Condensation Reactions of Cobalt Amino Acid Complexes with Formaldehyde:  Preparation and Crystal Structures of Cobalt Complexes Containing New Hexadentate, Pendant-Arm Macrocyclic and Acyclic Ligands

1997 ◽  
Vol 36 (24) ◽  
pp. 5470-5477 ◽  
Author(s):  
Penelope J. Brothers ◽  
George R. Clark ◽  
Helen R. Palmer ◽  
David C. Ware
Keyword(s):  
Amino Acid ◽  
Crystal Structures ◽  
Cobalt Complexes ◽  
Amino Acid Complexes ◽  
Condensation Reactions ◽  
Pendant Arm ◽  
Acyclic Ligands

scholarly journals Evaluation the Effects of some Cobalt Amino Acids Complexes Using Leukocytes as in vitro Model for Cytotoxicity

1970 ◽  
Vol 66 (2) ◽  
Author(s):  
Andreea STĂNILĂ ◽  
Cornelia BRAICU
Keyword(s):  
Amino Acids ◽  
Lipid Peroxidation ◽  
Amino Acid ◽  
Whole Blood ◽  
In Vitro Model ◽  
Cobalt Complexes ◽  
Prooxidant Effect ◽  
Amino Acid Complexes ◽  
Vitro Model

It was evaluate the effect of amino acids complex we had used viable leukocytes readily obtained from sterile whole blood as an in vitro model for cytotoxicity. The end point for cytotoxicity evaluation was lactate dehidrogenase activity (LDH) and lipid peroxidation (MDA-TBA test). We tested 5 amino acid complexes: Co-leucine, Co-methionine, Co-valine, Co-hystidine, Co-phenylalanine at different concentrations. Some of the amino acids complexes determined the decreasing of LDH level after 8h, 24h and 48h which mean that these compounds have no cytotoxicity. Concerning the lipid peroxidation the lowest level were obtained for cobalt complexes with metionine, valine, leucine and hystidine at the concentrations of 2-0,2µM and for cobalt phenylalanine complexes for all concentrations especially after 24h and 48h. The higher levels of of lipid peroxidation were in the case of Copper-valine at 2µM and 20µM after 24h, Copper-hystidine at 20µM after 8h, 24h, 48h, and Co-leucine at 20µM after 48h, having a prooxidant effect.

Potentiometric study of enantioselective effects in α-amino acid complexes of copper(II)

1985 ◽  
Vol 104 (1) ◽  
pp. 63-67 ◽  
Author(s):  
I.L. Ulanovski ◽  
A.A. Kurganov ◽  
V.A. Davankov
Keyword(s):  
Amino Acid ◽  
Potentiometric Study ◽  
Amino Acid Complexes

scholarly journals Synthesis, Characterization, and Non-Covalent Interactions of Palladium(II)-Amino Acid Complexes

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4331
Author(s):  
David B. Hobart ◽  
Michael A. G. Berg ◽  
Hannah M. Rogers ◽  
Joseph S. Merola
Keyword(s):  
Amino Acid ◽  
High Resolution Mass Spectrometry ◽  
Resonance Spectroscopy ◽  
Spectroscopic Techniques ◽  
X Ray Diffraction ◽  
Amino Acid Complexes ◽  
Acetone Water ◽  
Square Planar ◽  
Non Covalent Interactions ◽  
Covalent Interactions

The reaction of palladium(II) acetate with acyclic amino acids in acetone/water yields square planar bis-chelated palladium amino acid complexes that exhibit interesting non-covalent interactions. In all cases, complexes were examined by multiple spectroscopic techniques, especially HRMS (high resolution mass spectrometry), IR (infrared spectroscopy), and 1H NMR (nuclear magnetic resonance) spectroscopy. In some cases, suitable crystals for single crystal X-ray diffraction were able to be grown and the molecular structure was obtained. The molecular geometries of the products are discussed. Except for the alanine complex, all complexes incorporate water molecules into the extended lattice and exhibit N-H···O and/or O···(HOH)···O hydrogen bonding interactions. The non-covalent interactions are discussed in terms of the extended lattice structures exhibited by the structures.

Ternary chromium(III)-nucleotide-amino acid complexes III. L-Glutamic acid derivatives

1989 ◽  
Vol 165 (1) ◽  
pp. 131-137 ◽  
Author(s):  
M. Vicens ◽  
J.J. Fiol ◽  
A. Terron ◽  
V. Moreno
Keyword(s):  
Amino Acid ◽  
Glutamic Acid ◽  
Amino Acid Complexes ◽  
Glutamic Acid Derivatives

Equilibrium constants of metal amino acid complexes

Polyhedron ◽  
1990 ◽  
Vol 9 (5) ◽  
pp. 665-668 ◽  
Author(s):  
F. Rey ◽  
J.M. Antelo ◽  
F. Arce ◽  
F.J. Penedo
Keyword(s):  
Amino Acid ◽  
Equilibrium Constants ◽  
Amino Acid Complexes
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