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Roy PS, Mamun MAA, Roknuzzaman, Ghosh S, Kabir SE. Triruthenium clusters containing mono and bidentate phosphines: Synthesis, structure, thermal reactivity and fluxional behavior. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Qin HL, Leng J, Zhang W, Kantchev EAB. DFT modelling of a diphosphane - N-heterocyclic carbene-Rh(i) pincer complex rearrangement: a computational evaluation of the electronic effects in C-P bond activation. Dalton Trans 2018; 47:2662-2669. [PMID: 29410986 DOI: 10.1039/c7dt04759b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
DFT calculations confirmed that the rearrangement of a PCP-Rh-H pincer to a CCP-Rh-phosphane pincer occured by C-P oxidative addition (ΔG‡ = 29.5 kcal mol-1, rate-determining step), followed by P-H reductive elimination (ΔG‡ = 4.8 kcal mol-1). The oxidative addition proceeded via a 3-centered transition state and is accelerated by electron-withdrawing substituents p- to the reacting C-P bond, resulting in a reaction constant (ρ) of 2.12 for ΔG‡ and 2.76 for ΔH‡ in a Hammett-type linear free energy relationship. AIM wavefunction analyses indicated a decrease in the negative charge on the carbon bonded to Rh with a concomitant increase in the positive charge on the latter. The electronic density at the Rh-P bond critical point and the atomic charge on Rh correlate well with the Hammett constants (σ) of the p-substituents. The replacement of the Rh-bound hydride with other anions (CH3, Ph, t-Bu, OH, F, Cl, and CN) results in a decrease in the OA barrier only for CH3, which is in accordance with the experimental results. The reductive elimination occurs via a 3-centered (Rh, H, P) transition state, which adopts a conformation wherein the steric clash between the i-Pr groups is minimized, followed by recomplexation of Rh and the newly formed (i-Pr)2PH by a conformational twist around the Rh-P axis.
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Affiliation(s)
- H-L Qin
- State Key Laboratory of Silicate Materials for Architectures and School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, Hubei, People's Republic of China.
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Otero Y, Peña D, Lescop C, Ávila E, Arce A, Hissler M, Réau R, Machado R. Reaction of carbonyl trinuclear clusters with 2,5-bis(2-thienyl)-1-phenyl-phosphole as a ligand: a new pathway to ruthenacyclopentadiene and cyclopentadienone ruthenium complexes. NEW J CHEM 2018. [DOI: 10.1039/c8nj01442f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel pathway for the formation of ruthenacyclopentadiene and cyclopentadienone ruthenium complexes is described.
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Affiliation(s)
- Yomaira Otero
- Centro de Química
- Instituto Venezolano de Investigaciones Científicas (IVIC)
- Apartado 21827
- Venezuela
| | - Deisy Peña
- Centro de Química
- Instituto Venezolano de Investigaciones Científicas (IVIC)
- Apartado 21827
- Venezuela
| | | | - Edward Ávila
- Centro de Química
- Instituto Venezolano de Investigaciones Científicas (IVIC)
- Apartado 21827
- Venezuela
| | - Alejandro Arce
- Centro de Química
- Instituto Venezolano de Investigaciones Científicas (IVIC)
- Apartado 21827
- Venezuela
| | - Muriel Hissler
- Université de Rennes
- CNRS
- ISCR UMR 6226
- F-35042 Rennes
- France
| | - Regis Réau
- Université de Rennes
- CNRS
- ISCR UMR 6226
- F-35042 Rennes
- France
| | - Rubén Machado
- Centro de Química
- Instituto Venezolano de Investigaciones Científicas (IVIC)
- Apartado 21827
- Venezuela
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Thermal transformations of tris(2-thienyl)phosphine (PTh3) at low-valent ruthenium cluster centers: Part I. Carbon–hydrogen, carbon–phosphorus and carbon–sulfur bond activation yielding Ru3(CO)8L{μ-Th2P(C4H2S)}(μ-H) (L = CO, PTh3), Ru3(CO)7(μ-PTh2)2(μ3-η2-C4H2S), Ru4(CO)9(μ-CO)2(μ4-η2-C4H2S)(μ4-PTh) and Ru5(CO)11(μ-PTh2)(μ4-η4-C4H3)(μ4-S). J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.06.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shimogawa R, Konishi GI, Takao T, Suzuki H. Photoinduced Reactions of Diruthenium Tetrahydride Complexes: Carbon–Hydrogen Bond Cleavage of Tetrahydrofuran Leading to Bridging Cyclic Fischer-Type Carbene Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Toshiro Takao
- JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama 3332-0012, Japan
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Synthesis of [Ru3(CO)9(μ-dppf){P(C4H3E)3}] (E = O, S) and thermally induced cyclometalation to form [(μ-H)Ru3(CO)7(μ-dppf){μ3-(C4H3E)2P(C4H2E)}] (dppf = 1,1′-bis(diphenylphosphino)ferrocene). J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Raha AK, Uddin MN, Ghosh S, Miah AR, Richmond MG, Tocher DA, Nordlander E, Hogarth G, Kabir SE. A comparative study of the reactivity of the lightly stabilized cluster [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(μ-H)] towards tri(2-thienyl)-, tri(2-furyl)- and triphenyl-phosphine. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.08.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Reactions of the σ,π-furyl complex [Fe2(CO)6(μ-Fu)(μ-PFu2)] (Fu = C4H3O) with phosphines: Carbonyl substitution, migratory carbonyl insertion and cyclometallation-induced furan elimination. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.05.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Rahaman A, Alam FR, Ghosh S, Haukka M, Kabir SE, Nordlander E, Hogarth G. Generation of σ,π-furyl and thienyl ligands at di-iron centers via facile phosphorus–carbon bond cleavage: Synthesis and molecular structures of [Fe2(CO)6(μ-η1,η2-C4H3E){μ-P(C4H3E)2}] (E = O, S). J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.11.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Reactivity of tri(2-furyl)phosphine (PFu3) with [Mn2(CO)10–(NCMe) ] (n= 0–2): X-ray Structure of mer-[Mn(CO)3(η1-C4H3O)(PFu3)2]. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.11.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Das P, Borah M, Michaud F, Pétillon FY, Schollhammer P. Phosphorus–carbon(pyridyl) bond cleavage on reacting diphenyl-2-pyridylphosphine with triiron dodecacarbonyl. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Rahman MA, Begum N, Ghosh S, Hossain MK, Hogarth G, Tocher DA, Nordlander E, Kabir SE. Reaction of tri(2-furyl)phosphine with triosmium clusters: C–H and P–C activation to afford furyne and phosphinidene ligands. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.09.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shawkataly OB, Pankhi MAA, Fun HK, Yeap CS. Syntheses, structure characterisation and X-ray structures of the complexes Ru3(CO)11L [L=Ph2P(C6H4Me-p), Ph2PC6F5, P(C6H4Cl-p)3, P(3,5-CF3–C6H3)3 and P(C6H4Me-p)3]. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.06.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Meijboom R, Dhirori P, Mavunkal IJ. Synthesis and characterization of [Ru 3(CO) 12 − n L n ] (L = P(O i Pr) 3; n = 1, 2, 3) and the “Star of David” disorder in bis- and tris-substituted products. J COORD CHEM 2010. [DOI: 10.1080/00958970903304398] [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)
- Reinout Meijboom
- a Department of Chemistry , University of Johannesburg , P.O. Box 524, Auckland Park 2006, Johannesburg , South Africa
| | - Phibion Dhirori
- b Department of Chemistry , University of Botswana , P. Bag 0704 , Gaborone , Botswana
| | - Ipe J. Mavunkal
- b Department of Chemistry , University of Botswana , P. Bag 0704 , Gaborone , Botswana
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Ghosh S, Khatun M, Haworth DT, Lindeman SV, Siddiquee TA, Bennett DW, Hogarth G, Nordlander E, Kabir SE. Activation of tri(2-furyl)phosphine at a dirhenium centre: Formation of phosphido-bridged dirhenium complexes. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.04.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Uddin MN, Begum N, Hassan MR, Hogarth G, Kabir SE, Miah MA, Nordlander E, Tocher DA. Reactivity of triruthenium thiophyne and furyne clusters: competitive S-C and P-C bond cleavage reactions and the generation of highly unsymmetrical alkyne ligands. Dalton Trans 2008:6219-30. [PMID: 18985255 DOI: 10.1039/b806846a] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and reactivity of the thiophyne and furyne clusters [Ru3(CO)7(mu-dppm)(mu3-eta2-C4H2E)(mu-P(C4H3E)2)(mu-H)] (E = S, O) is reported. Addition of P(C4H3E)3 to [Ru3(CO)10(mu-dppm)] (1) at room temperature in the presence of Me3NO gives simple substitution products [Ru3(CO)9(mu-dppm)(P(C4H3E)3)] (E = S, 2; E = O, 3). Mild thermolysis in the presence of further Me3NO affords the thiophyne and furyne complexes [Ru3(CO)7(mu-dppm)(mu3-eta2-C4H2E)(mu-P(C4H3E)2)(mu-H)] (E = S, 4; E = O, 6) resulting from both carbon-hydrogen and carbon-phosphorus bond activation. In each the C4H2E (E = S, O) ligand donates 4-electrons to the cluster and the rings are tilted with respect to the mu-dppm and the phosphido-bridged open triruthenium unit. Heating 4 at 80 degrees C leads to the formation of the ring-opened cluster [Ru3(CO)5(mu-CO)(mu-dppm)(mu3-eta3-SC4H3)(mu-P(C4H3S)2)] (5) resulting from carbon-sulfur bond scission and carbon-hydrogen bond formation and containing a ring-opened mu3-eta3-1-thia-1,3-butadiene ligand. In contrast, a similar thermolysis of 3 affords the phosphinidene cluster [Ru3(CO)7(mu-dppm)(mu3-eta2-C4H2O)(mu3-P(C4H3O))] (7) resulting from a second phosphorus-carbon bond cleavage and (presumably) elimination of furan. Treatment of 4 and 6 with PPh3 affords the simple phosphine-substituted products [Ru3(CO)6(PPh3)(mu-dppm)(mu3-eta2-C4H2E)(mu-P(C4H3E)2)(mu-H)] (E = S, 8; E = O, 9). Both thiophyne and furyne clusters 4 and 6 readily react with hydrogen bromide to give [Ru3(CO)6Br(mu-Br)(mu-dppm)(mu3-eta2-eta1-C4H2E)(mu-P(C4H3E)2)(mu-H)] (E = S, 10; E = O, 11) containing both terminal and bridging bromides. Here the alkynes bind in a highly unsymmetrical manner with one carbon acting as a bridging alkylidene and the second as a terminally bonded Fisher carbene. As far as we are aware, this binding mode has only previously been noted in ynamine complexes or those with metals in different oxidation states. The crystal structures of seven of these new triruthenium clusters have been carried out, allowing a detailed analysis of the relative orientations of coordinated ligands.
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Affiliation(s)
- Md Nazim Uddin
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
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