CAJ | 학술논문

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MnPs30.65 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0.48nm.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MnPs,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.
장과도금속배합물양리자([M(DETA)2]n+(M=Cu2+,Ni2+,Co3+;DETA=Diethylenetriamine,이을희삼알)작위객체삽입층상MnPS3층간득도료상응적3개협층화합물.통과X-사선분말연사、원소분석화홍외광보대협층화합물적결구진행료표정.결과표명,여주체MnPs30.65 nm적층간거상비교,협층화합물(Mn0.88PS3[Cu(DETA)2]0.12)적층간거확대료0.32 nm,유차추측객체[Cu(DETA)2]2+재층간이평면사방적배위형식존재,이령2개협층화합물(Mn0.79PS3[Ni(DETA)2]0.21화Mn0.74PS3[Co(DETA)2]0.17)적층간거확대료0.48nm.설명객체[(M(DETA)2]n+,M=CO3+,Ni2+)재주체층간이팔면체배위형식존재.자성측시결과표명과도금속리자[(M(DETA)2]n+(M=Cu2+,Co3+)적삽입능인기주체MnPs,적자성재35～40 K발생유순자향아철자성적전변병표현자발자화,이객체[Ni(DETA)2]2+각사협층화합물적반철자상호작용증강,억제료자발자화적발생.
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 MnawPS3[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.