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Samanta A, Ghosh GK, Mitra I, Mukherjee S, K JCB, Mukhopadhyay S, Linert W, Moi SC. Ligand substitution reaction on a platinum(ii) complex with bio-relevant thiols: kinetics, mechanism and bioactivity in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c4ra06137c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Kinetics of the interaction between [Pt(pic)(H2O)2](ClO4)2and selected thiols has been studied in aqueous medium as a function of [complex], [thiol], pH and temperature at constant ionic strength.
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Affiliation(s)
- Avradeep Samanta
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209, India
| | - Goutam Kr. Ghosh
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209, India
| | - Ishani Mitra
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209, India
| | - Subhajit Mukherjee
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209, India
| | - Jagadeesh C. Bose K
- Department of Bio-Tech
- National Institute of Technology
- Durgapur-713209, India
| | - Sudit Mukhopadhyay
- Department of Bio-Tech
- National Institute of Technology
- Durgapur-713209, India
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry
- Vienna University of Technology
- Vienna, Austria
| | - Sankar Ch. Moi
- Department of Chemistry
- National Institute of Technology
- Durgapur-713209, India
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Grau M, Rigodanza F, White AJP, Sorarù A, Carraro M, Bonchio M, Britovsek GJP. Ligand tuning of single-site manganese-based catalytic antioxidants with dual superoxide dismutase and catalase activity. Chem Commun (Camb) 2014; 50:4607-9. [DOI: 10.1039/c4cc00758a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bio-inspired Mn(ii) complex with a linear pentadentate ligand and an alternating NSNSN coordination displays excellent dual SOD/CAT-like antioxidant activity and good stability in aqueous environment.
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Affiliation(s)
- Michaela Grau
- Department of Chemistry
- Imperial College London
- London SW7 2AY, UK
| | - Francesco Rigodanza
- ITM-CNR and Department of Chemical Sciences
- University of Padova
- 35131 Padova, Italy
| | | | - Antonio Sorarù
- ITM-CNR and Department of Chemical Sciences
- University of Padova
- 35131 Padova, Italy
| | - Mauro Carraro
- ITM-CNR and Department of Chemical Sciences
- University of Padova
- 35131 Padova, Italy
| | - Marcella Bonchio
- ITM-CNR and Department of Chemical Sciences
- University of Padova
- 35131 Padova, Italy
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Ching HYV, Clarke RJ, Rendina LM. Supramolecular β-Cyclodextrin Adducts of Boron-Rich DNA Metallointercalators Containing Dicarba-closo-dodecaborane(12). Inorg Chem 2013; 52:10356-67. [DOI: 10.1021/ic401060k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ronald J. Clarke
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Louis M. Rendina
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
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Ghosh GK, Misra K, Linert W, Moi SC. Interaction of Glutathione With Cis-(2-Aminomethylpyridine)diaqua platinum(II) Perchlorate in Aqueous Medium: Their Kinetics and Mechanism. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/15533174.2012.754760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Goutam Kr. Ghosh
- a Department of Chemistry , National Institute of Technology , Durgapur , India
| | - Koyel Misra
- a Department of Chemistry , National Institute of Technology , Durgapur , India
| | - Wolfgang Linert
- b Institute of Applied Synthetic Chemistry , Vienna University of Technology , Vienna , Austria
| | - Sankar Chandra Moi
- a Department of Chemistry , National Institute of Technology , Durgapur , India
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Ghosh GK, Misra K, Baskim M, Linert W, Moi SC. Kinetics and Mechanism of the Interaction of Di-μ-hydroxobis(1,10-phenanthroline)dipalladium(II) Perchlorate with Thioglycolic Acid and Glutathione in Aqueous Solution. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-013-9973-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Jovanović S, Petrović B, Čanović D, Bugarčić ŽD. Kinetics of the substitution reactions of some Pt(II) complexes with 5′-GMP and L
-histidine. INT J CHEM KINET 2010. [DOI: 10.1002/kin.20537] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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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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Arambula JF, Sessler JL, Fountain ME, Wei WH, Magda D, Siddik ZH. Gadolinium texaphyrin (Gd-Tex)-malonato-platinum conjugates: synthesis and comparison with carboplatin in normal and Pt-resistant cell lines. Dalton Trans 2009:10834-40. [PMID: 20023913 DOI: 10.1039/b912089k] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a new PEG-solubilized gadolinium texaphyrin (Gd-Tex) conjugate containing a malonate-Pt(NH(3))(2) moiety is described. The effect of the tumor localizing Gd-Tex macrocycle on platinum activity was evaluated in cell culture. The malonate moiety, analogous to that present in carboplatin, is expected to release an aquated Pt(NH(3))(2) species under physiological conditions. The half-life in phosphate-buffered saline was found to be ca. 3 days at room temperature, and the hydrolytic product released from the conjugate was collected and confirmed as Pt-based by flameless atomic absorption spectrophotometry. Anti-proliferative activity was tested using A549 human lung cancer and A2780 human ovarian cancer cell lines. In both cell lines, the activity of the Gd-Tex conjugate was found to be similar to that of carboplatin. Efficacy against a Pt-resistant ovarian cell line greater than that displayed by carboplatin was also observed.
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Affiliation(s)
- Jonathan F Arambula
- Department of Chemistry and Biochemistry, Texas Institute for Diagnostics and Drug Development, 1 University Station-A5300, The University of Texas, Austin, TX 78712-0165, USA
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Netland KA, Graziani O, Krivokapić A, Heyn RH, Tilset M. The synthesis and thermal degradation products of the C–H bond activating complex [(diimine)Pt(Me)(OSO2CF3)]. J COORD CHEM 2009. [DOI: 10.1080/00958970902991757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kjetil A. Netland
- a Department of Chemistry , University of Oslo , P. O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Olivier Graziani
- b SINTEF Materials and Chemistry , P. O. Box 124 Blindern, N-0314 Oslo, Norway
| | - Alexander Krivokapić
- a Department of Chemistry , University of Oslo , P. O. Box 1033 Blindern, N-0315 Oslo, Norway
| | - Richard H. Heyn
- b SINTEF Materials and Chemistry , P. O. Box 124 Blindern, N-0314 Oslo, Norway
| | - Mats Tilset
- c Department of Chemistry , Centre for Theoretical and Computational Chemistry, University of Oslo , P. O. Box 1033 Blindern, N-0315 Oslo, Norway
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Adrian RA, Broker GA, Tiekink ERT, Walmsley JA. Palladium(II) complexes of 1,10-phenanthroline: Synthesis and X-ray crystal structure determination. Inorganica Chim Acta 2008; 361:1261-1266. [PMID: 19693286 PMCID: PMC2728503 DOI: 10.1016/j.ica.2007.08.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two palladium(II) complexes, [Pd(phen)(N identical withCCH(3))(2)][O(3)SCF(3)](2) (1) and [Pd(phen)(mu-OH)](2)[O(3)SCF(3)](2).2H(2)O (2) (where phen= 1,10-phenanthroline), have been crystallized following the reaction of Pd(phen)Cl(2) with silver triflate, Ag(O(3)SCF(3)), in acetonitrile and water, respectively. The structures of both complexes are based on a Pd(phen)(2+) metal core, with two acetonitrile molecules binding in a monodentate fashion in complex 1 and two hydroxo bridges holding together two cores to form a dimer in complex 2. Additionally, both complexes present a hydrogen bonded 3-D network involving the triflate anions in 1, and water and triflate anions in 2. Both complexes have been characterized by infrared and (1)H NMR spectroscopy and their crystal structures determined by X-ray crystallography.
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Affiliation(s)
- Rafael A. Adrian
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249-0698
| | - Grant A. Broker
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249-0698
| | - Edward R. T. Tiekink
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249-0698
| | - Judith A. Walmsley
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249-0698
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Singh A, Anandhi U, Cinellu MA, Sharp PR. Diimine supported group 10 hydroxo, oxo, amido, and imido complexes. Dalton Trans 2008:2314-27. [PMID: 18414757 DOI: 10.1039/b715663d] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of L(2) = diimine (Bian = bis(3,5-diisopropylphenylimino)acenapthene, Bu(t)(2)bpy = 4,4'-di-tert-butyl-2,2'-bipyridine) supported aqua, hydroxo, oxo, amido, imido, and mixed complexes have been prepared. Deprotonation of [L(2)Pt(mu-OH)](2)(2+) with 1,8-bis(dimethylamino)naphthalene, NaH, or KOH yields [(L(2)Pt)(2)(mu-OH)(mu-O)](+) as purple (Bian) or red (Bu(t)(2)bpy) solids. Excess KOH gives dark blue [(Bian)Pt(mu-O)](2). MeOTf addition to [(Bu(t)(2)bpy)(2)Pt(2)(mu-OH)(mu-O)](+) gives [(Bu(t)(2)bpy)(2)Pt(2)(mu-OH)(mu-OMe)](2+) while [(Bian)Pt(mu-O)](2) yields [(Bian)(2)Pt(2)(mu-OMe)(mu-O)](+). Treatment of [(Bian)Pt(mu-O)](2) with "(Ph(3)P)Au(+)" gives deep purple [(Bian)(2)Pt(2)(mu-O)(mu-OAuPPh(3))](+) while (COD)Pt(OTf)(2) gives a low yield of [(Bian)Pt(3)(mu-OH)(3)(COD)(2)](OTf)(3). Ni(Bu(t)(2)bpy)Cl(2) and [(Ph(3)PAu)(3)(mu-O)](+) in a 3 : 2 ratio yield red [Ni(3)(Bu(t)(2)bpy)(3)(mu-O)(2)](2+). M(Bu(t)(2)bpy)Cl(2) (M = Pd, Pt) and [(Ph(3)PAu)(3)(mu-O)](+) give [M(Bu(t)(2)bpy)(mu-OAuPPh(3))](2)(2+) and [Pd(4)(Bu(t)(2)bpy)(4)(mu-OAuPPh(3))](3+). Addition of ArNH(2) to [M(Bu(t)(2)bpy)(mu-OH)](2)(2+) (M = Pd, Pt) gives [Pt(2)(Bu(t)(2)bpy)(2)(mu-NHAr)(mu-OH)](2+) (Ar = Ph, 4-tol, 4-C(6)H(4)NO(2)) and [M(Bu(t)(2)bpy)(mu-NHAr)](2)(2+) (Ar = Ph, tol). Deprotonation of [Pt(2)(Bu(t)(2)bpy)(2)(mu-NH-tol)(mu-OH)](2+) with 1,8-bis(dimethylamino)naphthalene or NaH gives [Pt(2)(Bu(t)(2)bpy)(2)(mu-NH-tol)(mu-O)](+). Deprotonation of [Pt(Bu(t)(2)bpy)(mu-NH-tol)](2)(2+) with KOBu(t) gives deep green [Pt(Bu(t)(2)bpy)(mu-N-tol)](2). The triflate complexes M(Bu(t)(2)bpy)(OTf)(2) (M = Pd, Pt) are obtained from M(Bu(t)(2)bpy)Cl(2) and AgOTf. Treatment of Pt(Bu(t)(2)bpy)(OTf)(2) with water gives the aqua complex [Pt(Bu(t)(2)bpy)(H(2)O)(2)](OTf)(2).
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Affiliation(s)
- Anupam Singh
- 125 Chemistry, University of Missouri, Columbia, Missouri 65211, USA
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Iwatsuki S, Itou T, Ito H, Mori H, Uemura K, Yokomori Y, Ishihara K, Matsumoto K. Isomerization reaction of head-to-head α-pyridonato-bridged ethylenediaminepalladium(ii) binuclear complex, [Pd2(en)2(C5H4NO)2]2+, in aqueous solution. Dalton Trans 2006:1497-504. [PMID: 16538268 DOI: 10.1039/b515743a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Head-to-head bis(alpha-pyridonato)-bridged bis(ethylenediamine)dipalladium(ii), HH-[Pd(2)(en)(2)(alpha-pyridonato)(2)](ClO(4))(2), was synthesized and structurally characterized by X-ray crystallography. The (1)H NMR spectra show that the head-to-head (HH) dimer produces the head-to-tail (HT) dimer and monomers ([Pd(en)(alpha-pyridone)(2)](2+), [Pd(en)(H(2)O)(alpha-pyridone)](2+), [Pd(en)(H(2)O)(2)](2+), etc.) in aqueous solution, and the relative amount of dimers to monomers is dependent on the total concentration of the HH dimer dissolved as well as the acidity of the solution. It was found that the formation of the HH and HT dimers from the monomers is fast, and the HT dimer is produced from the HH dimer only via coexisting monomers, i.e., there is no direct isomerization path between the HH and HT dimers. The kinetic analyses for the HH <==>HT isomerization reaction with time-resolved (1)H NMR measurements revealed that the reaction proceeds via first-order kinetics, which was explained based on a relaxation process. The rate determining step for HH <==>HT isomerization is the reaction step between the mono-alpha-pyridone complex and the bis-alpha-pyridone complex, [Pd(en)(H(2)O)(alpha-pyridone)](2+)+alpha-pyridone <==> [Pd(en)(alpha-pyridone)(2)](2+).
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Affiliation(s)
- Satoshi Iwatsuki
- Graduate School of Science and Engineering, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
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Schiessl WC, Summa NK, Weber CF, Gubo S, Dücker-Benfer C, Puchta R, van Eikema Hommes NJR, van Eldik R. Experimental and Theoretical Approaches to the Protonation of Thiourea: A Convenient Nucleophile in Coordination Chemistry Revisited. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200500157] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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FEKL ULRICH, GOLDBERG KARENI. HOMOGENEOUS HYDROCARBON CH BOND ACTIVATION AND FUNCTIONALIZATION WITH PLATINUM. ADVANCES IN INORGANIC CHEMISTRY 2003. [DOI: 10.1016/s0898-8838(03)54005-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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BURGESS JOHN, HUBBARD COLIND. LIGAND SUBSTITUTION REACTIONS. ADVANCES IN INORGANIC CHEMISTRY 2003. [DOI: 10.1016/s0898-8838(03)54002-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fekl U, van Eldik R, Richardson C, Robinson WT. Bowl-shaped and highly inert bis(mu-hydroxo)-platinum(II) dimer. Inorg Chem 2001; 40:3247-51. [PMID: 11399202 DOI: 10.1021/ic0009977] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- U Fekl
- Institute for Organic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
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