Synthesis, characterization and X-ray crystal structures
of 2-chloro-N'-(2-hydroxy-5-methoxybenzylidene)benzohydrazide
and its oxidovanadium(V) complexes
with catalytic oxidation property
- Received: September, 11, 2024
- Revised: September, 17, 2024
- Accepted for publication: September, 18, 2024
- DOI 10.26902/JSC_id138129
- EDN: CVJMEU
- Views: 119
1 Department of Architectural Engineering, Sichuan Vocational and Technical College of Communications, Chengdu, P. R. China
2 School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, P. R. China
A new aroylhydrazone compound 2-chloro-N'-(2-hydroxy-5-methoxybenzylidene)benzohydrazide (H2L) was synthesized. With the aroylhydrazone compound and 2-hydroxybenzohydroxamic acid (HLa) or maltol (HLb) as ligands, two new oxidovanadium(V) complexes [VOLLa]·CH3OH (1) and [VOLLb] (2) were synthesized. Both the aroylhydrazone and the complexes have been characterized by elemental analysis, IR, UV–Vis and 1H NMR spectra, as well as single crystal X-ray determination. X-ray analysis indicates that the V atoms in the complexes are in octahedral coordination. Crystal structures of H2L
and the complexes are stabilized by hydrogen bonds. Thermal analysis of the complexes
was performed. The complexes show effective catalytic property for the
epoxidation of styrene, with conversion over 80 % and selectivity over
90 %.
Keywords: vanadium complex, hydrazone ligand, crystal structure, catalytic property
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Импакт-фактор 2023 1.2 |
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Срок опубликования 4 мес |
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