Synthesis and characterization of a Ru(II) complex with functionalized phenanthroline ligands having single-double linked anthracenyl and 1-methoxy-1-buten-3-yne moieties

Molecules. 2010 Oct 27;15(11):7570-81. doi: 10.3390/molecules15117570.

Abstract

Two series of bidentate polypyridine ligands, made of phenanthroline chelating subunits having substituted mono-and di-anthracenyl groups, and 1-methoxy-1-buten-3-yne at the 4 and 7-positions with the corresponding heteroleptic Ru(II) complex have been synthesized and characterized. The complex is formulated as [(Ru(L(1))(L(2))(NCS)(2))], (where L(1 )= 4-(9-dianthracenyl-10-(2,3-dimethylacrylic acid)-7-(9-anthracenyl-10-(2,3-dimethylacrylic acid)-1,10-phenanthroline and L(2) = 4,7-bis(1-methoxy-1-buten-3-yne)-1,10-phenanthroline). The Ru(II) complex shows characteristic broad and intense metal-to-ligand charge transfer (MLCT) bands absorption and appreciable photoluminescence spanning the visible region. The ligands and complex were characterized by FT-IR, 1H, 13C NMR spectroscopy, UV-Vis, photoluminescence and elemental analysis (see in supplementary materials). The anchoring groups in both ligands have allowed an extended delocalization of acceptor orbital of the metal-to-ligand charge-transfer (MLCT) excited state.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anthracenes / chemistry*
  • Magnetic Resonance Spectroscopy
  • Molecular Structure
  • Phenanthrolines / chemistry*
  • Ruthenium Compounds / chemical synthesis*
  • Ruthenium Compounds / chemistry*
  • Spectroscopy, Fourier Transform Infrared

Substances

  • Anthracenes
  • Phenanthrolines
  • Ruthenium Compounds
  • 1,10-phenanthroline