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Momeni BZ, Abd-El-Aziz AS. Recent advances in the design and applications of platinum-based supramolecular architectures and macromolecules. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Noori M, Shafaatian B, Notash B. New organoplatinum complexes containing di-2-pyridyl ketone; single crystal structure determination, solvatochromism and kinetic investigations. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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The history of organoplatinum chemistry in Iran: 40-year research. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01892-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Sadri N, Hoseini SJ. Oxidative addition of 1,4-dichloro-2-butyne to an organoplatinum complex: A new precursor for synthesis of ultrasmall Pt nanoparticles thin film at liquid/liquid interface as the electrocatalyst in methanol oxidation reaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nazanin Sadri
- Department of Chemistry, Faculty of Sciences; Yasouj University; Yasouj 7591874831 Iran
| | - S. Jafar Hoseini
- Department of Chemistry, Faculty of Sciences; Yasouj University; Yasouj 7591874831 Iran
- Prof. Rashidi Laboratory of Organometallic Chemistry, Department of Chemistry, College of Sciences; Shiraz University; Shiraz 7146713565 Iran
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Momeni BZ, Fathi N, Moghadasi M, Biglari A, Janczak J. New insight into the reactions of organoplatinum(II) complexes with diorganotin dichloride and diisothiocyanate: Oxidative addition, reductive elimination and α-elimination. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Design of alkyl- and haloalkyl complexes of dimethylplatinum(IV) via oxidative addition: Reactivity, characterization and crystal structures. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.10.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Momeni BZ, Fathi N, Mohagheghi A. Easy oxidative addition of the carbon–halogen bond by dimethylplatinum(II) complexes containing a related series of diimine ligands: Synthesis, spectral characterization and crystal structure. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.09.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kinetico-mechanistic studies on CX (X=H, F, Cl, Br, I) bond activation reactions on organoplatinum(II) complexes. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.06.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Nabavizadeh SM, Aseman MD, Ghaffari B, Rashidi M, Hosseini FN, Azimi G. Kinetics and mechanism of oxidative addition of MeI to binuclear cycloplatinated complexes containing biphosphine bridges: Effects of ligands. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Nabavizadeh SM, Habibzadeh S, Rashidi M, Puddephatt RJ. Oxidative Addition of Ethyl Iodide to a Dimethylplatinum(II) Complex: Unusually Large Kinetic Isotope Effects and Their Transition-State Implications. Organometallics 2010. [DOI: 10.1021/om100810t] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Sepideh Habibzadeh
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Mehdi Rashidi
- Department of Chemistry, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
- Department of Chemistry, University of Western Ontario, London, Canada N6A 5B7
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Habibzadeh S, Rashidi M, Nabavizadeh SM, Mahmoodi L, Hosseini FN, Puddephatt RJ. Steric and Solvent Effects on the Secondary Kinetic α-Deuterium Isotope Effects in the Reaction of Methyl Iodide with Organoplatinum(II) Complexes: Application of a Second-Order Technique in Measuring the Rates of Rapid Processes. Organometallics 2009. [DOI: 10.1021/om900778u] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sepideh Habibzadeh
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Mehdi Rashidi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Leila Mahmoodi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Richard J. Puddephatt
- Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7
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Momeni BZ, Hosseini SS, Rominger F. Unexpected formation of dihaloplatinum(II) and platinum(IV) complexes in the reaction of [PtMe2(bu2bpy)] with 1,2-dibromotetrachloroethane: Crystal structure of trans-[PtMe2BrCl(bu2bpy)]. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Au RHW, Jennings MC, Puddephatt RJ. Supramolecular Organoplatinum(IV) Chemistry: Sequential Introduction of Amide Hydrogen Bonding Groups. Organometallics 2009. [DOI: 10.1021/om900272w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Richard H. W. Au
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
| | - Michael C. Jennings
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
| | - Richard J. Puddephatt
- Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7
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Momeni BZ, Moradi Z, Rashidi M, Rominger F. Insertion of tin(II) bromide into Pt–X (X=Cl, Br) bond of dimethylplatinum(IV) complexes: A novel polymorphic form of [PtBr2(bpy)]. Polyhedron 2009. [DOI: 10.1016/j.poly.2008.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Au RHW, Jennings MC, Puddephatt RJ. Supramolecular organoplatinum(iv) chemistry: a nanotube structure supported by hydrogen bonds. Dalton Trans 2009:3519-25. [DOI: 10.1039/b900855a] [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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Hoseini SJ, Nabavizadeh SM, Jamali S, Rashidi M. Uncommon Solvent Effect in Oxidative Addition of MeI to a New Dinuclear Platinum Complex Containing a Platina(II)cyclopentane Moiety. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800637] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Jamali S, Nabavizadeh SM, Rashidi M. Binuclear cyclometalated organoplatinum complexes containing 1,1'-bis(diphenylphosphino)ferrocene as spacer ligand: kinetics and mechanism of MeI oxidative addition. Inorg Chem 2008; 47:5441-52. [PMID: 18484719 DOI: 10.1021/ic701910d] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The binuclear complex [Pt2Me2(ppy)2(mu-dppf)], 1, in which ppy = deprotonated 2-phenylpyridyl and dppf = 1,1'-bis(diphenylphosphino)ferrocene, was synthesized by the reaction of [PtMe(SMe2)(ppy)] with 0.5 equiv of dppf at room temperature. In this reaction when 1 equiv of dppf was used, the dppf chelating complex 2, [PtMe(dppf)(ppy-kappa1C)], was obtained. The reaction of Pt(II)-Pt(II) complex 1 with excess MeI gave the Pt(IV)-Pt(IV) complex [Pt2I2Me4(ppy)2(mu-dppf)], 3. When the reaction was performed with 1 equiv of MeI, a mixture containing unreacted complex 1, a mixed-valence Pt(II)-Pt(IV) complex [PtMe(ppy)(mu-dppf)PtIMe2(ppy)], 4, and complex 3 was obtained. In a comparative study, the reaction of [PtMe(SMe2)(ppy)] with 1 equiv of monodentate phosphine PPh3 gave [PtMe(ppy)(PPh3)], A. MeI was reacted with A to give the platinum(IV) complex [PtMe2I(ppy)(PPh3)], C. All the complexes were fully characterized using multinuclear (1H, 31P, 13C, and 195Pt) NMR spectroscopy, and complex 2 was further identified by single crystal X-ray structure determination. The reaction of binuclear Pt(II)-Pt(II) complex 1 with excess MeI was monitored by low temperature 31P NMR spectroscopy and further by 1H NMR spectroscopy, and the kinetics of the reaction was studied by UV-vis spectroscopy. On the basis of the data, a mechanism has been suggested for the reaction which overall involved stepwise oxidative addition of MeI to the two Pt(II) centers. In this suggested mechanism, the reaction proceeded through a number of Pt(II)-Pt(IV) and Pt(IV)-Pt(IV) intermediates. Although MeI in each step was trans oxidatively added to one of the Pt(II) centers, further trans to cis isomerizations of Me and I groups were also identified. A comparative kinetic study of the reaction of monomeric platinum(II) complex A with MeI was also performed. The rate of reaction of MeI with complex 1 was some 3.5 times faster than that with complex A, indicating that dppf in the complex 1, as compared with PPh 3 in the complex A, has significantly enhanced the electron richness of the platinum centers.
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Affiliation(s)
- Sirous Jamali
- Chemistry Department, Persian Gulf University, Bushehr 75169, Iran.
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Nabavizadeh SM, Hoseini SJ, Momeni BZ, Shahabadi N, Rashidi M, Pakiari AH, Eskandari K. Oxidative addition of n-alkyl halides to diimine-dialkylplatinum(II) complexes: a closer look at the kinetic behaviors. Dalton Trans 2008:2414-21. [PMID: 18461196 DOI: 10.1039/b800771c] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The n-alkyl halides, RX, were oxidatively added to the platina(II)cyclopentane complexes [Pt[(CH2)4](NN)], in which NN = bpy (2,2'-bipyridyl) or phen (1,10-phenanthroline), to give the platinum(IV) complexes [PtRX[(CH2)4](NN)], R = Et and X = Br or I; R = nBu and X = I, 1-3. The same reactions with the analogous dimethyl complex [PtMe2(bpy)] gave the expected platinum(IV) complexes [PtRXMe2(bpy)], R = Et or nPr and X = Br or I; R = nBu and X = I, 4-8. Kinetics of the reactions in benzene and acetone was studied using UV-vis spectrophotometery and a common S(N)2 mechanism was suggested for each case. The platina(ii)cyclopentane complexes reacted faster than the corresponding dimethyl analogs by a factor of 2-3. This is described as being due to a lower positive charge, calculated by density functional theory (DFT), on the platinum atom of [Pt[(CH)2)4](bpy)] compared with that on the platinum atom of the dimethyl analog [PtMe2(bpy)]. The values of DeltaDeltaS(double dagger) = DeltaS(double dagger)(acetone) - DeltaS(double dagger)(benzene) were found to be either positive or negative in different reactions and this is related to the solvation of the corresponding alkyl halide. It is suggested that in these reactions of RX reagents, for a given X, the electronic effects of the R group are mainly responsible for the change in the rates of the reactions and the bulkiness of the group is far less important.
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Affiliation(s)
- S Masoud Nabavizadeh
- Inorganic Chemistry Division, Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71454, Iran
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Hydrogen-halide versus alkyl-halide oxidative addition in dimethyl platinum(II) complexes: Crystal structure of [PtBr2(bpy)]. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2007.01.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Jamali S, Nabavizadeh SM, Rashidi M. Oxidative Addition of Methyl Iodide to a New Type of Binuclear Platinum(II) Complex: a Kinetic Study. Inorg Chem 2005; 44:8594-601. [PMID: 16271001 DOI: 10.1021/ic0511064] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new organodiplatinum(II) complex cis,cis-[Me2Pt(mu-NN)(mu-dppm)PtMe2] (1), in which NN = phthalazine and dppm = bis(diphenylphosphino)methane, is synthesized by the reaction of cis,cis-[Me2Pt(mu-SMe2)(mu-dppm)PtMe2] with 1 equiv of NN. Complex 1 has a 5d(pi)(Pt) --> pi(imine) metal-to-ligand charge-transfer band in the visible region, which was used to easily follow the kinetics of its reaction with MeI. Meanwhile, the complex contains a robust bridging dppm ligand that holds the binuclear integrity during the reaction. A double MeI oxidative addition was observed, as shown by spectrophotometry and confirmed by a low-temperature 31P NMR study. The classical S(N)2 mechanism was suggested for both steps, and the involved intermediates were suggested. Consistent with the proposed mechanism, the rates of the reactions at different temperatures were slower in benzene than in acetone and large negative deltaS values were found in each step. However, some abnormalities were observed in the related rate constants and deltaS values, which were demonstrated to be due to the associative involvement of the polar acetone molecules in the reactions. The rates are almost 6 times slower in the second step as compared to the first step because of the electronic effects transmitted through the ligands and the steric effects.
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Affiliation(s)
- Sirous Jamali
- Chemistry Department, Persian Gulf University, Bushehr 75168, Iran
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Rashidi M, Nabavizadeh SM, Akbari A, Habibzadeh S. Secondary Kinetic Deuterium Isotope Effects in the Reaction of MeI with Organoplatinum(II) Complexes. Organometallics 2005. [DOI: 10.1021/om0500016] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mehdi Rashidi
- Chemistry Department, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | | | - Alireza Akbari
- Chemistry Department, College of Sciences, Shiraz University, Shiraz 71454, Iran
| | - Sepideh Habibzadeh
- Chemistry Department, College of Sciences, Shiraz University, Shiraz 71454, Iran
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Momeni BZ, Amini MM, Pape T, Ekkehardt Hahn F, Ng SW. Four- and five-coordinate platinum in tris[chlorotris(dimethyl sulfide)platinum(II)] pentakis(trichlorostannyl)platinate(II) from an SnCl2 insertion into a Pt–Cl bond. J Mol Struct 2004. [DOI: 10.1016/j.molstruc.2004.03.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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