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Heteroleptic Ruthenium(II) 2,2'-Bipyridine Complexes Incorporating Bipyrazolate and 2-Pyridyl Pyrazolate Ancillaries

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Abstract

Treatment of 5,5′-di(trifluoromethyl)-3,3′-bipyrazole (BipzH2) with cis-[RuCl2(Bipy)2]·2H2O (Bipy = 2,2′-bipyridine) or cis-[RuCl2(Dmbipy)2]·2H2O (Dmbpy = 4,4′-dimethyl-2,2′-bipyridine) afforded two charge-neutral ruthenium(II) complexes [Ru(Bipz)(Bipy)2] (I) and [Ru(Bipz)(Dmbipy)2] (II), respectively. Reactions of 3-trifluoromethyl-5-(2-pyridyl)pyrazole (PypzH) and cis-[RuCl2(Bipy)2]·2H2O or cis-[RuCl2(Dmbipy)2]·2H2O in the presence of NH4PF6 produced two cationic ruthenium(II) complexes [Ru(Pypz)(Bipy)2](PF6) (III) and [Ru(Pypz)(Dmbipy)2](PF6) (IV), respectively. Four complexes were spectroscopically characterized by FTIR, UV-Vis and luminescence. The structures of I·H2O, III·H2O and IV have been also determined by single-crystal X-ray diffraction (CIF files CCDC nos. 1935282–1935284, respectively).

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Funding

This project was supported by the Natural Science Foundation of China (21372007).

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Authors and Affiliations

  1. Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, 243002 , Ma’anshan, Anhui, P.R. China

    M. L. Cheng, L. H. Tang, Z. Qian, A. Q. Jia & Q. F. Zhang

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  1. M. L. Cheng
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  2. L. H. Tang
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  3. Z. Qian
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  5. Q. F. Zhang
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Correspondence to Q. F. Zhang.

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Cheng, M.L., Tang, L.H., Qian, Z. et al. Heteroleptic Ruthenium(II) 2,2'-Bipyridine Complexes Incorporating Bipyrazolate and 2-Pyridyl Pyrazolate Ancillaries. Russ J Coord Chem 47, 356–364 (2021). https://doi.org/10.1134/S1070328421050018

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  • DOI: https://doi.org/10.1134/S1070328421050018

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