Reaction of LnCl3·6H2O with the benzimidazole based ligand 2-(1H-benzoimidazol-2-yl)-4-bromo-6-methoxy-phenol (HL) in EtOH or MeOH under reflux gave dinuclear complexes of formula [Ln2(HL)2Cl6(solv)4] (solv = EtOH or MeOH) with a ligandâ:âmetal ratio = 1â:â1 (Ln = Tb(1); Er(2); Gd(3); Yb(4)). A ligandâ:âmetal ratio of 2â:â1 under similar conditions gave the mononuclear complexes [Eu(HL)2Cl3(MeOH)] (5) and [Ln(HL)2(H2O)4]·3Cl (Ln = Er(6); Yb(7)). A ligandâ:âmetal stoichiometry of 4â:â1 gave complexes [Ln(HL)4H2O]·3Cl (Ln = Nd(8); Gd (9); Eu(10)). The compounds have been structurally characterized by single crystal X-ray diffraction studies and their photophysical properties investigated.
                                    LnCl3·6    与
苯并咪唑基
配体 2-(1H-
苯并咪唑-2-基)-4-
溴-6-甲氧基-
苯酚 (HL) 在 EtOH 或 MeOH 中回流反应,得到式 [Ln2(HL) 的双核配合物2Cl6(solv)4](溶剂 = EtOH 或 MeOH),
配体 -: - 
金属比率 = 1 -: -1 (Ln = Tb(1); Er(2); Gd(3)
钇(4))。在类似条件下
配体-:-
金属比例为 2-:-1 得到单核配合物 [Eu(HL)2Cl3(MeOH)] (5) 和 [Ln(HL)2(
H2O)4 ]·3Cl (Ln = Er(6); Yb(7))。
配体-:-
金属
化学计量为4-:-1 得到配合物[Ln(HL)4   ]·3Cl (Ln = Nd(8); Gd (9); Eu(10))。这些化合物已通过单晶 X 射线衍射研究进行了结构表征,并研究了它们的光物理性质。