期刊
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
卷 647, 期 8, 页码 937-942出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/zaac.202000440
关键词
Molybdenum; Hydrazone; Schiff base; Sulfoxidation; Crystal structure
资金
- Projekt DEAL
The Schiff-base condensation of salicylaldehyde and 4-aminobutanehydrazide hydrochloride resulted in a new hydrazone-based ligand H(2)salhyab, which further reacted with bis(acetylacetonato)dioxidomolybdenum to form a new tridentate hydrazone ligand [MoO2(salhycab)(MeOH)], showing efficient catalytic activity in the peroxidic oxidation of phenyl methyl sulfide.
The Schiff-base condensation of salicylaldehyde and 4-aminobutanehydrazide hydrochloride leads to the hydrazone-based ligand H(2)salhyab containing an amino side chain. The reaction of H(2)salhyab . HCl with bis(acetylacetonato)dioxidomolybdenum leads to the formation of [MoO2(salhycab)(MeOH)] (H(2)salhycab=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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