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Syntheses, characterization, and properties of Ru(II) complexes based on π-conjugated terpyridine ligand with tetrathiafulvalene moiety

Jie Qin, Liang Hu, Na Lei, Yan-Fei Liu, Ke-Ke Zhang, Jing-Lin Zuo


Two ruthenium(II) complexes [Ru(TTF-terpy)(terpy)][PF6]2 (1) and [Ru(TTF-terpy)2][PF6]2 (2) were synthesized by reactions of Ru(terpy)(DMSO)2Cl2 or Ru(DMSO)4Cl2 with 4-tetrathiafulvalene-2,2:6,2′′-terpyridine (TTF-terpy), respectively. The crystal structure of 1 has been determined by X-ray crystallography, showing nearly vertical configuration of TTF-terpy unit and terpy unit. In the crystal of complex 1, molecules are seized together into 1D chains via π···π stacking interactions. The electrochemical and spectroscopic properties of these compounds have been studied. The results show that these Ru(II) complexes show stepwise redox processes in solution, and are promising building blocks for the construction of multi-functional materials.


Tetrathiafulvalene; Terpyridine ligand; Redox chemistry; Spectroscopic electrochemistry

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