Transition Metal Chemistry

, Volume 44, Issue 6, pp 515–524 | Cite as

Synthesis, characterization, photophysical, and redox properties of three trinuclear Ru(II) polypyridyl complexes possessing 5-amino-1,10-phenanthroline ligands

  • Chixian He
  • Shiwen Yu
  • Shuye Ma
  • Feixiang ChengEmail author


Three ruthenium(II) polypyridyl complexes with 5-amino-1,10-phenanthroline ligands have been successfully designed and synthesized. They have been fully characterized by ESI-MS, ESI-HRMS, 1H NMR, and elemental analyses. The photophysical and electrochemical properties of the three complexes have been investigated in organic solvent. The geometrical configuration and the electron density distribution in the frontier molecular orbitals of the three complexes have been studied. The three complexes show metal-to-ligand charge transfer (1MLCT) absorption at 445 nm, and intense triplet metal-to-ligand (3MLCT) emission at around 619 nm in fluid solution at 298 K and 580 nm in low-temperature glass. Electrochemical studies of the three complexes are consistent with one RuIII/II reversible couple at around 1.31 V accompanied by three ligand-centered reduction couples.



We thank the Application Basis Research Project of Yunnan Province Science and Technology Department (2016FD079), the scientific research project of Yunnan Province Education department (2017ZDX147), and IRTSTYN for providing the financial support.

Supplementary material

11243_2019_309_MOESM1_ESM.docx (7.9 mb)
Supplementary material 1 (DOCX 8087 kb)


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution ControlQujing Normal UniversityQujingChina
  2. 2.College of Chemistry and Environment ScienceQujing Normal UniversityQujingChina
  3. 3.Qujing Qilin Vocational and Technical SchoolQujingChina

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