Ruthenium (II) polypyridyl complexes based on bipyridine and two novel diimine ligands with carrier-transporting unit: synthesis, photoluminescence and redox properties
作者:Jing Wu、Hong-Yan Li、Ling-Chen Kang、Dong-Ping Li、Qiu-Lei Xu、Yu-Cheng Zhu、Yun-Mei Tao、You-Xuan Zheng、Jing-Lin Zuo、Xiao-Zeng You
DOI:10.1016/j.jorganchem.2010.04.037
日期:2010.8
A series of ruthenium (II) complexes, [Ru(bpy)2L]X2 (L = L1, L2; X = Cl−, PF6−, SCN−), were synthesized based on bipyridine and two novel diimine ligands L1 and L2 (L1 = 1-(4-5′-phenyl-1,3,4-oxadiazolylphenyl)-2-pyridinyl-benzoimidazole, L2 = 1-(4-carbazolylphenyl)-2-pyridinylbenzimidazole); and the crystal structure of [Ru(bpy)2L1]Cl2 was also described. [Ru(bpy)2(Pybm)]X2 (Pybm = 2-(2-pyridine)benzimidazole)
一系列钌(II)配合物的,的[Ru(联吡啶)2 L] X 2(大号 = L1,L2; X =氯-,PF 6 -,SCN - ),是基于吡啶和两种新型二亚胺合成配位体L1 L2(L1 = 1-(4-5′-苯基-1,3,4-恶二唑基苯基)-2-吡啶基-苯并咪唑,L2 = 1-(4-咔唑基苯基)-2-吡啶基苯并咪唑);并且还描述了[Ru(bpy)2 L1] Cl 2的晶体结构。还制备了[Ru(bpy)2(Pybm)] X 2(Pybm = 2-(2-吡啶)苯并咪唑)复合物作为参考样品。在UV-vis吸收光谱中,有一个强π → π*过渡和两个dπ(Ru)→ π *过渡。通过比较[Ru(bpy)2 L] X(L = L1,L2)与参考配合物之间的光致发光性质,我们发现具有咔唑和恶唑的载流子传输基团的配合物具有更高的发射强度和量子效率。在范围0.80-1.00 V在其每一个被分配到所述金属氧化