Metal ion interaction with penicillins: Part VIII. Equilibrium study of mixed ligand complex formation of Co(II), Ni(II), Cu(II) and Zn(II) with ampicillin and some amino acids

1996 ◽  
Vol 108 (4) ◽  
Author(s):  
Gurunath Mukherjee ◽  
Tapas Ghosh
Keyword(s):  
Amino Acids ◽  
Complex Formation ◽  
Metal Ion ◽  
Mixed Ligand Complex ◽  
Mixed Ligand ◽  
Ligand Complex ◽  
Equilibrium Study

Thermodynamics of mixed-ligand complex formation of mercury (II) ethylenediaminetetraacetate with amino acids in solution

2012 ◽  
Vol 548 ◽  
pp. 38-44
Author(s):  
Dmitrii Pyreu ◽  
Eugenii Kozlovskii ◽  
Matvei Gruzdev ◽  
Roman Kumeev
Keyword(s):  
Amino Acids ◽  
Complex Formation ◽  
Mixed Ligand Complex ◽  
Mixed Ligand ◽  
Ligand Complex

Mixed-ligand complex formation equilibria of copper(II), salicylic acid and some amino acids

2016 ◽  
Vol 220 ◽  
pp. 238-242 ◽  
Author(s):  
Diana Rojas ◽  
Mary Lorena Araujo ◽  
José Daniel Martínez ◽  
Felipe Brito ◽  
Edgar del Carpio ◽  
...  
Keyword(s):  
Amino Acids ◽  
Salicylic Acid ◽  
Complex Formation ◽  
Mixed Ligand Complex ◽  
Mixed Ligand ◽  
Ligand Complex ◽  
Complex Formation Equilibria ◽  
Formation Equilibria

Thermodynamic study of mixed-ligand complex formation of copper(II) and nickel(II) nitrilotriacetates with amino acids in solution. I

Polyhedron ◽  
2013 ◽  
Vol 51 ◽  
pp. 10-17 ◽  
Author(s):  
Irina Kiseleva ◽  
Dmitrii Pyreu ◽  
Tatyana Krivonogikh ◽  
Maria Bazanova ◽  
Tatyana Hochenkova ◽  
...  
Keyword(s):  
Amino Acids ◽  
Complex Formation ◽  
Mixed Ligand Complex ◽  
Mixed Ligand ◽  
Thermodynamic Study ◽  
Ligand Complex

Potentiometric Studies on Stepwise Mixed Ligand Complex Formation

1970 ◽  
Vol 25 (1) ◽  
pp. 22-26 ◽  
Author(s):  
G. Sharma ◽  
J. P. Tandon
Keyword(s):  
Complex Formation ◽  
Metal Ion ◽  
Mixed Ligand Complex ◽  
Iminodiacetic Acid ◽  
Formation Constants ◽  
Ternary Complexes ◽  
Mixed Ligand ◽  
Molar Ratio ◽  
Ligand Complex ◽  
Secondary Ligand

Stepwise mixed ligand complex formation is observed in the systems containing metal ion, iminodiacetic acid (IMDA) as primary ligand and one of the diamines, such as ethylenediamine (en), 1,2-propanediamine (1,2-pn) and 1,3-propanediamine (1,3-pn) as secondary ligands. Potentionmetric titrations indicate the formation of ternary complexes having a 1:1:1 molar ratio of metal ion to iminodiacetic acid to the secondary ligand. Initially, metal-IMDA (1:1) complex is formed in the lower buffer region prior to the formation of the ternary complex and the addition of the secondary ligand takes place only after the combination with the primary ligand is complete. Formation constants (log KMAB) of the ternary complexes have been calculated and the probable reaction mechanism is suggested. The order of stability in terms of metal ion has been found to be Cu (II) > Ni (II) >Zn (II) >Cd (II) and in terms of secondary ligand as 1,2-pn>en>1,3-pn.

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