Synthesis of novel mononuclear Ru(Ⅱ) complexes with 10,13-diaryl substituents on the dppz ligands

doi:10.3969/j.issn.1006-7795.2019.02.020

Abstract

Abstract: Objective Four new ruthenium complexes with 1,10-phenanthroline ancillary ligand and 10, 13-position substituted[pyrido-(3,2-a:2',3'-c)phenazine,dppz] major ligands including thiophenyl,furanyl,[2-benzo(b)thienyl]-2,1,3-benzothiadiazole and[2-benzo(b)furanyl]-2,1,3-benzothiadiazole will be designed and synthesized. Methods Target complexes were made by condensation reaction of ruthenium complex with the appropriate 3,6-diaryl substituted benzene-1,2-diamine. The latter 3,6-diaryl substituted benzene-1,2-diamine was obtained by a Suzuki-coupling reaction, and subsequently by reduction with NaBH₄ under catalysis of CoCl₂. Results Benzothiadiazole intermediates and corresponding target complexes are well characterized by ¹H nuclear magnetic resonance (NMR), ¹³C NMR and TOF-Mass. UV-vis absorption spectra of all ruthenium complexes further verify the structures of the target complexes. Conclusion In this paper, we have synthesized four mononuclear ruthenium complexes with 1,10-phenanthroline ancillary ligand and 10, 13-diaryl including thiophenyl,furanyl,[2-benzo(b)thienyl]-2,1,3-benzothiadiazole and[2-benzo(b)furanyl]-2,1,3-benzothiadiazole, substituted dppz as major ligand through multiple steps. Both four 4,7-position substituted 2,1,3-benzothiadiazole intermediates and corresponding ruthenium complexes exhibit substantially similar absorption spectra despite the structural difference.

Key words: ruthenium complexes, pyrido-(3,2-a:2',3'-c)phenazine ligand, 10,13-diaryl substituted

CLC Number:

Li Minna. Synthesis of novel mononuclear Ru(Ⅱ) complexes with 10,13-diaryl substituents on the dppz ligands[J]. Journal of Capital Medical University, 2019, 40(2): 263-268.

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URL: https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/10.3969/j.issn.1006-7795.2019.02.020

https://journal03.magtech.org.cn/Jweb_sdykdxxb/EN/Y2019/V40/I2/263

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