Thermal properties of some pyrimidine, purine, amino-acid and mixed ligand complexes

2013 ◽  
Vol 551 ◽  
pp. 164-174 ◽  
Author(s):  
Mamdouh S. Masoud ◽  
Ahmed M. Ramadan ◽  
Ghada M. El-Ashry
Keyword(s):  
Thermal Properties ◽  
Amino Acid ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes

scholarly journals Synthesis and spectral characterizations of vanadyl(ii) and chromium(iii) mixed ligand complexes containing metformin drug and glycine amino acid

2021 ◽  
Vol 19 (1) ◽  
pp. 735-744
Author(s):  
Samar O. Aljazzar
Keyword(s):  
Amino Acid ◽  
Type Ii Diabetes ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Spectroscopic Techniques ◽  
Nanoscale Structures ◽  
Pyramidal Geometry ◽  
Effective Drugs ◽  
Square Pyramidal Geometry ◽  
Spectral Characterizations

Abstract Metformin is one of the most effective drugs for the treatment of type II diabetes. Two new mixed ligand complexes of vanadyl(ii) and chromium(iii) ions with the general formula [VOL1L2]SO4 and [CrL1L2(Cl)2]Cl, respectively, where L1 is the metformin and L2 is the glycine amino acid, have been synthesized in MeOH solvent with 1:1:1 stoichiometry and characterized by several spectroscopic techniques. The spectroscopic data suggested that the [VOL1L2]SO4 complex possesses a square pyramidal geometry, where the [CrL1L2(Cl)2]Cl complex possesses an octahedral geometry. The L1 ligand coordinated to the VO(ii) and Cr(iii) ions via the N atoms of the imino (‒C═NH) groups, where the L2 ligand coordinated via the O atom of the carboxylate group (COO) and the N atom of the amino group (NH2). The interaction of ligands L1 and L2 with the metal ions leads to complexes that have organized nanoscale structures with a main diameter of ∼14 nm for the [CrL1L2(Cl)2]Cl complex and ∼40 nm for the [VOL1L2]SO4 complex.

Mixed-ligand complexes of zinc(II) and cadmium(II) diethyldithiocarbamates with 2,2?-bipyridyl and 4,4?-bipyridyl: Synthesis, structure, and thermal properties

1994 ◽  
Vol 34 (5) ◽  
pp. 794-802 ◽  
Author(s):  
S. M. Zemskova ◽  
L. A. Glinskaya ◽  
V. B. Durasov ◽  
R. F. Klevtsova ◽  
S. V. Larionov
Keyword(s):  
Thermal Properties ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes
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