A donor-acceptor tetrathiafulvalene ligand complexed to iron(II): synthesis, electrochemistry, and spectroscopy of [Fe(phen)2(TTF-dppz)](PF6)2

Inorg Chem. 2013 Jan 7;52(1):306-12. doi: 10.1021/ic3019277. Epub 2012 Dec 18.

Abstract

The synthesis and photophysical properties of the complex [Fe(phen)(2)(TTF-dppz)](2+) (TTF-dppz = 4',5'-bis-(propylthio)tetrathiafulvenyl[i]dipyrido[3,2-a:2',3'-c]phenazine, phen = 1,10-phenanthroline) are described. In this complex, excitation into the metal-ligand charge transfer bands results in the population of a high-spin state of iron(II), with a decay lifetime of approximately 1.5 ns, in dichloromethane, at room temperature. An intraligand charge transfer state can also be obtained and has a lifetime of 38 ps. A mechanism for the different states reached is proposed based on transient absorption spectroscopy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrochemical Techniques*
  • Ferrous Compounds / chemical synthesis*
  • Ferrous Compounds / chemistry*
  • Heterocyclic Compounds / chemistry*
  • Ligands
  • Molecular Structure
  • Spectrophotometry, Ultraviolet

Substances

  • (Fe(1,10-phenanthroline)2(4',5'-bis-(propylthio)tetrathiafulvenyl dipyrido(3,2-a-2',3'-c)-phenazine))(PF6)2
  • Ferrous Compounds
  • Heterocyclic Compounds
  • Ligands
  • tetrathiafulvalene