两个双核稀土金属配位聚合物的溶剂热合成、晶体结构及荧光性质

发布时间：2018-04-10 02:38

  本文选题：镧系配合物　切入点：荧光　出处：《无机化学学报》2017年09期

【摘要】：以顺丁烯二酰肼(MH)为配体,通过溶剂热法合成了配位聚合物[Dy2(MH)6]n·0.5DMF(1)和[Eu2(MH)6]n(2)。通过红外光谱、X射线粉末衍射、X射线单晶衍射表征了2个晶体的结构。配合物1和2都是三斜晶系,P1空间群。以双核结构为顶点作图得到配合物的空间拓扑结构,拓扑类型为tsi。配合物的热重分析结果表明2个配合物在315℃左右仍有较好的热稳定性。固体荧光结果表明配合物2在激发波长为375 nm时有对应Eu~(3+)的5D0→7FJ(J=0~4)能级能量的5个发射峰,最强发射峰波长为616 nm,归属为Eu~(3+)的5D0→7F2能级跃迁。
[Abstract]:The coordination polymer [Dy2(MH)6] n 0.5DMF ~ (1) and [Eu2(MH)6] n ~ (2 +) were synthesized by solvothermal method with maleic hydrazide (MH) as ligand.The structures of two crystals were characterized by X-ray powder diffraction and X-ray single crystal diffraction.Complexes 1 and 2 are space groups of trichroic systems.The spatial topological structure of the complex is obtained by using the binuclear structure as the vertex, and the topological type is tsi.The thermogravimetric analysis results show that the two complexes still have good thermal stability at 315 鈩，

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