Reaction of metal carbonyls with 2-hydroxy-1-naphthaldeyde methanesulfonylhydrazone and characterization of the substitution products

Abstract

Five new complexes, [M(CO)₅(nafmsh)] [M = Cr, 1; Mo, 2; W, 3], [Re(CO)₄Br(nafmsh)], 4 and [Mn(CO)₃(nafmsh)], 5 have been synthesized by the photochemical reaction of metal carbonyls [M(CO)₆] (M = Cr, Mo, W), [Re(CO)₅Br], and [Mn(CO)₃Cp] with 2-hydroxy-1-naphthaldehyde methanesulfonylhydrazone (nafmsh). The complexes have been characterized by elemental analysis, EI mass spectrometry, FT-IR, and ¹H NMR spectroscopy. The spectroscopic studies show nafmsh is a monodentate ligand coordinating via the imine N donor atom in 1–4 and as a tridentate ligand in 5.

Keywords:

• Photosubstitution
• Methanesulfonylhydrazone
• Metal carbonyls, Cyclopentadienyl

Acknowledgements

This research was supported by Gazi University Research Fund under Project No. 05-98/24. We thank BP (Turkey) for the provision of photochemical apparatus and Research Foundation of Ege. We thank TUBİTAK for allocation of time at the NMR, mass spectra and elemental analyses.