Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, United States.
Inorg Chem. 2011 Oct 3;50(19):9345-53. doi: 10.1021/ic200929r. Epub 2011 Sep 8.
A series of dendronized-Ru(2) compounds were prepared using the Cu(I)-catalyzed 1,3-dipolar cycloaddition (click reaction) between the terminal azides of azidopoly(benzyl ether) dendrons ([D(n)]-N(3), n = 0-3) and Ru(2) units bearing one or two terminal ethynes, Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-4-C(2)H)(m)Cl with m = 1 and 2, and D(3,5-Cl(2)Ph)F and DMBA-4-C(2)H as N,N'-bis(3,5-dichloro-phenyl)formamidinate and N,N'-dimethyl-4-ethynylbenzamidinate, respectively. The resultant Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-D(n))(m)Cl compounds were further functionalized by the axial ligand displacement of Cl by -C(2)Ph to yield new compounds Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-D(n))(m)(C(2)Ph)(2) (where m = 1 and 2; n = 0 and 1). All Ru(2) compounds reported herein were analyzed via mass spectrometry, voltammetry, and UV-visible and fluorescence spectroscopy. Density-functional theory (DFT) calculations were performed on a model compound to gain more insight into the molecular orbital energy levels possibly associated with the photophysical data obtained and presented herein.
一系列的树状-Ru(2)化合物是通过末端叠氮化物的 Cu(I)-催化 1,3-偶极环加成（点击反应）来制备的，其中末端叠氮化物来自于叠氮聚（苄基醚）树枝状物([D(n)]-N(3), n = 0-3)和 Ru(2)单元，这些 Ru(2)单元带有一个或两个末端炔基，Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-4-C(2)H)(m)Cl 中 m = 1 和 2，而 D(3,5-Cl(2)Ph)F 和 DMBA-4-C(2)H 分别为 N,N'-双(3,5-二氯-苯基)甲脒基和 N,N'-二甲基-4-乙炔基苯甲酰胺基。所得的 Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-D(n))(m)Cl 化合物通过轴向配体 Cl 的取代进一步官能化，生成新的化合物 Ru(2)(D(3,5-Cl(2)Ph)F)(4-m)(DMBA-D(n))(m)(C(2)Ph)(2)（其中 m = 1 和 2；n = 0 和 1）。本文报道的所有 Ru(2)化合物均通过质谱、伏安法、紫外可见光谱和荧光光谱进行了分析。对模型化合物进行了密度泛函理论（DFT）计算，以更深入地了解可能与本文获得和呈现的光物理数据相关的分子轨道能级。
