关键词: 钌配合物, 联吡啶类(3, 2-a:2'-3'-c)吩嗪配体, 10, 13-芳香基取代

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