Synthesis, spectral and structural characterization of iron chalcogenomalonato complexes CpFe(CO)₂ECOCH₂CO₂R (E = S, Se)

Abstract

The synthesis of CpFe(CO)₂ECOCH₂CO₂R [E = S (1), Se (2); R = Me (a), Et (b)] was achieved by treating (µ-E_x)[CpFe(CO)₂]₂ (E = S, x = 2–4, Se, x = 1) with alkyl malonyl chlorides at ambient temperature. The synthesized compounds were characterized by elemental analysis, FT-IR, ¹H and ¹³C NMR spectroscopy as well as with UV–Vis spectroscopic techniques. The molecular structures of 1a and 2a were determined by single crystal X-ray diffraction studies and reveal that the two compounds are monomeric in the solid state with the iron center located in a distorted octahedral environment.

GRAPHICAL ABSTRACT

Keywords:

• Iron
• synthesis
• structure
• spectroscopy
• chalcogenomalonate

Additional information

Funding

M.E.-k. thanks the Alexander von Humboldt Foundation (Germany) for scholarship and Jordan University of Science and Technology for support.