Synthesis, Crystal Structures and Catalytic Oxidation Property of Two Copper(II) Complexes Derived from 5-Bromo-2-((2-piperazin-1-ylethylimino)methyl)phenol
- 1. Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
- 2. School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, P. R. China
- 3. Department of Architectural Engineering, Sichuan Vocational and Technical College of Communications, Chengdu 611730, P. R. China
Description
Acta Chim. Slov. 2025, 72, 164–170.
Abstract
Two new copper(II) complexes, [Cu(HL)(ONO2)]NO3 (1) and [CuCl(HL)]Cl∙H2O (2), where HL is the zwitterionic form of the Schiff base 5-bromo-2-((2-piperazin-1-ylethylimino)methyl)phenol (HL), have been prepared. The Schiff base and two complexes were characterized by IR and UV-Vis spectroscopy. In addition, the free Schiff base was characterized by 1H NMR spectroscopy. Structures of the complexes were further confirmed by single crystal X-ray diffraction. The Cu atoms in the complexes are in square planar coordination. Crystal structures of both copper complexes are stabilized by hydrogen bonds. The complexes have high catalytic activity for the epoxidation of styrene, with conversions and selectivity over 90%.
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Additional details
Identifiers
- Other
- Acta Chim. Slov. 2025, 72, 164–170
- DOI
- 10.17344/acsi.2025.9182
- PMID
- 40109042
Related works
- Is identical to
- Journal article: 10.17344/acsi.2025.9182 (DOI)