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Fliedel C, Rosa V, Vileno B, Parizel N, Choua S, Gourlaouen C, Rosa P, Turek P, Braunstein P. Zwitterionic Cobalt Complexes with Bis(diphenylphosphino)(N-thioether)amine Assembling Ligands: Structural, EPR, Magnetic, and Computational Studies. Inorg Chem 2016; 55:4183-98. [PMID: 27054464 DOI: 10.1021/acs.inorgchem.5b02889] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The coordination of two heterofunctional P,P,S ligands of the N-functionalized DPPA-type bearing an alkylthioether or arylthioether N-substituent, (Ph2P)2N(CH2)3SMe (1) and (Ph2P)2N(p-C6H4)SMe (2), respectively, toward cobalt dichloride was investigated to examine the influence of the linker between the PNP nitrogen and the S atoms. The complexes [CoCl2(1)]2 (3) and [CoCl2(2)]2 (4) have been isolated, and 3 was shown by X-ray diffraction to be a unique dinuclear, zwitterion containing one CoCl moiety bis-chelated by two ligands 1 and one CoCl3 fragment coordinated by the S atom of a thioether function. The FT-IR, UV-vis, and EPR spectroscopic features of 3 were analyzed as the superposition of those of constitutive fragments identified by a retrosynthetic-type analysis. A similar approach provided insight into the nature of 4 for which no X-ray diffraction data could be obtained. A comparison between the spectroscopic features of 4 and of its constitutive fragments, [CoCl(2)2]PF6 (7) and [H2']2[CoCl4] (8) (2' = NH2(p-C6H4)SMe), and between those of 4 and 3 suggested that 4 could either have a zwitterionic structure, similar to that of 3, or contain a tetrahedral dicationic bis-chelated Co center associated with a CoCl4 dianion. Magnetic and EPR studies and theoretical calculations were performed. Doublet spin states were found for the pentacoordinated complexes [CoCl(1)2]PF6 (5) and 7 and anisotropic quadruplet spin states for the tetrahedral complexes [CoCl3(H1')] (6) (1' = NH2(CH2)3SMe) and 8. A very similar behavior was observed for 3 and 4, consisting in the juxtaposition of noninteracting doublet and quadruplet spin states. Antiferromagnetic interactions explain the formation of dimers for 6 and of layers for 8. The EPR signatures of 3 and 4 correspond to the superposition of low-spin nuclei in 5 and 7 and high-spin nuclei in 6 and 8, respectively. From DFT calculations, the solid-state structure of 4 appears best described as zwitterionic, with a low-spin state for the Co1 atom.
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Affiliation(s)
| | | | - Bertrand Vileno
- French EPR Federation of Research (REseau NAtional de Rpe interDisciplinaire, RENARD), Fédération IR-RPE CNRS 3443, 67081 Strasbourg, France
| | | | | | | | - Patrick Rosa
- CNRS, Université de Bordeaux, ICMCB , UPR9048, F-33600 Pessac, France
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2
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Synthesis and characterization of piano-stool ruthenium complexes with N,N ′-pyridine imine bidentate ligands and their application in styrene oxidation. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Chai H, Wang Q, Liu T, Yu Z. Diruthenium(ii)–NNN pincer complex catalysts for transfer hydrogenation of ketones. Dalton Trans 2016; 45:17843-17849. [DOI: 10.1039/c6dt03620a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy to construct highly efficient diruthenium(ii)–NNN pincer complex catalysts was established for the transfer hydrogenation of ketones.
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Affiliation(s)
- Huining Chai
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Qingfu Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Tingting Liu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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4
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Ghisolfi A, Fliedel C, Rosa V, Monakhov KY, Braunstein P. Combined Experimental and Theoretical Study of Bis(diphenylphosphino)(N-thioether)amine-Type Ligands in Nickel(II) Complexes for Catalytic Ethylene Oligomerization. Organometallics 2014. [DOI: 10.1021/om500141k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Alessio Ghisolfi
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Christophe Fliedel
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Vitor Rosa
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Kirill Yu. Monakhov
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
| | - Pierre Braunstein
- Laboratoire
de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France
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Risse J, Dutta B, Solari E, Scopelliti R, Severin K. Contributions to the Chemistry of the Cyclopentadienyl Complex [Cp∧RuCl2]2(“Cp-roof” = η5-1-Methoxy-2,4-tert-butyl-3-neopentylcyclopentadienyl). Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Naik S, Kumaravel M, Mague JT, Balakrishna MS. Bisamino(diphosphonite) with dangling olefin functionalities: synthesis, metal chemistry and catalytic utility of Rhiand Pdiicomplexes in hydroformylation and Suzuki–Miyaura reactions. Dalton Trans 2014; 43:1082-95. [DOI: 10.1039/c3dt52400k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Susmita Naik
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Naik S, Mague JT, Balakrishna MS. N1,N1,N4,N4-Tetrakis(dibenzylphosphino)benzene-1,4-diamine: Synthesis, structural studies and transition metal chemistry. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Chellan P, Land KM, Shokar A, Au A, An SH, Taylor D, Smith PJ, Chibale K, Smith GS. Di- and Trinuclear Ruthenium-, Rhodium-, and Iridium-Functionalized Pyridyl Aromatic Ethers: A New Class of Antiparasitic Agents. Organometallics 2013. [DOI: 10.1021/om400493k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Prinessa Chellan
- Department
of Chemistry, University of Cape Town,
Private Bag, Rondebosch 7701, South Africa
| | - Kirkwood M. Land
- Department of Biological Sciences, University of the Pacific, Stockton, California 95211, United States
| | - Ajit Shokar
- Department of Biological Sciences, University of the Pacific, Stockton, California 95211, United States
| | - Aaron Au
- Department of Biological Sciences, University of the Pacific, Stockton, California 95211, United States
| | - Seung Hwan An
- Department of Biological Sciences, University of the Pacific, Stockton, California 95211, United States
| | - Dale Taylor
- Division of Pharmacology, Department
of Medicine, University of Cape Town, K45,
OMB, Groote Schuur Hospital, Observatory, 7925, South Africa
| | - Peter J. Smith
- Division of Pharmacology, Department
of Medicine, University of Cape Town, K45,
OMB, Groote Schuur Hospital, Observatory, 7925, South Africa
| | - Kelly Chibale
- Department
of Chemistry, University of Cape Town,
Private Bag, Rondebosch 7701, South Africa
- Institute of Infectious Disease and
Molecular Medicine, University of Cape Town, Rondebosch 7701, South Africa
| | - Gregory S. Smith
- Department
of Chemistry, University of Cape Town,
Private Bag, Rondebosch 7701, South Africa
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9
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Simple tertiary phosphines to hexaphosphane ligands: Syntheses, transition metal chemistry and their catalytic applications. J CHEM SCI 2013. [DOI: 10.1007/s12039-012-0312-7] [Citation(s) in RCA: 2] [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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10
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Abarca B, Adam R, Ballesteros R. An efficient one pot transfer hydrogenation and N-alkylation of quinolines with alcohols mediated by Pd/C/Zn. Org Biomol Chem 2012; 10:1826-33. [DOI: 10.1039/c1ob05888f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Synthesis and transition metal chemistry of a bridging diphosphinite, 1,4 bis(diphenylphosphinoxy)benzene. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.08.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Yano Y, Kojima T, Fukuzumi S. Cooperative catalysis of a trinuclear ruthenium(II) complex in transfer hydrogenation of ketones by formic acid. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.100] [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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13
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Rao S, Ganesamoorthy C, Mobin SM, Balakrishna MS. New hexaphosphane ligands 1,3,5-C6H3{p-C6H4N(PX2)2}3 [X = Cl, F, C6H3OMe(C3H5)]: synthesis, derivatization and palladium(II) and platinum(II) complexes. Dalton Trans 2011; 40:5841-3. [PMID: 21552610 DOI: 10.1039/c1dt10459d] [Citation(s) in RCA: 7] [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 dodecachlorohexaphosphane, 1,3,5-C(6)H(3)[p-C(6)H(4)N(PCl(2))(2)](3) (1) was synthesized by reacting 1,3,5-tris(4'-anilino)benzene with phosphorus trichloride. Fluorination of 1 with SbF(3) produces 1,3,5-C(6)H(3)[p-C(6)H(4)N(PF(2))(2)](3) (2). The derivatization of chlorohexaphosphane with an aryloxy substituent and its palladium(II) and platinum(II) complexes are also described.
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Affiliation(s)
- Sowmya Rao
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400 076, India
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Aydemir M, Baysal A, Özkar S, Yıldırım LT. Ruthenium complexes of aminophosphine ligands and their use as pre-catalysts in the transfer hydrogenation of aromatic ketones: X-ray crystal structure of thiophene-2-(N-diphenylthiophosphino)methylamine. Polyhedron 2011. [DOI: 10.1016/j.poly.2010.12.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Balakrishna MS, Naik S, Mobin S. Short-bite aminobis(phosphonite) containing olefinic functionalities, PhN{P(OC6H3(OMe-o)(C3H5-p))2}2: Synthesis and transition metal complexes. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.03.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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