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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >New star-shaped trinuclear Ru(ii) polypyridine complexes of imidazo[4,5-f][1,10]phenanthroline derivatives: Syntheses, characterization, photophysical and electrochemical properties
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New star-shaped trinuclear Ru(ii) polypyridine complexes of imidazo[4,5-f][1,10]phenanthroline derivatives: Syntheses, characterization, photophysical and electrochemical properties

机译：咪唑并[4,5-f] [1,10]菲咯啉衍生物的新型星形三核Ru（ii）聚吡啶配合物：合成，表征，光物理和电化学性质

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A series of new star-shaped trinuclear Ru(ii) complexes of imidazo[4,5-f][1,10]phenanthroline derivatives, [{Ru(bpy)_2} _3{μ-mes(1,4-phO-Izphen)_3}](ClO_4) _6·4H_2O (6), [{Ru(phen)_2} _3{μ-mes(1,4-phO-Izphen)_3}](ClO_4) _6·3H_2O (7), [{Ru(bpy)_2} _3{μ-mes(1,2-phO-Izphen)_3}](ClO_4) _6·4H_2O (8), and [{Ru(phen)_2} _3{μ-mes(1,2-phO-Izphen)_3}](ClO_4) _6·3H_2O (9) [mes(1,4-phO-Izphen)_3 (4) = 2,4,6-tri methyl-1,3,5-tris(4-oxymethyl-1-yl(1H-imidazo-2-yl-[4,5-f][1,10] phenanthroline)phenyl)benzene and (mes(1,2-phO-Izphen)_3 (5) = 2,4,6-trimethyl-1,3,5-tris(2-oxymethyl-1-yl(1H-imidazo-2-yl[4,5-f][1,10] phenanthroline)phenyl)benzene] have been synthesized and characterized. Their photophysical and electrochemical properties have also been studied. The core molecule, 1,3,5-tris(bromomethyl)-2,4,6-trimethylbenzene (1) and the trialdehyde intermediate, 2,4,6-trimethyl-1,3,5-tris(4-oxymethyl-1-formylphenyl)benzene (2) are characterized by single crystal X-ray diffraction: triclinic, P1. The complexes 6-9 exhibit Ru(ii) metal centered emission at 618, 601, 615, and 605 nm, respectively, in fluid solution at room temperature. The emission profile and emission maxima are similar and independent of the excitation wavelength for each complex. The complexes 6-9 undergo metal centered oxidation and the E _(1/2) values for the Ru(ii)/Ru(iii) redox couples are 1.33, 1.34, 1.35, and 1.35 V versus Ag/Ag~+, respectively, which are cathodically shifted with respect to that of the mononuclear complex [Ru(bpy) _2(PIP)]~(2+) (PIP = 2-phenylimidazo[4,5-f][1,10] phenanthroline). The study demonstrates the versatility of the highly symmetric trinucleating imidazo[4,5-f][1,10]phenanthroline-based core ligands 4 and 5 in forming trinuclear Ru(ii) complexes.
机译：咪唑并[4,5-f] [1,10]菲咯啉衍生物[{Ru（bpy）_2} _3 {μ-mes（1,4-phO-）的一系列新的星形三核Ru（ii）配合物Izphen）_3}]（ClO_4）_6·4H_2O（6），[{Ru（phen）_2} _3 {μ-mes（1,4-phO-Izphen）_3}]（ClO_4）_6·3H_2O（7）， [{Ru（bpy）_2} _3 {μ-mes（1,2-phO-Izphen）_3}] [ClO_4）_6·4H_2O（8）和[{Ru（phen）_2} _3 {μ-mes（ 1,2-phO-Izphen）_3}]（ClO_4）_6·3H_2O（9）[mes（1,4-phO-Izphen）_3（4）= 2,4,6-三甲基-1,3,5 -三（4-氧甲基-1-基（1H-咪唑-2-基-[4,5-f] [1,10]菲咯啉）苯基）苯和（mes（1,2-phO-Izphen）_3（ 5）= 2,4,6-三甲基-1,3,5-三（2-氧甲基-1-基（1H-咪唑-2-基[4,5-f] [1,10]菲咯啉）苯基） [合成苯]的合成和表征，并对其光物理和电化学性质进行了研究，核心分子1,3,5-三（溴甲基）-2,4,6-三甲基苯（1）和三醛中间体2， 4,6-三甲基-1,3,5-三（4-氧甲基-1-甲酰基苯基）苯（2）用单晶X射线衍射表征：三斜晶系，P1。实施例6-9在室温下在流体溶液中分别在618、601、615和605nm处表现出Ru（ii）金属中心发射。发射曲线和发射最大值相似，并且与每种复合物的激发波长无关。配合物6-9经历了以金属为中心的氧化，Ru（ii）/ Ru（iii）氧化还原对的E _（1/2）值相对于Ag / Ag〜+分别为1.33、1.34、1.35和1.35 V相对于单核络合物[Ru（bpy）_2（PIP）]〜（2+）（PIP = 2-苯基咪唑并[4,5-f] [1,10]菲咯啉）发生阴极移位。该研究证明了高度对称的三核咪唑并[4,5-f] [1,10]菲咯啉基核心配体4和5在形成三核Ru（ii）配合物中的多功能性。

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