1217364-01-6Relevant academic research and scientific papers
Copper(I) complexes of 2-methoxy-(5-trifluoromethyl-phenyl)-pyridine-2yl-methylene-amine: Impact of phosphine ancillary ligands on luminescence and catalytic properties of the copper(I) complexes
Chavan,Sawant,Pawal,More
, p. 192 - 199 (2016/01/15)
Some copper(I) complexes of the type [Cu(L)(PPh3)2]X (X = Cl (1a), CN (1b), ClO4 (1c), BF4 (1d)) and [Cu(L)(dppe)]X (X = Cl (2a), CN (2b), ClO4 (2c) and BF4 (2d)) [where L = 2-methoxy-(5-trifluoromethyl-phenyl)-pyridine-2yl-methylene-amine; PPh3 = triphenylphosphine; dppe = 1,2-bis(diphenylphosphino)ethane] have been prepared and characterized on the basis of elemental analyses, IR, UV-Vis, 1H NMR and 31P NMR spectral studies. The representative complex of the series 1d and 2c are characterized by single crystal X-ray diffraction which reveal that, in each complex the central copper(I) ion assumes the irregular pseudo-tetrahedral geometry. All the complexes display a weak MLCT that varies considerably with phosphine ligands. Quasireversible redox behavior is accounted for all complexes corresponding to Cu(I)/Cu(II) couple and is sensitive to phosphine ligands. All the complexes exhibit blue-green emission originate from intra-ligand charge transfer (ILCT), ligand to ligand charge transfer (LLCT) transitions or mixture of them and vary markedly with the phosphine ligands. The copper(I) complexes with dppe ancillary ligand shows greater activity for the amination of iodobenzene as compared to PPh3 ancillary ligand in the complexes.
Mixed-ligand complexes of copper(I) with Schiff base and triphenylphosphine: Effective catalysts for the amination of aryl halide
Chavan,Sawant,Sawant,Lahiri
, p. 1373 - 1376 (2011/10/05)
Some copper(I) complexes of the type [Cu(L)(PPh3)2]X (1-4) [where L = 2-chloro-(5-trifluoromethyl-phenyl)-pyridine-2-ylethylene- amine; X = Cl-, CN-, ClO4- and BF4-] have been prepared by the condensation of 3-amino-4-chloro-benzotrifluoride with 2-acetylpyridine followed by the reaction with [Cu(MeCN)2(PPh3)2]Cl, [Cu(MeCN) 2(PPh3)2]CN, [Cu(MeCN)2(PPh 3)2]ClO4 and [Cu(MeCN)2(PPh 3)2]BF4. All the complexes 1-4 were characterized on the basis of elemental analysis, IR, UV-visible and 1H NMR spectral studies. The representative complex of the compound 3 has been characterized by single crystal X-ray diffraction which reveals that the central copper(I) ion assumes highly distorted tetrahedral geometry. All the complexes worked as effective catalyst for the amination of aryl halide.
Synthesis, characterization and catalytic study of Schiff base copper(I) complexes for the amination of aryl halide
Sawant,Gaikwad,Sawant,Yamgar,Chavan
, p. 632 - 635 (2009/10/17)
A series of Schiff base copper(I) complexes [Cu(L1)(PPh3)2]X (1a-d) and [Cu(L2)(PPh3)2]X (2a-d) [where L1 - (3-trifluoromethyl-phenyl)-pyridine-2-ylmethylene-amine and L2/s
