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Equilibrium Studies on Pd(II)-Amine Complexes with Bio-Relevant Ligands in Reference to Their Antitumor Activity. Int J Mol Sci 2023; 24:ijms24054843. [PMID: 36902279 PMCID: PMC10003265 DOI: 10.3390/ijms24054843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/05/2023] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
This review article presents an overview of the equilibrium studies on Pd-amine complexes with bio-relevant ligands in reference to their antitumor activity. Pd(II) complexes with amines of different functional groups, were synthesized and characterized in many studies. The complex formation equilibria of Pd(amine)2+ complexes with amino acids, peptides, dicarboxylic acids and DNA constituents, were extensively investigated. Such systems may be considered as one of the models for the possible reactions occurring with antitumor drugs in biological systems. The stability of the formed complexes depends on the structural parameters of the amines and the bio-relevant ligands. The evaluated speciation curves can help to provide a pictorial presentation of the reactions in solutions of different pH values. The stability data of complexes with sulfur donor ligands compared with those of DNA constituents, can reveal information regarding the deactivation caused by sulfur donors. The formation equilibria of binuclear complexes of Pd(II) with DNA constituents was investigated to support the biological significance of this class of complexes. Most of the Pd(amine)2+ complexes investigated were studied in a low dielectric constant medium, resembling that of a biological medium. Investigations of the thermodynamic parameters reveal that the formation of the Pd(amine)2+ complex species is exothermic.
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Das B, Gupta P. Luminescent terpyridine appended geminal bisazide and bistriazoles: multinuclear Pt(II) complexes and AIPE-based DNA detection with the naked eye. Dalton Trans 2021; 50:10225-10236. [PMID: 34236066 DOI: 10.1039/d1dt01108a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report square planar Pt(ii) complexes as luminescent biosensors for DNA detection in solution. The sensing is attributed to the aggregation induced bright red photoluminescence (AIPE) of the complexes in the presence of DNA that can be seen with the naked eye using only a 360 nm light source. Terpyridine appended luminescent geminal bistriazoles (L1-L4, from geminal bisazide A through azide-alkyne 'click' cycloaddition) with versatile chelating sites were explored for metal coordination and reaction with Pt(dmso)2Cl2 yielding tetranuclear and dinuclear complexes of Pt(ii) with different N∩N ligand environments. Thermally stable gem-bisazide and bistriazoles are hardly reported in the literature and this is the first report of terpyridine appended geminal bisazide and bistriazoles.
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Affiliation(s)
- Bishnu Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India.
| | - Parna Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India.
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Das B, Borah ST, Ganguli S, Gupta P. Phosphorescent Trinuclear Pt–Ir–Pt Complexes: Insights into the Photophysical and Electrochemical Properties and Interaction with Guanine Nucleobase. Chemistry 2020; 26:14987-14995. [PMID: 32846032 DOI: 10.1002/chem.202002941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/06/2020] [Indexed: 01/23/2023]
Affiliation(s)
- Bishnu Das
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur, West Bengal 741246 India
| | - Sakira Tabbasum Borah
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur, West Bengal 741246 India
| | - Sagar Ganguli
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur, West Bengal 741246 India
| | - Parna Gupta
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur, West Bengal 741246 India
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Petrović B, Jovanović S, Puchta R, van Eldik R. Mechanistic insight on the chemistry of potential Pt antitumor agents as revealed by collaborative research performed in Kragujevac and Erlangen. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mukherjee S, Reddy B. VP, Mitra I, Linert W, Moi SC. Hydrolysis mechanism of (N, N) chelated cytotoxic Pt/Pd(II)-dichloro complexes: A theoretical approach. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.04.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Topolski A, Rozmarynowska P, Maj M, Czajkowski R. Kinetics and mechanism of chloride substitution by thiourea, l-methionine, and glutathione in bimetallic [Pt2(6NNqui)Cl4] complex in water-DMF medium. Unusually slow reaction with thiourea. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Samanta A, Mitra I, Reddy B. VP, Mukherjee S, Mahata S, Linert W, Misini B, Bhattacharjee A, Dhabal S, Ghosh GK, Moi SC. Kinetics and mechanism of interaction of Pt(II) complex with bio-active ligands and in vitro Pt(II)-sulfur adduct formation in aqueous medium: bio-activity and computational study. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1283025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Avradeep Samanta
- Department of Chemistry, National Institute of Technology, Durgapur, India
| | - Ishani Mitra
- Department of Chemistry, National Institute of Technology, Durgapur, India
| | | | - Subhajit Mukherjee
- Department of Chemistry, National Institute of Technology, Durgapur, India
| | - Sujay Mahata
- Department of Chemistry, National Institute of Technology, Durgapur, India
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
| | - Bashkim Misini
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
| | | | - Sukhamoy Dhabal
- Department of Bio-Technology, National Institute of Technology, Durgapur, India
| | - Goutam Kr. Ghosh
- Department of Chemistry, National Institute of Technology, Durgapur, India
| | - Sankar Ch. Moi
- Department of Chemistry, National Institute of Technology, Durgapur, India
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Chen Z, Zhang S, Zhang J, Zhu Z. Enhanced anti-cancer efficacy to cancer cells by a novel monofunctional mononuclear platinum(ii) complex containing a mixed S,N,S-donor ligand. NEW J CHEM 2017. [DOI: 10.1039/c7nj01472d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel platinum–intercalator hybrid complex (1) exhibits a cytotoxicity comparable to that of cisplatin against MCF-7 cell lines, and more potent activities against HeLa and A-549 cell lines, especially against the former.
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Affiliation(s)
- Zhanfen Chen
- Flexible Display Mater. & Tech. Co-Innovation Center of Hubei
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education
- School of Chemistry and Environmental Engineering
- Jianghan University
- Wuhan 430056
| | - Shuping Zhang
- College of Chemistry & Chemical Engineering
- Hubei Normal University
- Huangshi 435002
- P. R. China
| | - Jian Zhang
- College of Chemistry & Chemical Engineering
- Hubei Normal University
- Huangshi 435002
- P. R. China
| | - Zhenzhu Zhu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210017
- P. R. China
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Kosović M, Jovanović S, Bogdanović GA, Giester G, Jaćimović Ž, Bugarčić ŽD, Petrović B. Kinetics and mechanism of the substitution reactions of some monofunctional Pt(II) complexes with heterocyclic nitrogen donor molecules. Crystal structure of [Pt(bpma)(pzBr)]Cl2·2H2O. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1224336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Milica Kosović
- Faculty of Metallurgy and Technology, University of Montenegro, Podgorica, Montenegro
| | | | - Goran A. Bogdanović
- Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Gerald Giester
- Faculty of Geosciences, Geography and Astronomy, University of Vienna, Wien, Austria
| | - Željko Jaćimović
- Faculty of Metallurgy and Technology, University of Montenegro, Podgorica, Montenegro
| | | | - Biljana Petrović
- Faculty of Science, University of Kragujevac, Kragujevac, Serbia
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Rilak A, Puchta R, Bugarčić ŽD. Mechanism of the reactions of ruthenium(II) polypyridyl complexes with thiourea, sulfur-containing amino acids and nitrogen-containing heterocycles. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.02.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Kinetic and mechanistic investigation into the influence of substituents on the substitution reactions of Pt(II) NCN-donor complexes. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9889-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Myszor D, Topolski A. Substitution of chlorides by l-methionine in the dinuclear [Pt2(8NNpy)Cl4] complex in DMF–water solution. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Dehdab M, Habibi-Khorassani S, Shahraki M. Kinetics and Mechanism Investigation of the Synthesized Highly Diasteroselective Substituted Tetrahydropyridines in the Presence of La(NO3)3.6H2O as a Catalyst. Catal Letters 2014. [DOI: 10.1007/s10562-014-1338-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Jarzynka P, Topolski A, Uzarska M, Czajkowski R. New dinuclear platinum complexes. Synthesis and kinetics of chloride substitution by thiourea and glutathione in water–DMF solution. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.12.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Mohamed MM, Weber I, Puchta R, Shoukry MM, van Eldik R. Amine-bridged binuclear palladium(II) complexes with inosine. Equilibrium studies and DFT calculations. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.840367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mahmoud M.A. Mohamed
- Faculty of Science, Department of Chemistry, Cairo University, Cairo, Egypt
- Faculty of Education, Department of Sciences and Mathematics, Asiut University, Asiut, Egypt
| | - Immo Weber
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ralph Puchta
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
- Department of Chemistry and Pharmacy, Computer Chemistry Center, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Mohamed M. Shoukry
- Faculty of Science, Department of Chemistry, Cairo University, Cairo, Egypt
- Faculty of Science, Department of Chemistry, Islamic University, Madinah, Kingdom of Saudi Arabia
| | - Rudi van Eldik
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Erlangen, Germany
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KARMAKAR P, RAY S, MALLICK S, BERA BK, MANDAL A, MONDAL S, GHOSH AK. Kinetics and mechanism of interaction of some bioactive ligands with cis-diaqua(cis-1,2-diaminocyclohexane)platinum(II) in aqueous medium. J CHEM SCI 2013. [DOI: 10.1007/s12039-013-0455-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Complex formation reactions of two sterically hindered platinum(II) complexes with some N-bonding ligands. TRANSIT METAL CHEM 2013. [DOI: 10.1007/s11243-013-9731-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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19
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Sgarbossa P, Sbovata SM, Bertani R, Mozzon M, Benetollo F, Marzano C, Gandin V, Michelin RA. Novel imino thioether complexes of platinum(II): synthesis, structural investigation, and biological activity. Inorg Chem 2013; 52:5729-41. [PMID: 23647564 DOI: 10.1021/ic3024452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The reactions of the nitrile complexes cis- and trans-[PtCl2(NCR)2] (R = Me, Et, CH2Ph, Ph) with an excess of ethanethiol, EtSH, in the presence of a catalytic amount of n-BuLi in tetrahydrofuran (THF), afforded in good yield the bis-imino thioether derivatives cis-[PtCl2{E-N(H)═C(SEt)R}2] (R = Me (1), Et (2), CH2Ph (3), Ph (4)) and trans-[PtCl2{E-N(H)═C(SEt)R}2] (R = Me (5), Et (6), CH2Ph (7), Ph (8)). The imino thioether ligands assumed the E configuration corresponding to a cis addition of the thiol to the nitrile triple bond. The spectroscopic properties of these complexes have been reported along with the molecular structures of 1, 2, and 7 as established by X-ray crystallography which indicated that these compounds exhibit square-planar coordination geometry around the platinum center. Four N-H···Cl intermolecular contacts (N-H···Cl ca. 2.5-2.7 Å) between each chlorine atom and the N-H proton of the imino thioether ligand gave rise to "dimers" Pt2Cl4L4 (L = imino thioether) formed by two PtCl2L2 units. The cytotoxic properties of these new platinum(II) complexes were evaluated against various human cancer cell lines. Among all derivatives, trans-[PtCl2{E-N(H)═C(SEt)CH2Ph}2] showed the greatest in vitro cytotoxic activity being able to decrease cancer cell viability roughly 3-fold more effectively than cisplatin.
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Affiliation(s)
- Paolo Sgarbossa
- Department of Industrial Engineering, University of Padua, Via F. Marzolo, 9, 35131 Padua, Italy
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Patel MN, Parmar PA, Gandhi DS, Patidar AP. DNA interactions and cytotoxic studies of cis-platin analogues of substituted 2,2'-bipyridines. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:54-59. [PMID: 22750337 DOI: 10.1016/j.saa.2012.05.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 04/28/2012] [Accepted: 05/17/2012] [Indexed: 06/01/2023]
Abstract
Platinum(II) complexes [Pt(4″-fpbpy)Cl(2)] (1), [Pt(4″-mepbpy)Cl(2)] (2), [Pt(4″-mpbpy)Cl(2)] (3) and [Pt(4″-bopbpy)Cl(2)] (4) {where 4″-fpbpy=4-(4″-fluorophenyl)-6-phenyl-2,2'-bipyridine, 4″-mepbpy=4-(4″-methylphenyl)-6-phenyl-2,2'-bipyridine, 4″-mpbpy=4-(4″-methoxyphenyl)-6-phenyl-2,2'-bipyridine, 4″-bopbpy=4-(4″-benzyloxyphenyl)-6-phenyl-2,2'-bipyridine} have been synthesized and characterized. The binding strength and binding mode of the complexes with HS DNA (Herring Sperm) have been investigated by absorption titration and viscosity measurement studies. The results have been revealed that the complexes bind to DNA by covalent mode with intrinsic binding constant K(b) ranging from 6.05×10(4)M(-1) to 3.48×10(5)M(-1). The unwinding angle of pUC19 DNA has been evaluated by gel electrophoresis assay. The brine shrimp bioassay has been performed to study the in vitro cytotoxic properties of the synthesized metal complexes.
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Affiliation(s)
- Mohan N Patel
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388 120, Gujarat, India.
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Đurović M, Bogojeski J, Petrović B, Petrović D, Heinemann FW, Bugarčić ŽD. Ligand substitution reactions of some sterically hindered Pt(II) complexes. The crystal structures of [TLtBuH2](ClO4)2·0.5H2O. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.04.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Petrović B, Bugarčić ŽD, Dees A, Ivanović-Burmazović I, Heinemann FW, Puchta R, Steinmann SN, Corminboeuf C, van Eldik R. Role of π-acceptor effects in controlling the lability of novel monofunctional Pt(II) and Pd(II) complexes: crystal structure of [Pt(tripyridinedimethane)Cl]Cl. Inorg Chem 2012; 51:1516-29. [PMID: 22263538 DOI: 10.1021/ic201807a] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The kinetics and mechanism of substitution reactions of novel monofunctional [Pt(tpdm)Cl](+) and [Pd(tpdm)Cl](+) complexes (where tpdm = tripyridinedimethane) and their aqua analogues with thiourea (tu), L-methionine (L-met), glutathione (GSH), and guanosine-5'-monophosphate (5'-GMP) were studied in 0.1 M NaClO(4) at pH = 2.5 (in the presence of 10 mM NaCl for reactions of the chlorido complexes). The reactivity of the investigated nucleophiles follows the order tu > l-met > GSH > 5'-GMP. The reported rate constants showed the higher reactivity of the Pd(II) complexes as well as the higher reactivity of the aqua complex than the corresponding chlorido complex. The negative values reported for the activation entropy as well as the activation volume confirmed an associative substitution mode. In addition, the molecular and crystal structure of [Pt(tpdm)Cl]Cl was determined by X-ray crystallography. The compound crystallizes in a monoclinic space group C2/c with two independent molecules of the complex and unit cell dimensions of a = 38.303(2) Å, b = 9.2555(5) Å, c = 27.586(2) Å, β = 133.573(1)°, and V = 7058.3(8) Å(3). The cationic complex [Pt(tpdm)Cl](+) exhibits square-planar coordination around the Pt(II) center. The lability of the [Pt(tpdm)Cl](+) complex is orders of magnitude lower than that of [Pt(terpyridine)Cl](+). Quantum chemical calculations were performed on the [Pt(tpdm)Cl](+) and [Pt(terpyridine)Cl](+) complexes and their reactions with thiourea. Theoretical computations for the corresponding Ni(II) complexes clearly demonstrated that π-back-bonding properties of the terpyridine chelate can account for acceleration of the nucleophilic substitution process as compared to the tpdm chelate, where introduction of two methylene groups prevents such an effective π-back bonding.
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Affiliation(s)
- Biljana Petrović
- Faculty of Science, University of Kragujevac, Radoja Domanovica 12, P.O. Box 60, 34000 Kragujevac, Serbia
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Bugarčić ŽD, Bogojeski J, Petrović B, Hochreuther S, van Eldik R. Mechanistic studies on the reactions of platinum(ii) complexes with nitrogen- and sulfur-donor biomolecules. Dalton Trans 2012; 41:12329-45. [DOI: 10.1039/c2dt31045g] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Bogojeski J, Jelić R, Petrović D, Herdtweck E, Jones PG, Tamm M, Bugarčić ŽD. Equilibrium studies of the reactions of palladium(II) bis(imidazolin-2-imine) complexes with biologically relevant nucleophiles. The crystal structures of [(TLtBu)PdCl]ClO4 and [(BLiPr)PdCl2]. Dalton Trans 2011; 40:6515-23. [PMID: 21597617 DOI: 10.1039/c1dt10289c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics and the mechanism of the substitution reactions of the complex [(TL(tBu))PdCl](+), where TL(tBu) is 2,6-bis[(1,3-di-tert-butylimidazolin-2-imino)methyl]pyridine, with nucleophiles (guanosine-5'-monophosphate (5'-GMP), l-Methionine (l-Met) and l-Histidine (l-His)) were studied using variable-temperature stopped-flow techniques in aqueous 0.1 M NaClO(4) with 10 mM NaCl at 298 K. The order of reactivity is: l-Met > 5'-GMP > l-His. The formation equilibria of [(BL(iPr))Pd(H(2)O)(2)](2+), where BL(iPr) is 1,2-bis(1,3diisopropyl-4,5-dimethylimidazolin-2-imino)ethane, and [(TL(tBu))Pd(H(2)O)](2+) with some biologically relevant ligands (l-Met, 5'-GMP and l-His) were also studied. The stoichiometry and stability constants of the newly formed complexes are reported, and the concentration distribution of the various complex species has been evaluated as a function of pH. Comparing the values of logβ(1,1,0) for 5'-GMP, l-His and l-Met complexes, the most stable complex is with 5'-GMP followed by l-His and l-Met for both complexes, [(BL(iPr))Pd(H(2)O)(2)](2+) and [(TL(tBu))Pd(H(2)O)](2+). The crystal structures of [(TL(tBu))PdCl]ClO(4) and [(BL(iPr))PdCl(2)] were determined by X-ray diffraction. The coordination geometries around the palladium atoms are distorted square-planar, with the Pd-N1 distance to the central nitrogen atom of the TL(tBu) ligand, 1.944(2) Å, being shorter than those to the other two nitrogen atoms of TL(tBu), viz. 2.034(3) and 2.038(2) Å. The BL(iPr) complex displays similar Pd-N distances of 2.031(2) and 2.047(2) Å.
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Affiliation(s)
- Jovana Bogojeski
- Department of Chemistry, Faculty of Science, University of Kragujevac, R. Domanovića 12, P O Box 60, 34000, Kragujevac, Serbia
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Bogojeski J, Bugarčić ŽD, Puchta R, van Eldik R. Kinetic Studies on the Reactions of Different Bifunctional Platinum(II) Complexes with Selected Nucleophiles. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000654] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kinetic and thermodynamic studies on reactions of [PtCl(bpma)]+ and [Pt(bpma)H2O]2+ (bpma = bis-(2-pyridylmethyl)amine) with some azoles and diazines. TRANSIT METAL CHEM 2010. [DOI: 10.1007/s11243-010-9436-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Banerjee S, Sengupta PS, Mukherjee AK. A detailed theoretical DFT study of the hydrolysis mechanism of orally active anticancer drug ZD0473. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.01.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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A detailed theoretical study of the interaction of thiourea with cis-diaqua(ethylenediamine) platinum(II). ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2009.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shehata MR, Shoukry MM, Abdel-Shakour FH, van Eldik R. Equilibrium Studies on Complex-Formation Reactions of Pd[(2-(2-aminoethyl)pyridine)(H2O)2]2+with Ligands of Biological Significance and Displacement Reactions of DNA Constituents. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900352] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Soldatović T, Bugarčić ŽD, van Eldik R. Influence of the chloride concentration on ligand substitution reactions of [Pt(SMC)Cl2] with biologically relevant nucleophiles. Dalton Trans 2009:4526-31. [DOI: 10.1039/b822718g] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Equilibrium and 1H NMR Kinetic Study of the Reactions of Dichlorido [S-Methyl-L-Cysteine(N,S)]Platinum(II) Complex with Some Relevant Biomolecules. J SOLUTION CHEM 2008. [DOI: 10.1007/s10953-008-9346-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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