Results 11 to 20 of about 251,192 (298)

Magnetic and spectroscopic properties of some new complexes of cobalt(II),nickel(II) and copper (II) with α-(2,6-dimethyl aniline)- 2,6-dimethyl acetanilide [PDF]

open access: yesمجلة التربية والعلم, 2005
New complexes of the general formulae [Ni(L)2X2],[M(L)2]X2 and [M(L)2SO4.1 120] where M=Ni(II),Co(l[),Cu(n);L=a-(2,6-dimethyl anilino)-2,6-dimethyl acetanalide ; X=Cl",Br",N03", have been prepared and characterized by elemental analysis, conductivity ...
Saad K.Dawood
doaj   +1 more source

Novel nanosensor of cobalt(II) and copper(II) constructed from graphene quantum dots modified with Eriochrome Black T

open access: yesScientific Reports, 2022
Detection of heavy transition metals is of importance protecting humans and the environment from their toxicity. Amongst them, copper(II) and cobalt(II) need more attention due to their wide applications in industry, in which exposures with excess ...
Leila Vahab, Sajjad Keshipour
doaj   +1 more source

Tris(ethylenediamine)cobalt(II) dichloride [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2013
The title compound, [Co(II)(C2H8N2)3]Cl2, was obtained unexpectedly as the product of an attempted solvothermal synthesis of cobalt selenide from the elements in the presence of NH4Cl in ethyl-enedi-amine solvent. The three chelate rings of the distorted octa-hedral [Co(C2H8N2)3](2+) complex cation adopt twisted conformations about their C-C bonds. The
Cooke, Kristin   +2 more
openaire   +5 more sources

Visible and Infrared Spectroelectrochemistry of Cobalt Porphinones and Porphinediones [PDF]

open access: yes, 2012
The visible and infrared spectroelectrochemistry of the redox chemistry of CoII–porphinone complexes were examined and compared with similar studies of the respective iron complexes.
Ryan, Michael D., Tutunea, Florentina
core   +2 more sources

An electrochemical investigation of the formation of CoSx and its effect on the anodic dissolution of iron in ammoniacal-carbonate solutions [PDF]

open access: yes, 2013
It has been found that the co-presence of cobalt (II) and thiosulphate ions in ammoniacal-carbonate solutions promotes the passivation of iron, under conditions in which it would otherwise continue to dissolve anodically. Electrochemical experiments have
D'Aloya, A, Nikoloski, A.N.
core   +2 more sources

Synthesis and Characterization of Complex Compounds from Cadmium(II) Chloride and Cobalt(II) Chloride with N,N'-Diethylthiourea [PDF]

open access: yesJournal of Pure and Applied Chemistry Research, 2022
The synthesis of ionic complexes of cadmium(II) chloride and cobalt(II) chloride with N,N'-diethylthiourea (detu) ligands has not been previously reported.
Reza Mega Wahyuni   +4 more
doaj  

Heteropolytungstates Containing Cobalt(II) or Cobalt(III) [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1976
Abstract The reactions of tungstophosphate with cobalt ion and the properties of heteropolytungstates containing cobalt have been investigated. Unsaturated heteropolyanion PW11O397− produced by the partial degradation of the parent 12-tungstophosphoric acid reacts with cobalt ion to give 11-tungstocobaltophosphate PCoW11O40H25 ...
Akitoshi Komura   +2 more
openaire   +1 more source

Anodic Oxidation and Amperometric Sensing of Hydrazine at a Glassy Carbon Electrode Modified with Cobalt (II) Phthalocyanine–cobalt (II) Tetraphenylporphyrin (CoPc- (CoTPP)4) Supramolecular Complex

open access: yesSensors, 2006
This paper describes the electrocatalytic behaviour of a glassy carbon electrode (GCE)modified with cobalt(II)phthalocyanine (CoPc) complex peripherally tetrasubstituted withcobalt(II)tetraphenylporphyrin (CoTPP) complexes via ether linkages (i.e., CoPc-(
Kenneth I. Ozoemena
doaj   +1 more source

Complexes of cobalt (II, III) with derivatives of dithiocarbamic acid – effectors of peptidases of Bacillus thuringiensis and α-L-Rhamnozidase of Eupenicillium erubescens and Cryptococcus albidus [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2014
The influence of cobalt (II, III) coordinative compounds with derivatives of dithiocarbamic acid on Bacillus thuringiensis IMV B-7324 peptidases with elastase and fibrinolytic activi­ty and Eupenicillium erubescens and Cryptococcus albidus α-L ...
L. D. Varbanets   +5 more
doaj   +1 more source

Scientific Opinion on safety and efficacy of cobalt carbonate as feed additive for ruminants, horses and rabbits

open access: yesEFSA Journal, 2012
Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)
doaj   +1 more source

Home - About - Disclaimer - Privacy