Synthesis and Characterization of Metal Carbonyl Complexes of M(CO)₆ (M = Cr, Mo, and W), Re(CO)₅Br, and Mn(CO)₃Cp with Acetonemethanesulfonylhydrazone (amsh) and Methanesulfonylhydrazone (msh)

Abstract

Ten new complexes, [M(CO)₅(amsh)] [M = Cr; (1a), Mo; (2a), W; (3a)], [Re(CO)₄Br(amsh)] (4a), and [Mn(CO)₂(amsh)Cp] (5a) and [M(CO)₅(msh)] [M = Cr; (1b); Mo, (2b); W, (3b)], [Re(CO)₄Br(msh)], (4b), and [Mn(CO)₃(msh)], (5b), have been synthesized by the photochemical reaction of the metal carbonyls [M(CO)₆] (M = Cr, Mo, and W), [Re(CO)₅Br], and [Mn(CO)₃Cp] with acetonemethanesulfonylhydrazone (amsh) and methanesulfonyl hydrazine (msh). The complexes have been characterized by elemental analyses, mass spectrometry, FT‐IR and ¹H NMR spectroscopy. The spectroscopic studies show that amsh and msh behave as a monodentate ligands coordinating via an imine N donor atom in (1a)–(5a) and a hydrazine N donor atom in (1b)–(5b).

Keywords:

• Metal carbonyl complexes
• Methanesulfonylhydrazone
• Monodentate ligands
• Schiff base

Acknowledgments

We thank BP (Turkey) for the provision of the photochemical apparatus and the Research Foundation of Ege and Gazi University for funds. We thank TUBİTAK for allocation of time at the NMR, mass spectra and elemental analyses.