, 1; 1043098, 2; 985444, 3. | |
| Keywords: nitronyl nitroxide radical lanthanides crystal structure magnetic properties | |
| 投稿时间：2015-06-20 修订日期：2015-12-01 | |
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| 胡鹏,吴燕妮,黄期晓,连思绵,付兴慧,何高鹏,陈侠敏.含氮氧自由基的Gd,Tb,Dy配合物的合成、结构及磁性[J].无机化学学报,2016,32(2):297-304. | |
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