A novel isotachophoresis of cobalt and copper complexes by metal ion substitution reaction in a continuous moving chelation boundary

The Analyst ◽  
2010 ◽  
Vol 135 (1) ◽  
pp. 140-148 ◽  
Author(s):  
Wei Zhang ◽  
Jian-Feng Chen ◽  
Liu-Yin Fan ◽  
Cheng-Xi Cao ◽  
Ji-Cun Ren ◽  
...  
Keyword(s):  
Substitution Reaction ◽  
Metal Ion ◽  
Copper Complexes ◽  
Ion Substitution

Half-rotation in a kinetically locked [2]catenane induced by transition metal ion substitution

2012 ◽  
Vol 48 (47) ◽  
pp. 5826 ◽  
Author(s):  
David A. Leigh ◽  
Paul J. Lusby ◽  
Alexandra M. Z. Slawin ◽  
D. Barney Walker
Keyword(s):  
Transition Metal ◽  
Metal Ion ◽  
Transition Metal Ion ◽  
Ion Substitution

Metal ion substitution chemistry in the yttrium barium copper oxide system as a probe of the superexchange pathway

1988 ◽  
Vol 110 (20) ◽  
pp. 6716-6720 ◽  
Author(s):  
Ruth. Jones ◽  
Peter P. Edwards ◽  
Martin R. Harrison ◽  
Thitinant. Thanyasiri ◽  
Ekkehard. Sinn
Keyword(s):  
Yttrium Barium Copper Oxide ◽  
Copper Oxide ◽  
Metal Ion ◽  
Barium Copper Oxide ◽  
Oxide System ◽  
Barium Copper ◽  
Substitution Chemistry ◽  
Ion Substitution ◽  
Yttrium Barium

5-Coordinate Compounds of Nickel(II) and Copper(II) With the Triamine Diimine Ligands 13-imino-4,4,6,11,11-pentamethyl-3,7,10-Triazatetradec-6-en-1-amine and 4,6,11-Triethyl-13-imino-4,11-dimethyl-3,7,10-triazapentadec-6-en-1-amine

1988 ◽  
Vol 41 (6) ◽  
pp. 957 ◽  
Author(s):  
NF Curtis
Keyword(s):  
Ground State ◽  
Metal Ion ◽  
Colour Change ◽  
Singlet Ground State ◽  
Diimine Ligands ◽  
Protonation Reaction ◽  
Square Planar ◽  
Ion Substitution ◽  
Secondary Amino ◽  
Coloured Complex

Reaction of nickel(II) with 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene diperchlorate in the presence of ammonia yields a lilac- coloured complex of nickel(II) with 13-imino-4,4,6,11,11-pentamethyl-3,7,10-triazatetradec-6-en-1-amine, a pentadentate ligand with one primary and two secondary amino, plus one primary and one secondary imino , donor groups. The copper(II) complex of the ligand was formed from the nickel(II) compound by metal-ion substitution. The cations have d-d spectra indicative of five-coordination. The complex cations undergo a reversible protonation reaction with a change from five-coordinate to square planar, with a colour change for nickel(II) from lilac (triplet ground state) to yellow (singlet ground state), and for copper(II) from blue to violet. The compounds of the homologous ligand 4,6,11-triethyl-13-imino-4,11- dimethyl-3,7,10-triazapentadec-6-en-1-amine were similarly prepared, and have similar properties.

scholarly journals Synthesis, Spectroscopic, and Antimicrobial Studies on Bivalent Nickel and Copper Complexes of Bis(thiosemicrbazone)

2007 ◽  
Vol 2007 ◽  
pp. 1-7 ◽  
Author(s):  
Sulekh Chandra ◽  
Smriti Raizada ◽  
Monika Tyagi ◽  
Archana Gautam
Keyword(s):  
Metal Complexes ◽  
Metal Ion ◽  
Copper Complexes ◽  
Free Ligand ◽  
Antimicrobial Properties ◽  
Molar Conductance ◽  
Spectral Studies ◽  
Central Metal ◽  
Antimicrobial Studies

A series of metal complexes of Cu(II) and Ni(II) having the general composition[M(L)X2]with benzil bis(thiosemicarbazone) has been prepared and characterized by element chemical analysis, molar conductance, magnetic susceptibility measurements, and spectral (electronic, IR, EPR, mass) studies. The IR spectral data suggest the involvement of sulphur and azomethane nitrogen in coordination to the central metal ion. On the basis of spectral studies, an octahedral geometry has been assigned for Ni(II) complexes but a tetragonal geometry for Cu(II) complexes. The free ligand and its metal complexes have been tested in vitro against a number of microorganisms in order to assess their antimicrobial properties.

Selective Catalytic Reduction of NOx: Mechanistic Perspectives on the Role of Base Metal and Noble Metal Ion Substitution

2008 ◽  
Vol 47 (23) ◽  
pp. 9240-9247 ◽  
Author(s):  
Sounak Roy ◽  
A. Marimuthu ◽  
Parag A. Deshpande ◽  
M. S. Hegde ◽  
Giridhar Madras
Keyword(s):  
Selective Catalytic Reduction ◽  
Base Metal ◽  
Noble Metal ◽  
Metal Ion ◽  
Catalytic Reduction ◽  
Ion Substitution ◽  
Reduction Of Nox

scholarly journals Synthesis, Spectral Characterization and Evaluation of Pharmacodynamic Activity of Copper and Nickel Complexes of Ethambutol Dihydrochloride

2006 ◽  
Vol 3 (4) ◽  
pp. 274-277 ◽  
Author(s):  
M. Mathrusri Annapurna ◽  
M. E. Bhanoji Rao ◽  
B. V. V. Ravi Kumar
Keyword(s):  
Metal Ion ◽  
Copper Complexes ◽  
Nickel Complexes ◽  
Octahedral Geometry ◽  
Spectral Characterization ◽  
Alamar Blue Assay ◽  
Alamar Blue ◽  
Thermal Data ◽  
Lowenstein Jensen ◽  
Assay Methods

Nickel and copper complexes of ethambutol [EB] were synthesized and characterized. On the basis of spectral and thermal data an octahedral geometry was assigned to the complexes with molecular formulae [Cu(C10H24N2O2)2Cl2] 5H2O and [Ni(C10H24N2O2)2Cl2] 2H2O. Coordination of ethylene diamine derivative to the metal ion was proposed. The anti-tubercular activity of the complexes was evaluated using Lowenstein–Jensen medium and MABA [Microplate Alamar Blue Assay] methods.

Metal Ion Substitution in the Catalytic Site Greatly Affects the Binding of Sulfhydryl-Containing Compounds to Leucyl Aminopeptidase†,‡

Biochemistry ◽  
2006 ◽  
Vol 45 (10) ◽  
pp. 3226-3234 ◽  
Author(s):  
Mario Cappiello ◽  
Vincenzo Alterio ◽  
Pietro Amodeo ◽  
Antonella Del Corso ◽  
Andrea Scaloni ◽  
...  
Keyword(s):  
Metal Ion ◽  
Catalytic Site ◽  
Ion Substitution ◽  
Leucyl Aminopeptidase
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