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Mixed thioalkyl-azoimine (SNN′)/α-diimine–ruthenium complexes: synthesis, characterization, DFT calculations, crystal structure and application as pre-catalysts for hydrogenation of acetophenone. TRANSIT METAL CHEM 2019. [DOI: 10.1007/s11243-018-00302-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dakkach M, Atlamsani A, Parella T, Fontrodona X, Romero I, Rodríguez M. New Aqua N-Heterocyclic Carbene Ru(II) Complexes with Two-Electron Process as Selective Epoxidation Catalysts: An Evaluation of Geometrical and Electronic Effects. Inorg Chem 2013; 52:5077-87. [DOI: 10.1021/ic302863h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mohamed Dakkach
- Departament de Química i Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, E-17071
Girona, Spain
- Laboratoire
des Matériaux et Systèmes Interfaciaux, Département
de Chimie, Faculté des Sciences,
B.P. 2121, 93000 Tétouan, Morocco
| | - Ahmed Atlamsani
- Laboratoire
des Matériaux et Systèmes Interfaciaux, Département
de Chimie, Faculté des Sciences,
B.P. 2121, 93000 Tétouan, Morocco
| | - Teodor Parella
- Departament de Química i Servei de RMN, Universitat Autònoma de Barcelona, Cerdanyola
del Vallès, E-08193 Barcelona, Spain
| | - Xavier Fontrodona
- Departament de Química i Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, E-17071
Girona, Spain
| | - Isabel Romero
- Departament de Química i Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, E-17071
Girona, Spain
| | - Montserrat Rodríguez
- Departament de Química i Serveis Tècnics de Recerca, Universitat de Girona, Campus de Montilivi, E-17071
Girona, Spain
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cis–trans Isomerism in mixed-ligand ruthenium(II) complexes containing bis(phosphine) and azoimine ligands. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.04.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Saker O, Mahon MF, Warren JE, Whittlesey MK. Sequential Formation of [Ru(IPr)2(CO)H(OH2)]+ and [Ru(IPr)(η6-C6H6)(CO)H]+ upon Protonation of Ru(IPr)2(CO)H(OH) (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene). Organometallics 2009. [DOI: 10.1021/om801150v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Olly Saker
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - John E. Warren
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - Michael K. Whittlesey
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K., and SRS Station 9.8 SMX, CCLRC Daresbury Laboratory, Warrington WA4 4AD, U.K
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Al-Noaimi M, El-Barghouthi MI, El-khateeb M, Abdel-Rahman OS, Görls H, Crutchley RJ. Synthesis and characterization of ruthenium(II) azoimine-diphosphine mixed-ligand complexes. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.05.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Becker E, Pavlik S, Kirchner K. The Organometallic Chemistry of Group 8 Tris(pyrazolyl)borate Complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(07)56003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Hijazi A, Djukic JP, Allouche L, de Cian A, Pfeffer M, Le Goff XF, Ricard L. Stereoselective Cyclometalation of Planar Pro-chiral (η6-Arene)tricarbonylchromium Complexes with OC-6-[Ru(CO)2Cl2]n. Organometallics 2007. [DOI: 10.1021/om070239p] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mola J, Rodríguez M, Romero I, Llobet A, Parella T, Poater A, Duran M, Solà M, Benet-Buchholz J. New Ru Complexes Containing the N-Tridentate bpea and Phosphine Ligands: Consequences of Meridional vs Facial Geometry. Inorg Chem 2006; 45:10520-9. [PMID: 17173407 DOI: 10.1021/ic061126l] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and isolation of the complex cis,fac-[RuIICl2(bpea)(PPh3)][3; bpea = N,N-bis(2-pyridylmethyl)ethylamine] and three geometrical isomers of the complex [RuIICl(bpea)(dppe)](BF4) [4; dppe = (1,2-diphenylphosphino)ethane], trans,fac (4a), cis,fac (4b), and mer(down) (4c), have been described (see Chart 1 for a drawing of their structures). These complexes have been characterized through analytical, spectroscopic (IR, UV/vis, and 1D and 2D NMR), and electrochemical (cyclic voltammetry) techniques. In addition, complexes 3, 4a, and 4b have been further characterized in the solid state through monocrystal X-ray diffraction analysis. The molecular and electronic structures of isomers 4a, 4b, 4c, and 4d (the mer(up) isomer) have also been studied by means of density functional theory (DFT) calculations. Furthermore, their low-energy electronic transitions have been simulated using time-dependent DFT approaches, which have allowed unraveling of their metal-to-ligand charge-transfer nature. Complexes 3 and 4a-c are capable of catalyzing H-transfer types of reactions between alcohols and aromatic ketones such as acetophenone and 2,2-dimethylpropiophenone (DP). A strong influence of the facial versus meridional geometry in the bpea ligand coordination mode is observed for these catalytic reactions, with the meridional isomer being much more active than the facial one. The meridional isomer is even capable of carrying out the H-transfer reaction of bulky substrates such as DP at room temperature.
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Affiliation(s)
- Joaquim Mola
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
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Man ML, Zhu J, Ng SM, Zhou Z, Yin C, Lin Z, Lau CP. Reactions of Hydrotris(pyrazolyl)borate (Tp)-Supported Ruthenium Dihydrogen Complexes [TpRu(L2)(H2)]+ (L2 = dppm, dppp, (PPh3)2) with O2. Organometallics 2004. [DOI: 10.1021/om049403o] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Man Lok Man
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jun Zhu
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Siu Man Ng
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhongyuan Zhou
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Chuanqi Yin
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zhenyang Lin
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Chak Po Lau
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Müller R, Hübner E, Burzlaff N. Ruthenium(II) Complexes Bearing Carboxylato and 2-Oxocarboxylato Ligands. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200300816] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Takahashi Y, Hikichi S, Moro-oka Y, Akita M. Oxygenation of a series of cationic aquoruthenium complexes, TpiPr2Ru(OH2)nL3–n·CF3SO3·(THF)x, leading to mono- and dinuclear aquo-hydroxo complexes supported by unique hydrogen bonding networks. Polyhedron 2004. [DOI: 10.1016/j.poly.2003.11.009] [Citation(s) in RCA: 7] [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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Kitano T, Sohrin Y, Hata Y, Wada H, Hori T, Ueda K. Improved Selectivity for Cu(II) of Methyl-Substituted Poly(pyrazolyl)borates, [HB(3-Mepz)3]−and [B(3-Mepz)4]−, through Steric Contact. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.1365] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Miyaji T, Kujime M, Hikichi S, Moro-oka Y, Akita M. Synthesis and characterization of a series of (hydroperoxo)-, (alkylperoxo)-, and (mu-peroxo)palladium complexes containing the hydrotris(3,5-diisopropylpyrazolyl)borato ligand (Tp(iPr2)): (Tp(iPr2))(py)Pd-OO-X [X = H, t-Bu, Pd(Tp(iPr2))(py)] and (Tp(iPr2))(py)Pd-(mu-kappa(1):kappa(2)-OO)-PdTp(iPr2). Inorg Chem 2002; 41:5286-95. [PMID: 12354063 DOI: 10.1021/ic020355e] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Dehydrative condensation of the hydroxopalladium complex (Tp(iPr2))(py)Pd-OH (1) with hydroperoxides (XOOH: X = H, t-Bu) produces the corresponding (hydroperoxo)-, (Tp(iPr2))(py)Pd-OOH (2a), and (tert-butylperoxo)palladium complexes, (Tp(iPr2))(py)Pd-OOBu(t) (3). Treatment of 2a with PPh(3) results in concomitant ligand displacement giving (Tp(i)(Pr2))(Ph(3)P)Pd-OOH (2b) and oxygenation of PPh(3) giving O=PPh(3). Further condensation between 1 and 2a gives the mu-kappa(1):kappa(1)-peroxo complex (Tp(iPr2))(py)Pd-OO-Pd(Tp(iPr2))(py) (4), while condensation between the bis(mu-hydroxo)dipalladium complex (PdTp(iPr2))(2)(mu-OH)(2) (7) with 2a affords the unsymmetrical mu-kappa(1):kappa(2)-peroxo complex (Tp(iPr2))(py)Pd-OO-PdTp(iPr2) (5). These peroxopalladium complexes 2-5 have been fully characterized by a combination of spectroscopic and crystallographic analyses, which lead to description of the O-O moieties in these complexes as peroxide (O(2)(2-)) with sp(3)-hybridized oxygen atoms. The OOH moiety in 2b is found to interact with the noncoordinated nitrogen atom of the pendant pyrazolyl group through hydrogen bond. The O(2) moieties in 2-5 turn out to be so nucleophilic (basic) as to add across carbon-heteroatom multiple bonds in acetonitrile and acetaldehyde to give the peroxometallacycle Tp(iPr2)Pd[OOC(Me)=N)]Pd(iPr2)(py)(8) (from 2, 4, and 5) and the acetato complex (Tp(iPr2))(py)Pd-OC(=O)CH(3) (9) (from 2-4), respectively. Methyl vinyl ether and styrene, CH(2)=CHY (Y = OMe, Ph), are converted to the corresponding methyl ketones, CH(3)C(=O)Y, upon treatment with 2-4.
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Affiliation(s)
- Taichi Miyaji
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Akita M, Hikichi S. Inorganic Chemistry Based on Tp Ligands —From Dioxygen Complexes to Organometallic Systems—. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2002. [DOI: 10.1246/bcsj.75.1657] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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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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