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Synthesis, reactivity and crystal structures of various solvates of fac-tris(trimethylphosphine)trichloroiridium. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.02.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2
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Engberts JBFN, Feringa BL, Keller E, Otto S. Lewis-acid catalysis of carbon carbon bond forming reactions in water. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19961151103] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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3
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Renfrew AK, Egger AE, Scopelliti R, Hartinger CG, Dyson PJ. Synthesis and characterisation of the water soluble bis-phosphine complex [Ru(η6-cymene)(PPh2(o-C6H4O)-κ2-P,O)(pta)]+ and an investigation of its cytotoxic effects. CR CHIM 2010. [DOI: 10.1016/j.crci.2010.03.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rominger RL, See RF, Lake CH, Churchill MR, Atwood JD. IRIDIUM COMPLEXES OF AMPHOS (AMPHOS = [PPh2CH2CH2NMe3 +]I−): CRYSTAL AND MOLECULAR STRUCTURES OF trans-Ir(CO)(CI)(PPh2CH2CH2NMe2)2 AND [trans-Ir(CO)(Cl)(PPh2CH2CH2NMe3)2 2+][I−]2·2DMSO. J COORD CHEM 2006. [DOI: 10.1080/00958979808053728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Robert L. Rominger
- a Department of Chemistry , University at Buffalo, State University of New York , Buffalo, NY, 14260-3000
| | - Ronald F. See
- a Department of Chemistry , University at Buffalo, State University of New York , Buffalo, NY, 14260-3000
| | - Charles H. Lake
- a Department of Chemistry , University at Buffalo, State University of New York , Buffalo, NY, 14260-3000
| | - Melvyn Rowen Churchill
- a Department of Chemistry , University at Buffalo, State University of New York , Buffalo, NY, 14260-3000
| | - Jim D. Atwood
- a Department of Chemistry , University at Buffalo, State University of New York , Buffalo, NY, 14260-3000
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Helfer DS, Atwood JD. Platinum-Catalyzed Wacker Oxidation of Alkenes Utilizing cis-Pt(Cl)2(TPPTS)2 (TPPTS = P(m-C6H4SO3Na)3). Organometallics 2004. [DOI: 10.1021/om030500b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Derrik S. Helfer
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260
| | - Jim D. Atwood
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260
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Salignac B, Grundler PV, Cayemittes S, Frey U, Scopelliti R, Merbach AE, Hedinger R, Hegetschweiler K, Alberto R, Prinz U, Raabe G, Kölle U, Hall S. Reactivity of the organometallic fac-[(CO)3ReI(H2O)3]+ aquaion. Kinetic and thermodynamic properties of H2O substitution. Inorg Chem 2003; 42:3516-26. [PMID: 12767188 DOI: 10.1021/ic0341744] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The water exchange process on [(CO)(3)Re(H(2)O)(3)](+) (1) was kinetically investigated by (17)O NMR. The acidity dependence of the observed rate constant k(obs) was analyzed with a two pathways model in which k(ex) (k(ex)(298) = (6.3 +/- 0.1) x 10(-3) s(-1)) and k(OH) (k(OH)(298)= 27 +/- 1 s(-1)) denote the water exchange rate constants on 1 and on the monohydroxo species [(CO)(3)Re(I)(H(2)O)(2)(OH)], respectively. The kinetic contribution of the basic form was proved to be significant only at [H(+)] < 3 x 10(-3) M. Above this limiting [H(+)] concentration, kinetic investigations can be unambiguously conducted on the triaqua cation (1). The variable temperature study has led to the determination of the activation parameters Delta H(++)(ex) = 90 +/- 3 kJ mol(-1), Delta S(++)(ex) = +14 +/- 10 J K(-1) mol(-1), the latter being indicative of a dissociative activation mode for the water exchange process. To support this assumption, water substitution reaction on 1 has been followed by (17)O/(1)H/(13)C/(19)F NMR with ligands of various nucleophilicities (TFA, Br(-), CH(3)CN, Hbipy(+), Hphen(+), DMS, TU). With unidentate ligands, except Br(-), the mono-, bi-, and tricomplexes were formed by water substitution. With bidentate ligands, bipy and phen, the chelate complexes [(CO)(3)Re(H(2)O)(bipy)]CF(3)SO(3) (2) and [(CO)(3)Re(H(2)O)(phen)](NO(3))(0.5)(CF(3)SO(3))(0.5).H(2)O (3) were isolated and X-ray characterized. For each ligand, the calculated interchange rate constants k'(i) (2.9 x 10(-3) (TFA) < k'(I) < 41.5 x 10(-3) (TU) s(-1)) were found in the same order as the water exchange rate constant k(ex), the S-donor ligands being slightly more reactive. This result is indicative of I(d) mechanism for water exchange and complex formation, since larger variations of k'(i) are expected for an associatively activated mechanism.
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Affiliation(s)
- Bernadette Salignac
- Ecole Polytechnique Fédérale de Lausanne, Institut de Chimie Moléculaire et Biologique, BCH, CH-1015 Lausanne, Switzerland
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Hargreaves MD, Mahon MF, Whittlesey MK. Substitution reactions of [Ru(dppe)(CO)(H(2)O)(3)][OTf](2). Inorg Chem 2002; 41:3137-45. [PMID: 12054992 DOI: 10.1021/ic020029z] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The labile nature of the coordinated water ligands in the organometallic aqua complex [Ru(dppe)(CO)(H(2)O)(3)][OTf](2) (1) (dppe = Ph(2)PCH(2)CH(2)PPh(2); OTf = OSO(2)CF(3)) has been investigated through substitution reactions with a range of incoming ligands. Dissolution of 1 in acetonitrile or dimethyl sulfoxide results in the facile displacement of all three waters to give [Ru(dppe)(CO)(CH(3)CN)(3)][OTf](2) (2) and [Ru(dppe)(CO)(DMSO)(3)][OTf](2) (3), respectively. Similarly, 1 reacts with Me(3)CNC to afford [Ru(dppe)(CO)(CNCMe(3))(3)][OTf](2) (4). Addition of 1 equiv of 2,2'-bipyridyl (bpy) or 4,4'-dimethyl-2,2'-bipyridyl (Me(2)bpy) to acetone/water solutions of 1 initially yields [Ru(dppe)(CO)(H(2)O)(bpy)][OTf](2) (5a) and [Ru(dppe)(CO)(H(2)O)(Me(2)bpy)][OTf](2) (6a), in which the coordinated water lies trans to CO. Compounds 5a and 6a rapidly rearrange to isomeric species (5b, 6b) in which the ligated water is trans to dppe. Further reactivity has been demonstrated for 6b, which, upon dissolution in CDCl(3), loses water and coordinates a triflate anion to afford [Ru(dppe)(CO)(OTf)(Me(2)bpy)][OTf] (7). Reaction of 1 with CH(3)CH(2)CH(2)SH gives the dinuclear bridging thiolate complex [[(dppe)Ru(CO)](2)(mu-SCH(2)CH(2)CH(3))(3)][OTf] (8). The reaction of 1 with CO in acetone/water is slow and yields the cationic hydride complex [Ru(dppe)(CO)(3)H][OTf] (9) via a water gas shift reaction. Moreover, the same mechanism can also be used to account for the previously reported synthesis of 1 upon reaction of Ru(dppe)(CO)(2)(OTf)(2) with water (Organometallics 1999, 18, 4068).
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Use of surfactants in water-soluble ruthenium(II) complex-catalyzed asymmetric hydrogen-transfer reduction of aromatic ketones. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(01)02132-3] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Bowden AA, Kubeika JL, Atwood JD. Preparation and Reactions of Methyl Iridium Complexes in Water. ACTA ACUST UNITED AC 2002. [DOI: 10.1080/10286620290034737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Castiñeiras A, Gómez M, Sevillano P. 2-(2,3-Dihydro-1,3-benzothiazol-2-yl)phenyl(diphenyl) phosphine oxide. Synthesis and characterization by IR and NMR spectroscopy and X-ray diffractometry. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00680-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Synthesis and properties of a novel family of fluorous triphenylphosphine derivatives. J Org Chem 2000; 65:3885-93. [PMID: 10866604 DOI: 10.1021/jo991548v] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel approach to the preparation of perfluorotail-functionalized triarylphosphines using a p-silyl substituent as the branching point has been developed. This approach enabled the attachment of between three and nine perfluorotails per phosphorus atom, resulting in the production of highly fluorous tris[p-(1H,1H,2H, 2H-perfluoroalkylsilyl)aryl]phosphines, P[C(6)H(4)-p-SiMe(3)(-)(n)()(CH(2)CH(2)C(x)()F(2)(x)()(+1))(n)()](3) (n = 1, 2, 3; x = 6, 8), containing between 50 and 67 wt % fluorine. (31)P NMR studies indicate that the phosphorus atoms, and consequently the sigma-donor and pi-acceptor properties of these phosphines, are not influenced by the electron-withdrawing perfluoroalkyltails. The fluorous triarylphosphines are readily soluble in fluorous solvents and display fluorous phase preference in several fluorous biphasic systems. The phase partitioning of these fluorous ligands, as well as their donor properties, is discussed in relation to their potential for fluorous biphasic catalyst separation.
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Pentamethylcyclopentadienylrhodium(I) complexes incorporated into porous polysiloxanes prepared by a sol-gel process: catalysts for hydrogenation of crotonic acid in water. Appl Organomet Chem 2000. [DOI: 10.1002/(sici)1099-0739(200003)14:3<164::aid-aoc981>3.0.co;2-a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Shen J, Roundhill DM. Synthesis and Characterization of Sulfonated and Poly(Ethylene Glycol)-Calix[4]Arene Tertiary Phosphines. PHOSPHORUS SULFUR 2000. [DOI: 10.1080/10426500008076323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Addition of water and ammonia to the carbon–carbon double bond of acyclic alkenes and strained bicyclic dienes; a computational study. Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00122-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Paterniti DP, Francisco LW, Atwood JD. Synthesis of Cationic Iridium(I) Complexes of Water-Soluble Phosphine Ligands, [Ir(CO)(TPPMS)3]CF3SO3, [Ir(CO)(H2O)(TPPTS)2]CF3SO3, and [Ir(CO)2(TPPMS)3]ClO4 (TPPMS = PPh2(m-C6H4SO3K), TPPTS = P(m-C6H4SO3Na)3). Organometallics 1998. [DOI: 10.1021/om9806139] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David P. Paterniti
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
| | - Laura W. Francisco
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
| | - Jim D. Atwood
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
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Drießen-Hölscher B, Heinen J. Selective two-phase-hydrogenation of sorbic acid with novel water soluble ruthenium complexes. J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(98)00874-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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A water-soluble rhodium complex as a catalyst precursor for the hydroformylation of olefins. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1381-1169(97)00293-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Roman PJ, Atwood JD. Carbonylation of trans-Ir(CO)Cl(TPPTS)2 and Reactivity of [Ir(CO)2(TPPTS)3]Cl (TPPTS = P(m-C6H4SO3Na)3) in DMSO and Water. Organometallics 1997. [DOI: 10.1021/om970351v] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul J. Roman
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
| | - Jim D. Atwood
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000
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Egli A, Hegetschweiler K, Alberto R, Abram U, Schibli R, Hedinger R, Gramlich V, Kissner R, Schubiger PA. Hydrolysis of the Organometallic Aqua Ionfac-Triaquatricarbonylrhenium(I). Mechanism, pKa, and Formation Constants of the Polynuclear Hydrolysis Products. Organometallics 1997. [DOI: 10.1021/om960894p] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Paetzold E, Michalik M, Oehme G. Synthesis of a New Type of Water-Soluble Phosphines by addition of hydrophilic thiols to vinylphosphines. Preparation of the rhodium and palladium complexes. ACTA ACUST UNITED AC 1997. [DOI: 10.1002/prac.19973390106] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Wakabayashi T, Ishii Y, Ishikawa K, Hidai M. Ein neuer Katalysator mit einem würfelförmigen PdMo3S4-Cluster für die Cyclisierung von Alkincarbonsäuren zu Enol-Lactonen. Angew Chem Int Ed Engl 1996. [DOI: 10.1002/ange.19961081824] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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