Abstract
AbstractThe Schiff‐base condensation of salicylaldehyde and 4‐aminobutanehydrazide hydrochloride leads to the hydrazone‐based ligand H2salhyab containing an amino side chain. The reaction of H2salhyab ⋅ HCl with bis(acetylacetonato)dioxidomolybdenum leads to the formation of [MoO2(salhycab)(MeOH)] (H2salhycab=2‐((pyrrolidine‐2‐ylidenehydrazineylidene)methyl)phenol), whereby the amino side chain reacted with the hydrazide carbonyl group to form a cyclic amidine with a pyrrolidine ring leading a new type of tridentate hydrazone ligand with [NNO] donor set. X‐ray crystallography revealed the additional coordination of a methanol molecule at the molybdenum(VI) center which leads to the formation of hydrogen‐bonded dimers of the neutral complex in the crystal structure. The complex [MoO2(salhycab)(MeOH)] was found to be an efficient catalyst for the peroxidic oxidation of phenyl methyl sulfide.
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