نتایج جستجو برای: mn salen complexes

تعداد نتایج: 175545  

We have prepared and characterized a few Mn (III) complexes by using a few bidentate and tridentate ligands. Spectra of the manganese (Abstract We have prepared and characterized a few Mn (III) complexes by using a few bidentate and tridentate ligands. Spectra of the manganese (III) ion in a variety of molecular environments are reported . On the basis of solution spectra, some of these co...

Journal: :journal of sciences islamic republic of iran 0

we have prepared and characterized a few mn (iii) complexes by using a few bidentate and tridentate ligands. spectra of the manganese (abstract we have prepared and characterized a few mn (iii) complexes by using a few bidentate and tridentate ligands. spectra of the manganese (iii) ion in a variety of molecular environments are reported . on the basis of solution spectra, some of these complex...

2012
Michael North

Over the last six years, highly active catalysts for the synthesis of cyclic carbonates from epoxides and carbon dioxide have been developed. Initial studies showed that bimetallic aluminium(salen) complexes [Al(salen)]2O formed active catalysts and kinetic studies allowed the catalytic cycle to be determined. The catalysts could be immobilized on silica, allowing them to be used in a gas phase...

In this research the synthesis of [Co(Salen)(PPh3)(H2O)]4[Fe(CN)6] and [Co(Salophen)(PPh3)(H2O)]4[Fe(CN)6] schiff base complexes was reported. Co3O4/CoFe2O4 magnetic nanoparticles were prepared by calcination of these complexes at 500, 550 and 600°C. Precursor complexes were identified by FT-IR and UV-Vis spectroscopy and their thermal behavior was studied via TG/DTA. Nanomagnetic samples were ...

Journal: :Molecules 2010
Maria E Amato Francesco P Ballistreri Andrea Pappalardo Gaetano A Tomaselli Rosa M Toscano

A novel chiral macrocyclic ligand incorporating a chiral salen moiety into a framework containing two biphenyl units was synthesized. Structural properties and conformational aspects of the free ligand and an UO2 complex were studied by using NMR spectroscopy in solution and MM calculations. The Mn(III) complex was tested as catalyst in enantioselective oxidation of prochiral unfunctionalized o...

2015
Bryan Brautigam Chelsea Herholdt William Farnsworth Ellen Brudi Eric McDonald Guang Wu Stephen Contakes

The title compound, [CoFe(C5H5)(C16H14N2O2)(C11H9N2O)], was prepared as an air-stable red-brown solid by mixing equimolar amounts of {2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}cobalt(II) and N-ferrocenylisonicotinamide in dry di-chloro-methane under nitro-gen and was characterized by ESI-MS, IR, and single-crystal X-ray diffraction. The structure at 100 K has triclinic (P-1...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1995

2005
Hongjun Zhu Mei Wang Chengbing Ma Bo Li Changneng Chen Licheng Sun

A series of salen-type zirconium complexes of the general formula LZrCl2 (L = N,N 0-ethylenebis(salicylideneiminate), 3a; N, N 0-ethylenebis(3,5-di-tert-butylsalicylideneiminate), 3b; N,N 0-ethylenebis(5-methoxysalicylideneiminate), 3c; N,N 0-ethylenebis(5chlorosalicylideneiminate), 3d; N,N 0-ethylenebis(5-nitrosalicylideneiminate), 3e; N,N 0-o-phenylenebis(salicylideneiminate), 4a; N,N 0-o-phe...

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