Synthesis, characterization and X-ray crystal structures of two Schiff base copper(II) complexes with catalytic property
- Received: May, 2, 2025
- Revised: June, 10, 2025
- Accepted for publication: June, 16, 2025
- DOI 10.26902/JSC_id151560
- EDN: EAICUB
- Views: 113
1 School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, P. R. China
2 Department of Architectural Engineering, Sichuan Vocational and Technical College of Communications, Chengdu, P. R. China
Two new copper(II) complexes, [Cu2(La)2(OAc)2]·2H2O (1) and [Cu(Lb)2] (2), where La and Lb
are the deprotonated monoanionic form of 5-bromo-2-(ethylaminoethylimino)methyl)phenol (HLa) and 5-bromo-2-cyclohexyliminomethylphenol (HLb), respectively, have been synthesized and characterized by elemental analysis, infrared and electronic spectroscopy. Structures of both complexes were further determined by single crystal X-ray diffraction. Complexes 1 and 2 were synthesized from copper acetate with HLa and HLb, respectively in methanol. The Cu atoms in complex 1 are in octahedral coordination, while that in 2 is in square planar coordination. The two complexes have high catalytic property for the epoxidation of styrene, with conversions over 90 % and selectivity over 85 %.
This is an excerpt of the article
SYNTHESIS, CHARACTERIZATION AND X-RAY CRYSTAL STRUCTURES OF
TWO SCHIFF BASE COPPER(II) COMPLEXES WITH CATALYTIC PROPERTY.
Full text of the paper is published in Journal of Structural Chemistry.
DOI: 10.1134/S0022476625090094
Keywords: Schiff base, copper complex, crystal structure, catalytic property
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