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Tarifa L, Geer AM, Asensio L, López JA, Ciriano MA, Tejel C. Redox-Transmetalation Reactions: Easy Access to Homo- and Heterodimetallic d 8,d 10 Complexes. Inorg Chem 2023; 62:19421-19432. [PMID: 37988130 DOI: 10.1021/acs.inorgchem.3c02200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
The ability of the imine PyCH═N-CH2Py (Py = 2-pyridyl, bpi) to behave as a heteroditopic ligand, which is suitable for creating two separate compartments to host metals in different oxidation states, has been developed by studying the reactions of the mixed-valence complexes [(cod)M-Ι(μ-bpi)MΙ(cod)] (M = Rh, Ir) with [M'(Cl)2(PPh3)2] (M' = Pd, Ni). The results depend on the molar ratio of the reagents used (1:1 or 1:2) to give the heterometallic complexes {d10-M',d8-M}-[(PPh3)(Cl)M'0(μ-bpi)MΙ(cod)] (Pd,Rh, 4; Pd,Ir, 5; Ni,Rh, 8; Ni,Ir, 9) and the two-electron mixed-valent compounds [(PPh3)(Cl)M'0(μ-bpi)M'ΙΙ(Cl)] (M' = Ni, 10; Pd, 11), respectively. A redox process occurs in the replacement of the low-valent [(cod)M-I] fragment, whereas the exchange of the [(cod)MI] fragment is redox-neutral. The metal with a d8 configuration in the products exhibits a square-planar geometry coordinated to two (Rh/Ir) or three (Ni/Pd) nitrogen atoms of the bridging bpi ligand. Conversely, the metal with a d10 configuration adopts trigonal-planar geometries, π-bonded to the imine C═N bond. The isolated complexes 4/5 and 10/11, along with the hypothetical heterometallic Pd,Ni compound (12), were studied by DFT methods. Additionally, the T-shaped moiety 'M'ΙΙ(PPh3)(Cl)(η1-CH-N(bpi))', stabilized by a secondary γ-agostic interaction, and the 'M'II(Cl)(κ3N-bpi)' fragment was found to be accessible redoxomers of complexes 10 and 11 by DFT calculations.
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Affiliation(s)
- Luis Tarifa
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ana M Geer
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Laura Asensio
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - José A López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Miguel A Ciriano
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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2
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Construction of a low-valent thiolate-bridged dicobalt platform and its reactivity toward hydrogen activation and evolution. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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A Rh(I) complex with an annulated N-heterocyclic carbene ligand for E-selective alkyne hydrosilylation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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San Nacianceno V, Azpeitia S, Ibarlucea L, Mendicute-Fierro C, Rodríguez-Diéguez A, Seco JM, San Sebastian E, Garralda MA. Stereoselective formation and catalytic activity of hydrido(acylphosphane)(chlorido)(pyrazole)rhodium(iii) complexes. Experimental and DFT studies. Dalton Trans 2015; 44:13141-55. [DOI: 10.1039/c5dt01705j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stereoselectivity assisted by hydrogen bond formation, inhibited by steric hindrance, predicted by DFT calculations.
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Affiliation(s)
- Virginia San Nacianceno
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | - Susan Azpeitia
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | - Lourdes Ibarlucea
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | - Claudio Mendicute-Fierro
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | | | - José M. Seco
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | - Eider San Sebastian
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
| | - María A. Garralda
- Facultad de Química de San Sebastián
- Universidad del País Vasco (UPV/EHU)
- 20080 San Sebastián
- Spain
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5
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Serrano AL, Casado MA, López JA, Tejel C. Rhodium and iridium complexes with a new scorpionate phosphane ligand. Inorg Chem 2013; 52:7593-607. [PMID: 23763522 DOI: 10.1021/ic400684s] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A straightforward synthesis of a new hybrid scorpionate ligand [(allyl)2B(CH2PPh2)(Pz)](-) ([A2BPN](-)) is reported. Coordination to rhodium resulted in square-planar complexes [Rh(κ(2)-A2BPN)(L)(L')] [L = L' = (1)/2cod (1,5-cyclooctadiene), CN(t)Bu, CO (6); L = CO, L' = NH3, pyridine, PPh3, PMe3] for which spectroscopic data and the molecular structure of [Rh(κ(2)-A2BPN)(CO)PPh3] (11) indicate the ligand to be κN,κP-bound to rhodium with two dangling free allyl groups. Studies in solution point out that the six-membered Rh-N-N-B-C- P metallacycle undergoes a fast inversion in all of them. The bis(carbonyl) complex 6 easily loses a CO group to give [{Rh(A2BPN)(CO)}2], a dinuclear compound in which two mononuclear subunits are brought together by two bridging allyl groups. Coordination to iridium is dominated by a tripodal κN,κP,η(2)-C═C binding mode in the TBPY-5 complexes [Ir(κ(3)-A2BPN)(L)(L')] [L = L' = (1)/2cod (3), CN(t)Bu (5), CO (7); L = CO, L' = PPh3 (13), PMe3 (14), H2C═CH2, (17), MeO2CC≡CCO2Me (dmad, 18)], as confirmed by the single-crystal structure determination of complexes 3 and 18. A fast exchange between the two allyl arms is observed for complexes having L = L' (3, 5, and 7), while those having CO and L ligands (14, 17, and 18) were found to be nonfluxional species. An exception is complex 13, which establishes an equilibrium with the SP-4 configuration. Protonation reactions on complexes 13 and 14 with HCl yielded the hydride complex [Ir(κ(2)-A2BPN)(CO)(Cl)(H)PPh3] (15) and the C-alkyl compound [ Ir{κ(3)-(allyl)B(CH2 CHCH3)(CH2PPh2)(Pz)}(Cl)(CO)PMe3] (16), respectively. The bis(isocyanide) complex 5 reacts with dmad to form [Ir(κ(2)-A2BPN)(CN(t)Bu)2(dmad)]. On the whole, the electronic density provided to the metal by the [A2BPN](-) ligand is very sensitive to the coordination mode. The basicity of the new ligand is similar to that of the Tp(Me2) ligand in the κN,κP mode but comparable to Tp if coordinated in the κN,κP,η(2)-C═C mode.
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Affiliation(s)
- Angel L Serrano
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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6
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Chandrasekhar V, Mahanti B, Bandipalli P, Bhanuprakash K. Cyclometalated Iridium(III) Complexes Containing Hydroxide/Chloride Ligands: Isolation of Heterobridged Dinuclear Iridium(III) Compounds Containing μ-OH and μ-Pyrazole Ligands. Inorg Chem 2012; 51:10536-47. [DOI: 10.1021/ic300694m] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Bani Mahanti
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, India
| | - Priyanka Bandipalli
- Inorganic and Physical
Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 607, India
| | - Kotamarthi Bhanuprakash
- Inorganic and Physical
Chemistry Division, Indian Institute of Chemical Technology, Hyderabad 500 607, India
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7
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Tejel C, Geer AM, Jiménez S, López JA, Ciriano MA. Easy Access to Hydride Chemistry on a Tripodal P-Based Rhodium Scaffold. Organometallics 2012. [DOI: 10.1021/om201129j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cristina Tejel
- Instituto de Síntesis
Química y Catálisis
Homogénea (ISQCH), Departamento
de Química Inorgánica, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ana M. Geer
- Instituto de Síntesis
Química y Catálisis
Homogénea (ISQCH), Departamento
de Química Inorgánica, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Sonia Jiménez
- Instituto de Síntesis
Química y Catálisis
Homogénea (ISQCH), Departamento
de Química Inorgánica, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - José A. López
- Instituto de Síntesis
Química y Catálisis
Homogénea (ISQCH), Departamento
de Química Inorgánica, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Miguel A. Ciriano
- Instituto de Síntesis
Química y Catálisis
Homogénea (ISQCH), Departamento
de Química Inorgánica, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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8
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Muñoz-Castro A. Nature of the Excited State of Triangulo Silver N-Heterocyclic Carbenes. Insights from Relativistic DFT Calculations. J Phys Chem A 2011; 116:520-5. [DOI: 10.1021/jp2071277] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alvaro Muñoz-Castro
- Departamento de Ciencias Quimicas, Universidad Andres Bello, Republica 275, Santiago, Chile
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9
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Fernández-Hernández JM, Yang CH, Beltrán JI, Lemaur V, Polo F, Fröhlich R, Cornil J, De Cola L. Control of the mutual arrangement of cyclometalated ligands in cationic iridium(III) complexes. Synthesis, spectroscopy, and electroluminescence of the different isomers. J Am Chem Soc 2011; 133:10543-58. [PMID: 21598947 DOI: 10.1021/ja201691b] [Citation(s) in RCA: 163] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Synthetic control of the mutual arrangement of the cyclometalated ligands (C^N) in Ir(III) dimers, [Ir(C^N)(2)Cl](2), and cationic bis-cyclometalated Ir(III) complexes, [Ir(C^N)(2)(L^L)](+) (L^L = neutral ligand), is described for the first time. Using 1-benzyl-4-(2,4-difluorophenyl)-1H-1,2,3-triazole (HdfptrBz) as a cyclometalating ligand, two different Ir(III) dimers, [Ir(dfptrBz)(2)Cl](2), are synthesized depending on the reaction conditions. At 80 °C, the dimer with an unusual mutual cis-C,C and cis-N,N configuration of the C^N ligands is isolated. In contrast, at higher temperature (140 °C), the geometrical isomer with the common cis-C,C and trans-N,N arrangement of the C^N ligand is obtained. In both cases, an asymmetric bridge, formed by a chloro ligand and two adjacent nitrogens of the triazole ring of one of the cyclometalated ligands, is observed. The dimers are cleaved in coordinating solvents to give the solvento complexes [Ir(dfptrBz)(2)Cl(S)] (S = DMSO or acetonitrile), which maintain the C^N arrangement of the parent dimers. Controlling the C^N ligand arrangement in the dimers allows for the preparation of the first example of geometrical isomers of a cationic bis-cyclometalated Ir(III) complex. Thus, N,N-trans-[Ir(dfptrBz)(2)(dmbpy)](+) (dmbpy = 4,4'-dimethyl-2,2'-bipyridine), with cis-C,C and trans-N,N arrangement of the C^N ligands, as well as N,N-cis-[Ir(dfptrBz)(2)(dmbpy)](+), with cis-C,C and cis-N,N C^N ligand orientation, are synthesized and characterized. Interestingly, both isomers show significantly different photophysical and electroluminescent properties, depending on the mutual arrangement of the C^N ligands. Furthermore, quantum chemical calculations give insight into the observed photophysical experimental data.
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Affiliation(s)
- Jesús M Fernández-Hernández
- Physikalisches Institut, Mendelstrasse 7, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
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10
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Hydrido iridium(III) complexes of azoaromatic ligands. Isolation, structure and studies of their physicochemical properties. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Penner A, Braun T. Rhodium and Iridium Complexes with α‐Diketimine Ligands: Oxidative Addition of H
2
and O
2. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100135] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anna Penner
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Str. 2, 12489 Berlin, Germany, Fax: +49‐30‐2093‐6939
| | - Thomas Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Str. 2, 12489 Berlin, Germany, Fax: +49‐30‐2093‐6939
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12
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Zheng Y, Batsanov AS, Bryce MR. Unusual Dinuclear and Mononuclear Cyclometalated Iridium Complexes of 2,5-Diaryl-1,3,4-oxadiazole Derivatives. Inorg Chem 2011; 50:3354-62. [DOI: 10.1021/ic102153x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Yonghao Zheng
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Andrei S. Batsanov
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Martin R. Bryce
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
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13
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Wang KW, Chen JL, Cheng YM, Chung MW, Hsieh CC, Lee GH, Chou PT, Chen K, Chi Y. Mono- versus Dinuclear Pt(II) 6-(5-Trifluoromethyl-Pyrazol-3-yl)-2,2′-Bipyridine Complexes: Synthesis, Characterization, and Remarkable Difference in Luminescent Properties. Inorg Chem 2010; 49:1372-83. [DOI: 10.1021/ic9011313] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kang-Wei Wang
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Jing-Lin Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
- School of Material and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, 341000, China
| | - Yi-Ming Cheng
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Min-Wen Chung
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Cheng-Chih Hsieh
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Kellen Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Yun Chi
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
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14
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Peloso R, Pattacini R, Cazin CSJ, Braunstein P. Structure and Reactivity of New Iridium Complexes with Bis(Oxazoline)-Phosphonito Ligands. Inorg Chem 2009; 48:11415-24. [DOI: 10.1021/ic901579u] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Riccardo Peloso
- Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - Roberto Pattacini
- Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - Catherine S. J. Cazin
- Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, F-67070 Strasbourg Cedex, France
| | - Pierre Braunstein
- Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, F-67070 Strasbourg Cedex, France
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15
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Jiménez S, López JA, Ciriano MA, Tejel C, Martínez A, Sánchez-Delgado RA. Selective Hydrogenation of Cinnamaldehyde and Other α,β-Unsaturated Substrates Catalyzed by Rhodium and Ruthenium Complexes. Organometallics 2009. [DOI: 10.1021/om900223p] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sonia Jiménez
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
| | - José A. López
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
| | - Miguel A. Ciriano
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
| | - Cristina Tejel
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
| | - Alberto Martínez
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
| | - Roberto A. Sánchez-Delgado
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Inorgánica, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain, and Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210
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16
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Tejel C, Ciriano MA, del Río MP, van den Bruele FJ, Hetterscheid DGH, Tsichlis i Spithas N, de Bruin B. Deprotonation Induced Ligand-to-Metal Electron Transfer: Synthesis of a Mixed-Valence Rh(−I,I) Dinuclear Compound and Its Reaction with Dioxygen. J Am Chem Soc 2008; 130:5844-5. [DOI: 10.1021/ja711495v] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Miguel A. Ciriano
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - M. Pilar del Río
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Fieke J. van den Bruele
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Dennis G. H. Hetterscheid
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Nearchos Tsichlis i Spithas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
| | - Bas de Bruin
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain, and Homogeneous and Supramolecular Catalysis, Vanʼt Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
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17
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Camerano JA, Casado MA, Ciriano MA, Tejel C, Oro LA. Coordination features of a hybrid scorpionate/phosphane ligand exemplified with Iridium. Chemistry 2007; 14:1897-905. [PMID: 18064622 DOI: 10.1002/chem.200701209] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although the pentacoordinated complex [Ir{(allyl)B(CH(2)PPh(2))(pz)(2)}(cod)] (1; pz=pyrazolyl, cod=1,5-cyclooctadiene), isolated from the reaction of [{Ir(mu-Cl)(cod)}(2)] with [Li(tmen)][B(allyl)(CH(2)PPh(2))- (pz)(2)] (tmen=N,N,N',N'-tetramethylethane-1,2-diamine), shows behavior similar to that of the related hydridotris(pyrazolyl)borate complex, the carbonyl derivatives behave in a quite different way. On carbonylation of 1, the metal--metal-bonded complex [(Ir{(allyl)B(CH(2)PPh(2))(pz)(2)}CO)(2)(mu-CO)] (2) that results has a single ketonic carbonyl bridge. This bridging carbonyl is labile such that upon treatment of 2 with PMe(3) the pentacoordinated Ir(I) complex [Ir(CO){(pz)B(eta(2)-CH(2)CH=CH(2))(CH(2)PPh(2))(pz)}(PMe(3))] (3) was isolated. Complex 3 shows a unique fac coordination of the hybrid ligand with the allyl group eta(2)-bonded to the metal in the equatorial plane of a distorted trigonal bipyramid with one pyrazolate group remaining uncoordinated. This unusual feature can be rationalized on the basis of the electron-rich nature of the metal center. The related complex [Ir(CO){(pz)B(eta(2)-CH(2)CH=CH(2))(CH(2)PPh(2))(pz)}(PPh(3))] (4) was found to exist in solution as a temperature-dependent equilibrium between the cis-pentacoordinated and trans square planar isomers with respect to the phosphorus donor atoms. Protonation of 3 with different acids is selective at the iridium center and gives the cationic hydrides [Ir{(allyl)B(CH(2)PPh(2))(pz)(2)}(CO)H(PMe(3))]X (X=BF(4) (5), MeCO(2) (6), and Cl (7)). Complex 7 further reacts with HCl to generate the unexpected product [Ir(CO)Cl{(Hpz)B(CH(2)PPh(2))(pz)CH(2)CH(Me)}(PMe(3))]Cl (9; Hpz=protonated pyrazolyl group) formed by the insertion of the hydride into the Ir-(eta(2)-allyl) bond. In contrast, protonation of complex 4 with HCl stops at the hydrido complex [Ir{(allyl)B(CH(2)PPh(2))(pz)(2)}(CO)H(PPh(3))]Cl (8). X-ray diffraction studies carried out on complexes 2, 3, and 9 show the versatility of the hybrid scorpionate ligand in its coordination.
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Affiliation(s)
- José A Camerano
- Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Aragón, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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Zhou Y, Chen W. Synthesis and Characterization of Square-Planar Tetranuclear Silver and Gold Clusters Supported by a Pyrazole-Linked Bis(N-heterocyclic carbene) Ligand. Organometallics 2007. [DOI: 10.1021/om070104j] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yongbo Zhou
- Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, People's Republic of China
| | - Wanzhi Chen
- Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, People's Republic of China
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Garralda MA, Hernández R, Ibarlucea L, Pinilla E, Torres MR, Zarandona M. Rhodium(III) Acyl Hydrido, Acyl Hydroxyalkyl, Diacyl, Acyl Hydrido Aldehyde, and Acyl Hydrido Alcohol Complexes. Reduction of Aldehyde to Alcohol through Rhodium Hydroxyalkyl Complexes. Organometallics 2007. [DOI: 10.1021/om060978q] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- María A. Garralda
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Ricardo Hernández
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Lourdes Ibarlucea
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Elena Pinilla
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - M. Rosario Torres
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Malkoa Zarandona
- Facultad de Química de San Sebastián, Universidad del País Vasco, Apdo. 1072, 20080 San Sebastián, Spain, and Departamento de Química Inorgánica, Laboratorio de Difracción de Rayos X, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
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Albertin G, Antoniutti S, Castro J, Garcia-Fontán S, Gurabardhi E. Preparation and reactivity of iridium(III) hydride complexes with pyrazole and imidazole ligands. J Organomet Chem 2006. [DOI: 10.1016/j.jorganchem.2005.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Albertin G, Antoniutti S, Bacchi A, Pelizzi G, Tollon M. Preparation of rhenium hydride complexes with pyrazole and pyrazolato ligands. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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