Mechanistic aspects of ligand substitution on c/s-diaqua-chloro-tris-(dimethyl sulfoxide)-ruthenium(ll) complex by some amino acids in aqueous medium Journal of the Indian Chemical Society, 2015
Mechanistic aspects of ligand substitution on cis-diaqua-chloro- tris(dimethyl sulfoxide) ruthenium(II) complex by adenosine and cytidine in aqueous medium Arup Mandal, Parnajyoti Karmakar, Biplab K. Bera, Sumon Ray, Subala Mondal, et al. Progress in Reaction Kinetics and Mechanism, 2014 The interaction of the cis-diaqua-chloro-tris(dimethyl sulfoxide)ruthenium(II) complex with selected nucleosides such as adenosine (L1H) and cytidine (L2H) has been studied spectrophotometrically in aqueous medium as a function of [substrate complex], [ligand] and temperature. The reaction has been monitored at 295 nm where the difference in spectra between the reactant and product is a maximum. At pH 5.0, the interaction with the two nucleosides shows two distinct consecutive steps, i.e., it shows a non-linear dependence on the concentration of the nucleosides: both steps are [ligand] dependent. The rate constants for the processes are: k1∼ 10–3s–1and k2∼ 10–5s–1. The activation parameters were calculated from Eyring plots. Based on the kinetic and activation parameters, an associative interchange mechanism is proposed for the interaction processes. From the temperature dependence of the outer sphere association equilibrium constant, the thermodynamic parameters were also calculated, which gives a negative Δ G° value for both the steps at all temperatures studied, supporting the spontaneous formation of an outer sphere association complex. The product of the reaction has been characterised by IR and ESI-mass spectroscopic analysis.
Mechanistic and kinetic investigations on the interaction of model platinum(II) complex with ligands of biological significance in reference to the antitumor activity Parnajyoti Karmakar, Sumon Ray, Arup Mandal, Subala Mondal, Subhasis Mallick, et al. Synthesis and Reactivity in Inorganic Metal Organic and Nano Metal Chemistry, 2013 The kinetics of interaction of cis-[Pt(cis-dach)(H2O)2]2+ (where dach is cis-1,2-diaminocyclohexane) with three different amino acids, namely L-Asparagine (L1H), L-Arginine (L2H), and L-Gluatmic acid (L3H) have been studied spectrophotometrically in the 40–60°C temperature range. The substitution was found to occur in two subsequent reaction steps: the first step is the ligand-assisted anation and the second one is the chelation step. The kinetic study has been substantiated by product isolation, IR, NMR, and ESI-MS spectroscopic analysis.
Kinetic and mechanistic studies on the interaction of glycyl-L-alanine, glycyl-L-asparagine, and glycyl-L-tyrosine with hydroxopentaaquarhodium(III) ion Biplab K. Bera, Sumon Ray, Subala Mondal, Parnajyoti Karmakar, Arup Mandal, et al. Journal of Chemistry, 2013 The kinetics of the interaction of three glycine-containing dipeptides, namely, glycyl-L-alanine (L1-L′H), glycyl-L-asparagine (L2-L′H), and glycyl-L-tyrosine (L3-L′H) with has been studied spectrophotometrically in aqueous medium as a function of the molar concentration of , [dipeptide], pH, and temperature at constant ionic strength. Reactions were studied at pH 4.3, where the substrate complex exists predominantly as the hydroxopentaaqua species and dipeptides as the zwitterion. The reaction has been found to proceed via two parallel paths: both processes are ligand dependent. The rate constant for the processes are and . The activation parameters for both the steps were evaluated using Eyring’s equation. The low and large negative value of as well as and indicate an associative mode of activation for both the aqua ligand substitution processes for both the parallel paths. The product of the reaction has been characterized by IR and ESI-mass spectroscopic analyses.
Kinetics and mechanism of the interaction of bio-active ligands with cis-diaquabis(bipyridyl)ruthenium(II) in aqueous medium Journal of the Indian Chemical Society, 2013
Kinetics and mechanism of the ligand substitution reaction of [(H 2O)(tap)2RuORu(tap)2(H2O)] 2+ {tap = 2-(m-tolylazo)pyridine} with diethyldithiocarbamate anion in aqueous solution at pH 7.4 Journal of the Indian Chemical Society, 2013
Kinetic and mechanistic study of the interaction of diethyldithiocarbamate anion with diaquaethylenediamineplatinum(II) ion in aqueous medium Subhasis Mallick, Arup Mandal, Biplab K. Bera, Pamajyoti Karmakar, Subala Mondal, et al. Progress in Reaction Kinetics and Mechanism, 2012 The interaction of diethyldithiocarbamate (Et2DTC) with diaquaethylenediamineplatinum(II) has been studied spectrophotometrically in aqueous medium as a function of [substrate complex], [ligand], temperature and pH at constant ionic strength. The reaction proceeds via rapid outer-sphere association complex formation followed by two consecutive steps: the first is ligand dependent and second is assigned to intramolecular ring closure. The low enthalpy and negative entropy of activation indicate an associative mode of activation for both steps.
Kinetic and mechanistic studies on the interaction of DL-penicillamine with di-μ-hydroxobis(bipyridyl)dipalladium(II) ion in aqueous solution Journal of the Indian Chemical Society, 2011
Alternative of cisplatin-Introduction of rhodium analogues A Mandal Journal of the Indian Chemical Society 101 (11), 101389 , 2024 2024 Citations: 5
PROTECTIVE EFFECT OF CURCUMA LONGA (TURMERIC) AND ITS ACTIVE INGREDIENT CURCUMIN AGAINST COVID-19: A MINI REVIEW A Mandal, S Hazra Journal of Advanced Scientific Research 11 (Suppl 6), 17-20 , 2020 2020
BOOSTING THE IMMUNITY POWER BY TAKING VIT-C MAY BE A BETTER WAY THAN LOCKDOWN AGAINST SARS-COV-2-A MINI REVIEW A Mandal Journal of Advanced Scientific Research 11 (Suppl 3), 64-66 , 2020 2020
Replacement of Pt-based anticancer drugs by Ru-analogues-a mini-review A Mandal International Journal of Research in Engineering and Science (IJRES) 8 (12 … , 2020 2020 Citations: 2
Mechanistic aspects of ligand substitution on cis-diaqua-chloro-tris-(dimethyl sulfoxide)-ruthenium (II) complex by some amino acids in aqueous medium A Mandal, A Chattopadhyay, D Nandi, S Ray, AK Ghosh 2015 Citations: 2
The Reactivity of vic -dioximes Towards the [(H 2 O)(tap) 2 RuORu(tap) 2 (H 2 O)] 2+ Ion {tap = 2-( m -tolylazo)pyridine} at Physiological pH A Mandal, S Ray, A Chattopadhyay, P Karmakar, D Nandi, AK Ghosh Journal of Solution Chemistry 43 (5), 870-884 , 2014 2014
Mechanistic aspects of ligand substitution on cis-diaqua-chloro-tris-(dimethyl sulfoxide)-ruthenium(II) complex by adenosine and cytidine in aqueous medium SMAKG Arup Mandal, Parnajyoti Karmakar, Biplab K. Bera, Sumon Ray Prog. React. Kinet. Mec 39, 74-88 , 2014 2014 Citations: 1
Mechanistic and Kinetic Investigations on the Interaction of Model Platinum (II) Complex With Ligands of Biological Significance in Reference to the Antitumor Activity P Karmakar, S Ray, A Mandal, S Mondal, S Mallick, BK Bera, AK Ghosh Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal … , 2013 2013 Citations: 11
Kinetics and mechanism of interaction of some bioactive ligands with cis -diaqua( cis -1,2-diaminocyclohexane)platinum(II) in aqueous medium P Karmakar, S Ray, S Mallick, BK Bera, A Mandal, S Mondal, AK Ghosh Journal of Chemical Sciences 125 (5), 1133-1143 , 2013 2013 Citations: 4
Kinetics and mechanism of the ligand substitution reaction of [(H2O)(tap)(2) RuORu (tap)(2)(H2O)](2+){tap= 2-(m-tolylazo) pyridine} with diethyldithiocarbamate anion in aqueous … S Mondal, D Nandi, A Mandai, BK Bera, P Karmakar, S Ray, S Mallick, ... JOURNAL OF THE INDIAN CHEMICAL SOCIETY 90 (7), 903-911 , 2013 2013
MECHANISTIC STUDIES ON SUBSTITUTION REACTIONS OF SOME SQUARE PLANAR PLATINUM (II) COMPLEXES P KARMAKAR 2013
Reactivity of hydroxopentaaquarhodium (III) ion towards glycine-containing dipeptides in aqueous medium BK Bera, A Mandal, P Karmakar, S Mallick, S Mondal, AK Ghosh JOURNAL OF THE INDIAN CHEMICAL SOCIETY 90 (4), 449-458 , 2013 2013
Kinetics and mechanism of the interaction of bio-active ligands with cis-diaqua-bis (bipyridyl) ruthenium (II) in aqueous medium S Mondal, A Mandal, P Karmakar, BK Bera, S Mallick, S Ray, AK Ghosh JOURNAL OF THE INDIAN CHEMICAL SOCIETY 90 (2), 153-162 , 2013 2013 Citations: 1
Kinetic studies on interaction of platinum (II) complexes with an ‘S’containing ligand in aqueous medium P Karmakar, S Ray, D Nandi, A Mandal, S Mondal, S Mallick, BK Bera, ... Journal of Solution Chemistry 42 (2), 441-458 , 2013 2013 Citations: 8
Kinetic and Mechanistic Studies on the Interaction of Glycyl‐L‐alanine, Glycyl‐L‐asparagine, and Glycyl‐L‐tyrosine with Hydroxopentaaquarhodium (III) Ion BK Bera, S Ray, S Mondal, P Karmakar, A Mandal, S Mallick, AK Ghosh Journal of Chemistry 2013 (1), 801362 , 2013 2013 Citations: 1
Displacement of aqua ligands from the hydroxopentaaquarhodium (III) ion by 1-hydroxybenzotriazole (HOBt): A kinetic and mechanistic approach BK Bera, A Mandal, B Maity, S Ray, P Karmakar, S Mondal, S Mallick, ... Journal of Chemical Sciences 124 (4), 791-799 , 2012 2012 Citations: 1
Kinetic Study of the Interaction of Three Glycine-Containing Dipeptides with Hydroxopentaaquarhodium (III) Ion in Aqueous Medium BK Bera, S Mondal, S Mallick, A Mandal, P Karmakar, AK Ghosh Journal of solution chemistry 41 (4), 741-753 , 2012 2012 Citations: 5
Kinetic and mechanistic study of the interaction of diethyldithiocarbamate anion with diaquaethylenediamineplatinum (II) ion in aqueous medium S Mallick, A Mandal, BK Bera, P Karmakar, S Mondal, AK Ghosh Progress in Reaction Kinetics and Mechanism 37 (1), 18-29 , 2012 2012
Kinetic studies on substitution of cis-diaqua-chloro-tris-(dimethylsulphoxide)-ruthenium(II) complex with some dipeptides in aqueous medium SRAKG Arup Mandal, Parnajyoti Karmakar, Subhasis Mallick, Biplab K Bera ... J. Chem. Sci. 124 (4), 801-807 , 2012 2012 Citations: 4
Mechanistic aspects of ligand substitution on [(H2O)(tap)2RuORu(tap)2(H2O)]2+ {tap=2-(m-tolylazo)pyridine} ion by three glycine-containing dipeptides in aqueous medium at … SMAKG Arup Mandal, Subala Mondal, Parnajyoti Karmakar, Biplab K. Bera J. Chem. Sci. 124 (3), 587-596 , 2012 2012
MOST CITED SCHOLAR PUBLICATIONS
Mechanistic aspects of ligand substitution on cis -diaqua( cis -1,2-diaminocyclohexane)platinum(II) by Glycine- l -Leucine P Karmakar, S Mallick, BK Bera, A Mandal, S Mondal, SK Mukhopadhyay, ... Transition Metal Chemistry 35 (8), 911-916 , 2010 2010 Citations: 12
Mechanistic and Kinetic Investigations on the Interaction of Model Platinum (II) Complex With Ligands of Biological Significance in Reference to the Antitumor Activity P Karmakar, S Ray, A Mandal, S Mondal, S Mallick, BK Bera, AK Ghosh Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal … , 2013 2013 Citations: 11
Kinetic studies on interaction of platinum (II) complexes with an ‘S’containing ligand in aqueous medium P Karmakar, S Ray, D Nandi, A Mandal, S Mondal, S Mallick, BK Bera, ... Journal of Solution Chemistry 42 (2), 441-458 , 2013 2013 Citations: 8
Kinetics and mechanism of the interaction of adenosine with cis ‐diaqua( cis ‐1,2‐diaminocyclohexane)platinum(II) perchlorate in aqueous medium P Karmakar, S Mallick, S Mondal, BK Bera, A Mandal, SK Mukhopadhyay, ... International Journal of Chemical Kinetics 43 (5), 219-229 , 2011 2011 Citations: 6
Kinetics and Mechanism of the Ligand Substitution Reaction of the Di- μ -hydroxobis(bipyridyl)dipalladium(II) Ion with some Bio-relevant Ligands S Mallick, BK Bera, P Karmakar, S Mondal, A Mandal, AK Ghosh Journal of solution chemistry 40 (3), 532-544 , 2011 2011 Citations: 6
Alternative of cisplatin-Introduction of rhodium analogues A Mandal Journal of the Indian Chemical Society 101 (11), 101389 , 2024 2024 Citations: 5
Kinetic Study of the Interaction of Three Glycine-Containing Dipeptides with Hydroxopentaaquarhodium (III) Ion in Aqueous Medium BK Bera, S Mondal, S Mallick, A Mandal, P Karmakar, AK Ghosh Journal of solution chemistry 41 (4), 741-753 , 2012 2012 Citations: 5
Kinetics and mechanism of interaction of some bioactive ligands with cis -diaqua( cis -1,2-diaminocyclohexane)platinum(II) in aqueous medium P Karmakar, S Ray, S Mallick, BK Bera, A Mandal, S Mondal, AK Ghosh Journal of Chemical Sciences 125 (5), 1133-1143 , 2013 2013 Citations: 4
Kinetic studies on substitution of cis-diaqua-chloro-tris-(dimethylsulphoxide)-ruthenium(II) complex with some dipeptides in aqueous medium SRAKG Arup Mandal, Parnajyoti Karmakar, Subhasis Mallick, Biplab K Bera ... J. Chem. Sci. 124 (4), 801-807 , 2012 2012 Citations: 4
Interaction of glycyl–glycine with hydroxopentaaquarhodium (III) ion in aqueous medium: kinetic and mechanistic studies BK Bera, S Mallick, A Mandal, S Mondal, P Karmakar, AK Ghosh Progress in Reaction Kinetics and Mechanism 36 (4), 371-384 , 2011 2011 Citations: 4
Kinetics and mechanism of the reaction of hydroxopentaaquarhodium(III) ion with l -Arginine in aqueous solution BK Bera, S Mallick, A Mandal, P Karmakar, AK Datta, AK Ghosh Transition Metal Chemistry 35 (5), 541-547 , 2010 2010 Citations: 3
Replacement of Pt-based anticancer drugs by Ru-analogues-a mini-review A Mandal International Journal of Research in Engineering and Science (IJRES) 8 (12 … , 2020 2020 Citations: 2
Mechanistic aspects of ligand substitution on cis-diaqua-chloro-tris-(dimethyl sulfoxide)-ruthenium (II) complex by some amino acids in aqueous medium A Mandal, A Chattopadhyay, D Nandi, S Ray, AK Ghosh 2015 Citations: 2
Kinetics and mechanism of the ligand substitution reaction of di- μ -hydroxobis(bipyridyl)dipalladium(II) ion with diethyldithiocarbamate anion in aqueous solution S Mallick, BK Bera, S Mondal, P Karmakar, A Mandal, AK Ghosh Journal of Chemical Sciences 123 (3), 311-318 , 2011 2011 Citations: 2
Mechanistic aspects of ligand substitution on cis-diaqua-chloro-tris-(dimethyl sulfoxide)-ruthenium(II) complex by adenosine and cytidine in aqueous medium SMAKG Arup Mandal, Parnajyoti Karmakar, Biplab K. Bera, Sumon Ray Prog. React. Kinet. Mec 39, 74-88 , 2014 2014 Citations: 1
Kinetics and mechanism of the interaction of bio-active ligands with cis-diaqua-bis (bipyridyl) ruthenium (II) in aqueous medium S Mondal, A Mandal, P Karmakar, BK Bera, S Mallick, S Ray, AK Ghosh JOURNAL OF THE INDIAN CHEMICAL SOCIETY 90 (2), 153-162 , 2013 2013 Citations: 1
Kinetic and Mechanistic Studies on the Interaction of Glycyl‐L‐alanine, Glycyl‐L‐asparagine, and Glycyl‐L‐tyrosine with Hydroxopentaaquarhodium (III) Ion BK Bera, S Ray, S Mondal, P Karmakar, A Mandal, S Mallick, AK Ghosh Journal of Chemistry 2013 (1), 801362 , 2013 2013 Citations: 1
Displacement of aqua ligands from the hydroxopentaaquarhodium (III) ion by 1-hydroxybenzotriazole (HOBt): A kinetic and mechanistic approach BK Bera, A Mandal, B Maity, S Ray, P Karmakar, S Mondal, S Mallick, ... Journal of Chemical Sciences 124 (4), 791-799 , 2012 2012 Citations: 1
Mechanistic aspects of ligand substitution on [(H2O)(tap)2RuORu(tap)2(H2O)]2+ ion{tap=2-(m-tolylazo)pyridine} by some amino acids in aqueous medium at physiological pH AKG Arup Mandal, Subala Mondal, Parnajyoti Karmakar, Subhasis Mallick ... Int. J. Chem. Kinet, 44 (9), 612-623 , 2012 2012 Citations: 1
Kinetics and mechanism of the interaction of Glycyl-L-Leucine with [(H2O)(tap)2RuORu(tap)2(H2O)]2+ ion at physiological pH A. Mandal, S. Mallick, P. Karmakar, B.K. Bera, S. Mondal and A.K. Ghosh Prog. React. Kinet. Mec 37 (1), 1-17 , 2012 2012 Citations: 1