Synthesis, characterization, and properties of binuclear ruthenium complexes with dendritic side chains on their bridges

Wu, Xiang; Liang, Jin; Xia, Jiang; Yin, Jun; Jin, Shan; Yu, Guang‐Ao; Liu, Sheng Hua

doi:10.1016/j.ica.2011.01.075

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…Metal centers may function as connectors, branching points, or terminal (surface) centers, and can be located at either specific or random loci within dendritic architectures . While metallodendrimer research has been dominated by monometallic species, those based on bimetallic species have been explored by Luck and Liwporncharoenvong, Liu et al, Deschenaux et al, and us . The recent success in ligand modification on the periphery of diruthenium compounds has provided easy access for functionalizing Ru 2 units with a variety of functional groups including terminal alkynes and olefins, − and the presence of these reactive functional groups provides venues for further covalent modifications.…”

Section: Introductionmentioning

confidence: 99%

Decorating Diruthenium Compounds with Fréchet Dendrons via the Click Reaction

et al. 2011

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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.

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