A macrocyclic ligand able to bind gallium(iii) by preorganized pendant arms; coordination and kinetic studies

2005 ◽  
pp. 485 ◽  
Author(s):  
Gianluca Ambrosi ◽  
Alessia Boggioni ◽  
Mauro Formica ◽  
Vieri Fusi ◽  
Luca Giorgi ◽  
...  
Keyword(s):  
Macrocyclic Ligand ◽  
Kinetic Studies ◽  
Pendant Arms

Optimization of the selectivity and rate of copper radioisotope complexation: formation and dissociation kinetic studies of 1,4,8-trimethylcyclam-based ligands with different coordinating pendant arms

2018 ◽  
Vol 42 (14) ◽  
pp. 11908-11929 ◽  
Author(s):  
Monika Paúrová ◽  
Tomáš David ◽  
Ivana Císařová ◽  
Přemysl Lubal ◽  
Petr Hermann ◽  
...  
Keyword(s):  
Kinetic Studies ◽  
Pendant Arm ◽  
Dissociation Kinetic ◽  
Pendant Arms

Influence of coordinating pendant arm character on selectivity and rate of copper(ii) complexation was investigated to optimize ligands for radiomedicinal use.

Studies on tetranuclear copper (II) complexes of a macrocyclic ligand bearing 2-thiophenoethylamine pendant arms

2010 ◽  
Vol 983 (1-3) ◽  
pp. 186-193 ◽  
Author(s):  
Qimao Huang ◽  
Dan Hu ◽  
You Song ◽  
Zhiquan Pan ◽  
Hong Zhou ◽  
...  
Keyword(s):  
Macrocyclic Ligand ◽  
Pendant Arms

Synthesis of dinuclear metal complexes of a macrocyclic ligand with multi-ligating pendant-arms. Crystal structures of its manganese(II) and cadmium(II) complexes

2000 ◽  
Vol 305 (1) ◽  
pp. 83-90 ◽  
Author(s):  
Ming Qian ◽  
Shaohua Gou ◽  
Suchada Chantrapromma ◽  
S.Shanmunga Sundara Raj ◽  
Hoong-Kun Fun ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Crystal Structures ◽  
Macrocyclic Ligand ◽  
Dinuclear Metal Complexes ◽  
Pendant Arms

scholarly journals Structural, magnetic, redox and theoretical characterization of seven-coordinate first-row transition metal complexes with a macrocyclic ligand containing two benzimidazolyl N-pendant arms

2020 ◽  
Vol 49 (14) ◽  
pp. 4425-4440 ◽  
Author(s):  
Bohuslav Drahoš ◽  
Ivana Císařová ◽  
Oleksii Laguta ◽  
Vinicius T. Santana ◽  
Petr Neugebauer ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Theoretical Calculations ◽  
Macrocyclic Ligand ◽  
Redox Properties ◽  
Theoretical Characterization ◽  
Pendant Arms

Structural, magnetic and redox properties of pentagonal bipyramidal late-first-row transition metal complexes of a benzimidazole-based macrocyclic ligand were thoroughly investigated with help of theoretical calculations.

A new family of NxOy pyridine-containing macrocycles: Synthesis and characterization of their Y(III), Ln(III), Zn(II), and Cd(II) coordination compounds

2004 ◽  
Vol 82 (3) ◽  
pp. 437-447 ◽  
Author(s):  
Carlos Lodeiro ◽  
Rufina Bastida ◽  
Emilia Bértolo ◽  
Adolfo Rodríguez
Keyword(s):  
Schiff Base ◽  
Macrocyclic Ligand ◽  
Macrocyclic Ligands ◽  
New Family ◽  
Pendant Arm ◽  
Starting Point ◽  
Wide Range ◽  
Imine Bond ◽  
Pendant Arms

Reaction between 2,6-bis(2-formylphenoxymethyl)pyridine and N,N-bis(3-aminopropyl)methylamine or tris(2-aminoethyl)amine has been used as the starting point for the synthesis of seven oxa-aza macrocyclic ligands, five of them never reported previously. They all feature different pendant arms, which provide a wide range of coordination possibilities. The Schiff base macrocycles L1 and L4 and their reduced ligands L2 and L5 are derived from 2,6-bis(2-formylphenoxymethyl)pyridine and tris(2-aminoethyl)amine or N,N-bis(3-aminopropyl)methylamine, respectively. The reaction of L1 with salicylaldehyde forms L3, which features an imine bond in the pendant arm. The ligand L5 has been the precursor for the pendant-armed L6 and L7, by alkylation of the free NH groups with methyl-imidazole or methyl-indole. By a template or a nontemplate approach, we have synthesized different mono- and dinuclear complexes with Y(III), Ln(III), Zn(II), and Cd(II) cations. Both the free macrocyclic ligands and their corresponding metal complexes have been characterized by microanalysis, IR, UV–vis, 1H and 13C NMR spectroscopy, FAB mass spectrometry, MS electrospray, and conductivity measurements.Key words: Schiff-base macrocycle, template synthesis, macrocyclic ligand complexes, lanthanide(III) complexes.

scholarly journals KINETICS OF OXIDATION WITH HYDROGEN PEROXIDE AND IRON(II) COMPLEX WITH A MACROCYCLIC BINUCLEATING LIGAND

1995 ◽  
Vol 3 (3) ◽  
pp. 55-62
Author(s):  
Lourdes T. Kist ◽  
Bruno Szpoganicz ◽  
Manuel G. Basallote ◽  
Maria J. F. Trujillo ◽  
Maria A. Mariez
Keyword(s):  
Hydrogen Peroxide ◽  
Macrocyclic Ligand ◽  
Kinetic Studies ◽  
Organic Substrates ◽  
Kinetics Of Oxidation ◽  
Oxidation Processes ◽  
First Order ◽  
First Order Kinetics ◽  
Kinetics Of ◽  
Catalyzed Oxidation

In the present study solutions of a complex of Fe(II) with a macrocyclic ligand were prepared and their oxidation kinetics with hydrogen peroxide examined. The kinetic studies of the oxidation processes lead to values of rate constant of two-step which occur via first-order kinetics. The results are expected to result in a better knowledge of the mechanism of H202 activation in catalyzed oxidation of organic substrates.

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