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Naktode K, Bhattacharjee J, Das Gupta S, Pada Nayek H, Mallik BS, Panda TK. Unprecedented Calcium Metalla-macrocycle Having Phosphinoselenoic Amide and Diphenylphosphinate in the Coordination Sphere. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300492] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Vaquero M, Vargas S, Suárez A, Garcı́a-Garrido SE, Álvarez E, Mancera M, Pizzano A. Synthesis, Characterization, and Reactivity of Ruthenium Bis-Allyl Complexes with Chiral Phosphine-Phosphite Ligands. Organometallics 2012. [DOI: 10.1021/om300018s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mónica Vaquero
- Instituto de Investigaciones Quı́micas
(IIQ), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Avda Américo Vespucio
No. 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - Sergio Vargas
- Instituto de Investigaciones Quı́micas
(IIQ), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Avda Américo Vespucio
No. 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - Andrés Suárez
- Instituto de Investigaciones Quı́micas
(IIQ), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Avda Américo Vespucio
No. 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - Sergio E. Garcı́a-Garrido
- Departamento
de Quı́mica Orgánica e Inorgánica, Instituto de Quı́mica Organometálica “Enrique
Moles” (Unidad Asociada al CSIC), Universidad de Oviedo, 33006 Oviedo, Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Quı́micas
(IIQ), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Avda Américo Vespucio
No. 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - Manuel Mancera
- Departamento de
Quı́mica Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Antonio Pizzano
- Instituto de Investigaciones Quı́micas
(IIQ), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Avda Américo Vespucio
No. 49, Isla de la Cartuja, 41092 Sevilla, Spain
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Chen J, Sung HHY, Williams ID, Jia G. Hydrolysis of Osmium and Ruthenium Carbyne Complexes. Organometallics 2011. [DOI: 10.1021/om200685v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jiangxi Chen
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Herman Ho-Yung Sung
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Ian Duncan Williams
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong
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Meinholz MM, Klemmer M, Kriemen E, Stalke D. Novel Multidentate Sulfur-Nitrogen Ligands with Enhanced Complexation Properties. Chemistry 2011; 17:9415-22. [DOI: 10.1002/chem.201100614] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Indexed: 11/12/2022]
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Stepanova VA, Dunina VV, Smoliakova IP. Reactions of Cyclopalladated Complexes with Lithium Diphenylphosphide. Organometallics 2009. [DOI: 10.1021/om9005615] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Valeria A. Stepanova
- Chemistry Department, University of North Dakota, 151 Cornell Street, Stop 9024, Grand Forks, North Dakota 58202-9024
| | - Valery V. Dunina
- Chemistry Department, M.V. Lomonosov Moscow State University, 1 Leninskie Gory, 119991 Moscow, Russian Federation
| | - Irina P. Smoliakova
- Chemistry Department, University of North Dakota, 151 Cornell Street, Stop 9024, Grand Forks, North Dakota 58202-9024
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Field LD, Messerle BA, Vuong KQ, Turner P. Rhodium(I) and iridium(I) complexes containing bidentate phosphine-imidazolyl donor ligands as catalysts for the hydroamination and hydrothiolation of alkynes. Dalton Trans 2009:3599-614. [DOI: 10.1039/b821188d] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Objartel I, Ott H, Stalke D. Low-Temperature NMR and Crystal Structure Analyses of a Hemilabile Tin Complex. Z Anorg Allg Chem 2008. [DOI: 10.1002/zaac.200800294] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kling C, Ott H, Schwab G, Stalke D. Heteroaromatic Substituted Phosphoranes with Enhanced Hemilabile Character. Organometallics 2008. [DOI: 10.1021/om800307d] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christian Kling
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Holger Ott
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Gerald Schwab
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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Jalil MA, Hui EB. A general and efficient method for the preparation of unsymmetrical bidentate P,N and P,S ligands. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.12.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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MacKay JA, Vedejs E. Synthesis and Reactivity of New Chiral Bicyclic Phospholanes as Acyl-Transfer Catalysts. J Org Chem 2005; 71:498-503. [PMID: 16408956 DOI: 10.1021/jo0519155] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[structure: see text] Synthesis of chiral phosphines 1a, 14a, and 18a as nucleophilic catalysts for anhydride activation and kinetic resolution of alcohols is described. Radical cyclization of alkenylphosphines produced the phosphabicyclooctane (PBO) core of catalysts 1a and 14a, while 18a was made by quenching a metallocycle precursor with dichlorophenylphosphine. Catalysts 1a and 14a are less reactive, while 18a is comparable to the most reactive catalysts in the PBO family. The preferred ground-state geometries of phosphine-boranes were identified using computational methods, and were correlated with the catalytic reactivity of the corresponding free phosphines.
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Affiliation(s)
- James A MacKay
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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Leone A, Consiglio G. NovelCs-Symmetric 1,4-Diphosphine Ligands in the Copolymerization of Propene and Carbon Monoxide: High Regio- and Stereocontrol in the Catalytic Performance. Helv Chim Acta 2005. [DOI: 10.1002/hlca.200590002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Baratta W, Mealli C, Herdtweck E, Ienco A, Mason SA, Rigo P. Nonclassical vs Classical Metal···H3C−C Interactions: Accurate Characterization of a 14-Electron Ruthenium(II) System by Neutron Diffraction, Database Analysis, Solution Dynamics, and DFT Studies. J Am Chem Soc 2004; 126:5549-62. [PMID: 15113226 DOI: 10.1021/ja038986a] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A neutron diffraction study of the complex RuCl(2)[PPh(2)(2,6-Me(2)C(6)H(3))](2) (1) defines the precise nature of the delta agostic interactions between the unsaturated metal center and two o-methyl groups of the xylyl substituents. The CH(3) carbon atoms lie in the RuP(2) equatorial plane with Ru...C distances of 2.637(7) and 2.668(6) A, whereas four short Ru.H distances (from 2.113(11) to 2.507(11) A) indicate that each methyl group interacts with two C-H bonds. A survey of the X-ray structures with beta, gamma, delta, and epsilon M...H(3)C-C moieties (no neutron data have been previously reported) shows a linear correlation between the angle M.C-C and the torsion of the methyl group about the C-C bond. Thus, the agostic interactions span the range between the classical (M...eta(2)-HC) and the nonclassical (M...eta(3)-H(2)C) types. A solution study of 1 shows intramolecular rearrangement of each xylyl substituent that equilibrates the environments of its two ortho CH(3) groups. Activation parameters, evaluated from the analysis of (1)H NMR line shape as a function of temperature, are Delta H(++) = 9.6 +/- 0.2 kcal mol(-1) with Delta S(++) = -15.4 +/- 0.7 eu (CDCl(3)). The related 14-electron complexes RuX(2)[PPh(2)(2,6-Me(2)C(6)H(3))](2) (X = I, 2; NCO, 3), prepared from 1 and NaX, show a similar dynamic process in solution, with the iodo derivative displaying the most hindered rotation of the xylyl group. A DFT optimization of the complex RuCl(2)[PH(2)(2,6-Me(2)C(6)H(3))](2) (1a) reproduces well the nonclassical Ru...eta(3)-H(2)C agostic mode, whereas the classical Ru...eta(2)-HC one corresponds to a transition state 1b, destabilized by 3.4 kcal mol(-1). A similar barrier (ca. 3.8 kcal mol(-1)) is calculated for the xylyl rotation in the further simplified model RuCl(2)[PH(2)(2,6-Me(2)C(6)H(3))][PH(2)CH[double bond]CHCH(3)] (1c), the absence of bulky phenyl substituents being largely responsible for the difference with respect to the experimental value. Finally, the MO analysis addresses the intrinsic stability of the 14-electron complex RuCl(2)(PH(3))(2) and, in agostic complexes, accounts for the different interactions between the methyl group and the metal atom in relation to the length of their interconnecting chain.
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Affiliation(s)
- Walter Baratta
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Udine, Via Cotonificio 108, I-33100 Udine, Italy.
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Appleby T, Aucott SM, Clarke ML, Slawin AM, Derek Woollins J. Preparation and coordination chemistry of Ph2P(CH2)nNHPiPr2 (n=2, 3). Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)01236-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Baier F, Fei Z, Gornitzka H, Murso A, Neufeld S, Pfeiffer M, Rüdenauer I, Steiner A, Stey T, Stalke D. Phosphane- and phosphorane Janus Head ligands in metal coordination. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01818-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Nelson JH, Ghebreyessus KY, Cook VC, Edwards AJ, Wielandt W, Wild SB, Willis AC. Synthesis and Characterization of [(η6-arene)RuCl2(R2AsCHCH2)] and Tethered Arsinopropylarene−Ruthenium(II) Complexes. Organometallics 2002. [DOI: 10.1021/om011092j] [Citation(s) in RCA: 17] [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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One-pot synthesis of a novel C1-symmetric diphosphine from 1,3-cyclic sulfate. Asymmetric hydroformylation of styrene. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0957-4166(01)00498-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Fries G, Ilg K, Pfeiffer M, Stalke D, Werner H. Six-Coordinate Ruthenium(II) Complexes Containing Unsymmetrical 1,2-Bis(phosphanyl)ethanes and 1-Arsanyl-2-phosphanylethanes as Ligands. Eur J Inorg Chem 2000. [DOI: 10.1002/1099-0682(200012)2000:12<2597::aid-ejic2597>3.0.co;2-f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Werner H, Fries G, Weberndörfer B. A series of mononuclear ruthenium(II) complexes with sterically demanding bis(phosphino)methanes and arsino(phosphino)methanes as ligands. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(00)00339-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Fries G, Weberndörfer B, Ilg K, Werner H. Mononuclear Ruthenium and Hetero-Tetranuclear Ruthenium-Silver Complexes Containing the Unsymmetrical Bidentate Ligands R2P(CH2)nER′2 (n = 1, 2; E = P, As) as Chelating or Bridging Units. Eur J Inorg Chem 2000. [DOI: 10.1002/1099-0682(200007)2000:7<1651::aid-ejic1651>3.0.co;2-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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