| 以[M(DETA)2)]n+(M=Cu2+, Ni2+, Co3+)为客体的MnPS3夹层化合物的合成、结构表征与磁性研究(英文) | |
| Intercalation of Cationic [M(DETA)2)]n+(M=Cu2+, Ni2+, Co3+) into Layered MnPS3: Synthesis, Characterization and Magnetic Properties | |
| 摘要: 将过渡金属配合物阳离子([M(DETA)2]n+(M=Cu2+，Ni2+，Co3+；DETA=Diethylenetriamine，二乙烯三胺)作为客体插入层状MnPS3层间得到了相应的3个夹层化合物。通过X-射线粉末衍射、元素分析和红外光谱对夹层化合物的结构进行了表征。结果表明，与主体MnPS3 0.65 nm的层间距相比较，夹层化合物(Mn0.88PS3[Cu(DETA)2]0.12)的层间距扩大了0.32 nm,由此推测客体[Cu(DETA)2]2+在层间以平面四方的配位形式存在,而另2个夹层化合物(Mn0.79PS3[Ni(DETA)2]0.21和Mn0.74PS3[Co(DETA)2]0.17)的层间距扩大了0.48 nm，说明客体[(M(DETA)2]n+，M=Co3+，Ni2+) 在主体层间以八面体配位形式存在。磁性测试结果表明过渡金属离子[(M(DETA)2]n+(M=Cu2+，Co3+)的插入能引起主体MnPS3的磁性在35~40 K发生由顺磁向亚铁磁性的转变并表现自发磁化，而客体[Ni(DETA)2]2+却使夹层化合物的反铁磁相互作用增强，抑制了自发磁化的发生。 | |
| 关键词: 夹层作用 层状MnPS3 二乙烯三胺 配合物 磁性 | |
| 基金项目: | |
| Abstract: Three intercalation compounds based on the insertion of cationic complex guests ([M(DETA)2]n+(M=Cu2+, Ni2+, Co3+; DETA=Diethylenetriamine) into layered MnPS3 have been synthesized and characterized with X-ray powder diffraction, elemental analysis and infrared spectroscopy. Compared with pristine MnPS3 the lattice spacing of Mn0.88PS3[Cu(DETA)2]0.12 is expanded by about 0.32 nm suggesting that cationic [Cu(DETA)2]2+ guest exists in square geometry at the interlayer space of MnPS3. But 0.48 nm of the lattice expansion for Mn0.79PS3[Ni(DETA)2]0.21 and Mn0.74PS3[Co(DETA)2]0.17 indicates that [M(DETA)2]n+(M=Co3+, Ni2+) adopts the octahedral geometry. The magnetic measurements indicate that the intercalation of [M(DETA)2]n+(M=Cu2+, Co3+) can induce the magnetic phase transition of MnPS3 slab from paramagnetism to ferrimagnetism at low temperature, but the insertion of [Ni(DETA)2]2+ strengthens antiferromagntic interaction of the spins that suppresses the occurrence of spontaneous magnetization. | |
| Keywords: intercalation layered MnPS3 diethylenetriamine metal complex magnetic property | |
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| 颜小兵,陈兴国,秦金贵,INOKUCHI Makoto.以[M(DETA)2)]n+(M=Cu2+, Ni2+, Co3+)为客体的MnPS3夹层化合物的合成、结构表征与磁性研究(英文)[J].无机化学学报,2010,26(12):2237-2242. | |
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