【摘要】 新型三元铕配合物Eu(DBM)3L1(DBM=二苯甲酰甲烷,L1=2-(3-硝基苯基)-咪唑并[4,5-f]-1,10-邻二氮杂菲)的晶体属单斜晶系,Cc空间群.中心铕离子分别与DBM配体的六个氧原子和第二配体的两个鳌合氮原子配位,形成八配位的扭曲四方反棱柱构型.配合物中性配体的共轭平面与相邻分子的DBM苯环平面(C(25),C(26),C(27),C(28),C(29))之间有明显的π-π相互作用.在紫外光激发下,配合物表现出较强的Eu3+的特征发射,第二配体对中心离子有较强的敏化发光作用.更多还原

【Abstract】 A new ternary europium complex Eu（DBM）₃L₁ [L₁=（2（3nitrophenyl）imidazo \1,10phenanthroline）,DBM=dibenzoylmethane] was synthesized and characterized by X-ray diffraction.This complex crystallized in monoclinic with space group of Cc.Each Eu³⁺ is eight coordinated with six oxygen atoms from three DBM ligands and two nitrogen atoms from neutral ligand L₁,forming a distorted square antiprism.In the crystal of this complex,there are strong intermolecular ππ stacking interactions between the neutral ligand planes and the phenyl planes of the DBM ligands.The complex typically exhibits intense red emission of Eu³⁺ion under UV excitation.更多还原