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Potential of Cobalt(III) Complex in Biological Activity,;;;

T1 - Synthesis and characterization of some cobalt(III) complexes of ethylenediaminetriacetic acid

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12/01/2018 · PREPARATION OF COBALT COMPLEXES

The vitamin B12 group of molecules are the only cobalt-containing molecules (called 'cobalamins') associated with biochemistry of humans. It is the cobalt(III) ion complex that gives this water-soluble vitamin its distinctive red colour.

T1 - Synthesis and characterization of cobalt(III) complexes with sinambic amplector ligands

When the B12 molecule is inactive the cobalt is in the +3 oxidation state, but when biochemically active it adopts oxidations states of + 1 in cobalt(I) complexes and +2 in a cobalt(II) complexes.

Synthesis and characterization of cobalt(III) ..

T1 - Synthesis and characterisation of cobalt(III) complexes with 1,1-dimethylethylene-diamine (1,1-dmen) and 1,2-propanediamine (pn)

N2 - 4-Morpholine-, piperidine-, 4-piperazine- and N-methyl- piperazine-dithiocarbamate complexes of Cobalt (III) with 1, 4, 8, 11 -tetraazacyclotetradecane, of general formula [Co(Rdtc)cyclam] (C104)2, have been prepared and have been characterized. The complexes adopt cis-octahedral geometry with folded macrocyclic ligand and with the dithiocarbamate bound as a bidentate. trans-influence of the dithiocarbamate ligands was studied by NMR spectroscopy and established the order piperidine-dtc >4-morpholine-dtc>N-methyl-piperazine-dtc.

The cobalt(III) state can be stabilised by a suitable ligand and cobalt(III) complexes are usually made by oxidising a cobalt(II) salt in the presence of the stabilising ligand.

Synthesis and characterization of some cobalt(III) ..

T1 - Synthesis and electrochemical studies of cobalt(III) monohydride complexes containing pendant amines

Theoctahedral cobalt(III) complexes of general formula [Co(L)2]ClO 4 (L = L 1 for complex 1, L2 for complex 1a) are obtained from the mono-condensedligands, whereas the di-condensed ligand H 2L 4results in the formation of a unique type of mixed-ligand complex [Co(L2)(L 4)]ClO 4 ( 2) where the respectivedi- and mono-condensed Schiff bases simultaneously coordinate to themetal center.

T1 - Synthesis and electrochemistry of schiff base cobalt(III) complexes and their catalytic activity for copolymerization of epoxide andcarbon dioxide

the cobalt carbonyl Co2(CO)8 is used to catalyse the hydroformulation reaction to produce an aldehyde or alcohol from an alkene.
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  • Chloro(pyridine)cobaloxime(III) Names; Other names ..

    T1 - Synthesis and characterization of the cobalt(III) complexes of two pendant-arm cross-bridged cyclams

  • are employed for the synthesis of complexes with cobalt perchlorate

    T1 - Mixed-ligand complexes of cobalt(III) with dithiocarbamates and a cyclic tetradentate secondary amine

  • Bis(thiosemicarbazone) Complexes of Cobalt(III)

    A General Synthesis of Cobalt(III) Complexes; A New Intermediate, Na3[Co ..

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[Epub ahead of print] Bis(thiosemicarbazone) Complexes of Cobalt(III)

AB - 4-Morpholine-, piperidine-, 4-piperazine- and N-methyl- piperazine-dithiocarbamate complexes of Cobalt (III) with 1, 4, 8, 11 -tetraazacyclotetradecane, of general formula [Co(Rdtc)cyclam] (C104)2, have been prepared and have been characterized. The complexes adopt cis-octahedral geometry with folded macrocyclic ligand and with the dithiocarbamate bound as a bidentate. trans-influence of the dithiocarbamate ligands was studied by NMR spectroscopy and established the order piperidine-dtc >4-morpholine-dtc>N-methyl-piperazine-dtc.

Synthesis and structure of Co(III) complexes with 2 ..

Two new, trigonally symmetrical, triamide tripodal ligands and their complexes with the cobalt(III) ion, [1,1,1-tris-(4-amino-1-oxo-2-azabutyl)ethanato]cobalt(III)trihydrate 1 and [1,1,1-tris(4-amino-4-methyl-3-oxo-2-azapentyl)-ethanato]cobalt(III)-water- ethanol (1/8/0.5) 2 have been prepared. The hexadentate structures of the neutral, trigonal, triamido complexes have been established by an X-ray study of 1 and 13C NMR spectrometry of both molecules. The chemical, spectroscopic and

Synthesis and Properties of a Cobalt Cage Complex - …

Cobalt(III) complexes of a series of substituted pyridine-capped 5,12-dioxocyclams were synthesized and fully characterized. They all underwent an irreversible one-electron [Co(III) → Co(II)] reduction between −0.95 and −1.36 SCE. Pyridine-capped cobalt(III) cyanide complex 6a formed cyanide-bridged polymetallic coordination complexes with Rh2(OAc)4 and ruthenium(II) phthalocyanine complexes.

-nonadecane)cobalt(III) perchlorate ([Co ..

4-Morpholine-, piperidine-, 4-piperazine- and N-methyl- piperazine-dithiocarbamate complexes of Cobalt (III) with 1, 4, 8, 11 -tetraazacyclotetradecane, of general formula [Co(Rdtc)cyclam] (C104)2, have been prepared and have been characterized. The complexes adopt cis-octahedral geometry with folded macrocyclic ligand and with the dithiocarbamate bound as a bidentate. trans-influence of the dithiocarbamate ligands was studied by NMR spectroscopy and established the order piperidine-dtc >4-morpholine-dtc>N-methyl-piperazine-dtc.

New transition metal complex of Cobalt(III) of the ..

With Ru(bpy)32+ as the photosensitizer and 1,3-dimethyl-2-phenyl-2,3-dihydro-1-benzo[]imidazole as the sacrificial reductant in CH3CN/triethanolamine solution under visible-light excitation (blue light-emitting diode), a turnover number (TON) for CO as high as 2660 with 98% selectivity can be achieved for the cobalt catalyst.

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