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Synthesis and structural characterization of trifluoromethyl-substituted β-ketoimino copper(II) complex and its catalytic behavior for methyl acrylate polymerization.
- Source :
-
Russian Journal of Coordination Chemistry . Aug2015, Vol. 41 Issue 8, p543-548. 6p. - Publication Year :
- 2015
-
Abstract
- A new trifluoromethyl-substituted bis(β-ketoimino)copper complex ( II) was synthesized and characterized by FTIR, elemental analysis, and X-ray diffraction (CIF file CCDC no. 1023178). XRD refinement revealed that the copper complex adopted a perfect central symmetric square planar structure with the copper center coordinated by two trans β-ketoimine ligands with delocalized double bonds. On activation with modified methylaluminoxane (MMAO), the bis(β-ketoimino)copper complex can polymerize methyl acrylate effectively. Introduction of trifluoromethyl group into the N-aryl ring of the ligands, which leads to strong electron-withdrawing effect, can improve significantly the catalytic activities. The activity of II/MMAO can reach 89.4 kg/mol Cu h, which is among the highest values reported for copper complexes in acrylic monomer polymerization. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10703284
- Volume :
- 41
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Russian Journal of Coordination Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 108674773
- Full Text :
- https://doi.org/10.1134/S1070328415080096