1700589: Mechanistic aspects of ligand substitution on the cis-diaqua-chloro-tris(dimethyl sulfoxide)ruthenium(II) complex by some sulfur-containing bioactive ligands in aqueous medium-ESI

2018 ◽  
Keyword(s):  
Dimethyl Sulfoxide ◽  
Aqueous Medium ◽  
Ligand Substitution ◽  
Bioactive Ligands ◽  
Sulfur Containing

scholarly journals Mechanistic Aspects of Ligand Substitution on the Cis-Diaqua-Chloro-Tris(Dimethyl Sulfoxide)Ruthenium(II) Complex by Some Sulfur-Containing Bioactive Ligands in Aqueous Medium

2018 ◽  
Vol 43 (3-4) ◽  
pp. 274-285
Author(s):  
Animesh Chattopadhyay ◽  
Anwesha Dey ◽  
Parnajyoti Karmakar ◽  
Sumon Ray ◽  
Debabrata Nandi ◽  
...  
Keyword(s):  
Water Molecule ◽  
Dimethyl Sulfoxide ◽  
Aqueous Medium ◽  
Activation Parameters ◽  
Outer Sphere ◽  
Ring Closure ◽  
Bioactive Ligands ◽  
Experimental Findings ◽  
Job's Method ◽  
Sulfur Containing

The synthesis and interactions of the cis-diaqua-chloro-tris(dimethyl sulfoxide)ruthenium(II) complex with selected sulfur-containing ligands such as 2-thiouracil, glutathione and L-cysteine have been studied by UV-Vis spectrophotometry in aqueous medium at pH 4.5. From experimental data it is clear that all three reactions proceed via two steps: the first one being a rate-limiting ligand-dependent replacement of one water molecule, followed by a ligand-independent ring closure step with the expulsion of the second water molecule. The substituted products have been characterised by Job's method, FTIR spectroscopy and electrospray ionisation mass spectrometry. Activation parameters (Δ H≠ and Δ S≠) and thermodynamic parameters (Δ H0 and Δ S0, from the temperature dependence of the outer-sphere association equilibrium constant) are presented. Consistent with the experimental findings, an associative interchange mechanism is proposed.

Mechanistic Aspects of Ligand Substitution on the Hydroxopentaaquarhodium(III) Ion in Aqueous Solution by Sulfur-Containing Bioactive Ligands

2014 ◽  
Vol 46 (10) ◽  
pp. 587-596 ◽  
Author(s):  
SUBALA MONDAL ◽  
SUMON RAY ◽  
ANIMESH CHATTOPADHYAY ◽  
DEBABRATA NANDI ◽  
ROSHNI SARKAR SAIN ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ligand Substitution ◽  
Bioactive Ligands ◽  
Sulfur Containing

ChemInform Abstract: Acidities of Hydrocarbons and Sulfur-Containing Hydrocarbons in Dimethyl Sulfoxide Solution.

ChemInform ◽  
1987 ◽  
Vol 18 (13) ◽  
Author(s):  
F. G. BORDWELL ◽  
G. E. DRUCKER ◽  
N. H. ANDERSEN ◽  
A. D. DENNISTON
Keyword(s):  
Dimethyl Sulfoxide ◽  
Dimethyl Sulfoxide Solution ◽  
Sulfur Containing
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