无机-有机纳米复合材料:有机氮氧自由基/MnPS3夹层物的合成与磁性(英文) |
Synthesis and Magnetism of an Inorganic-organic Nanocomposite: Nitronyl-nitroxide Radical Intercalated into Layered MnPS3 |
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摘要: 合成了一个无机/有机纳米复合物(MPYNN)0.14Mn0.93PS3,即有机氮氧自由基MPYNN(N-甲基吡啶阳离子自由基)的MnPS3夹层化合物。通过X-射线粉末衍射和红外光谱等对其结构进行了表征,根据其0.56 nm的层间距扩大值推测夹层化合物中的客体分子在层间采取了分子平面近乎垂直于主体层的排列方式。通过SQUID测试了所得到的夹层化合物的磁性,结果表明夹层化合物(MPYNN)0.14< |
关键词: 夹层 氮氧自由基 层状MnPS3 磁性 |
基金项目: |
Abstract: The synthesis and magnetism of an intercalation compound were studied based on 2-(4′-N-methylpyridini-um)-4,4,5,5-tetramethyl-imidazolinyl-1-oxyl-3-oxide (Methylpyridinium nitronyl nitroxide, MPYNN) radical into lay-ered MnPS3. The lattice expansion of 0.56 nm suggests that the guest molecule plane of pyridine in MPYNN is arranged almost perpendicular to the host layer. Magnetic measurements by SQUID indicates that the intercalation compound of (MPYNN)0.14Mn0.93PS3 exhibits paramagnetism above 10 K, and then spontaneous magnetization occurs at 7 K. |
Keywords: intercalation nitronyl nitroxide radical layered MnPS3 magnetic property |
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周惠琼,苏 旭,陈兴国,井口真,张德清,秦金贵.无机-有机纳米复合材料:有机氮氧自由基/MnPS3夹层物的合成与磁性(英文)[J].无机化学学报,2008,24(8):1261-1264. |
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