Phenylalanine-a biogenic ligand with flexible η6- and η61-coordination at ruthenium(ii) centres Academic Article uri icon


MeSH Major

  • Cyclohexenes
  • Phenylalanine
  • Ruthenium


  • The reaction of (S)-2,5-dihydrophenylalanine 1 with ruthenium(III) chloride yields the μ-chloro-bridged dimeric η(6)-phenylalanine ethyl ester complex 3, which can be converted into the monomeric analogue, η(6):κ(1)-phenylalanine ethyl ester complex 12, under basic conditions. Studies were carried out to determine the stability and reactivity of complexes bearing η(6)- and η(6):κ(1)-chelating phenylalanine ligands under various conditions. Reaction of 3 with ethylenediamine derivatives N-p-tosylethylenediamine or 1,4-di-N-p-tosylethylenediamine results in the formation of monomeric η(6):κ(1)-phenylalanine ethyl ester complexes 14 and 15, which could be saponified yielding complexes 16 and 17 without changing the inner coordination sphere of the metal centre. The structure of η(6):κ(1)-phenylalanine complex 17 and an N-κ(1)-phenylalanine complex 13 resulting from the reaction of 3 with an excess of pyridine were confirmed by X-ray crystallography.

publication date

  • June 28, 2013



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1039/c3dt50589h

PubMed ID

  • 23632736

Additional Document Info

start page

  • 8692

end page

  • 703


  • 42


  • 24