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基于新颖的四足水杨酰胺配体的同双核稀土配合物的合成、晶体结构及荧光性质研究
Synthesis,crystal structure and luminescence properties of homodinuclear lanthanide complexes with a new tetrapodal thenylsalicylamide ligand
【作者】 汪力; 宋学琴; 赵萌萌; 程国权; 王小润; 彭云巧;
【机构】 兰州交通大学化学与生物工程学院;
【摘要】 报道了一种新型四足水杨酰胺配体1,1,1,1-四{[(2’-(2-噻吩甲基胺甲酰基)苯氧基)]-甲基}甲烷(L)与Ln(NO3)3(Ln=Nd,Sm,Eu,Gd,Tb)形成了五个新颖的同双核稀土硝酸盐配合物Nd2L2(NO3)6(CH3OH)2]·2H2O·2CH3OH(1)和[Ln2L2(NO3)6(CH3OH)2]·4CH3OH,Ln=Sm(2),Eu(3),Gd(4),Tb(5)]。通过X射线单晶衍射、元素分析、红外光谱及摩尔电导率对配体和配合物进行了表征,并对Eu、Tb配合物的固体荧光性质进行了研究。
【Abstract】 Five new homodinuclear lanthanide(III) complexes with a new tetrapodal thenylsalicylamide ligand(L) of formulae Nd2L2(NO3)6(CH3OH)2]-2H2O-2CH3OH(1) and[Ln2L2(NO3)6(CH3OH)2]4CH3OH,Ln = Sm(2),Eu(3),Gd(4),Tb(5)]have been synthesized and characterized by single-crystal X-ray diffraction,elemental analysis,IR spectroscopy and molar conductance analysis.The two arms of L ligand arranged in a complementary head to head fashion to bind two lanthanide to form a cage-like coordination dimmer with the other two uncoordinated arms constructing interesting three dimensional supramolecular structures.The europium and terbium containing compounds both exhibit luminescence of the referring trivalent lanthanide ions,giving a red luminescence for Eu(III) and a green luminescence for Tb(III)triggered by an efficient antenna effect of the thenylsalicylamide group.
【Key words】 Salicylamide ligand; Lanthanide complex; Crystal structure; Luminescence properties;
- 【会议录名称】 甘肃省化学会第二十八届年会暨第十届中学化学教学经验交流会论文集
- 【会议名称】甘肃省化学会第二十八届年会暨第十届中学化学教学经验交流会
- 【会议时间】2013-07-20
- 【会议地点】中国甘肃庆阳
- 【分类号】O641.4
- 【主办单位】甘肃省化学会