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Frieß S, Benyak A, Herrera A, Escalona AM, Heinemann FW, Langer J, Fehn D, Pividori D, Grasruck A, Munz D, Meyer K, Dorta R. Ir(IV) Sulfoxide-Pincer Complexes by Three-Electron Oxidative Additions of Br 2 and I 2. Unprecedented Trap-Free Reductive Elimination of I 2 from a formal d 5 Metal. Inorg Chem 2022; 61:1236-1248. [PMID: 34990121 DOI: 10.1021/acs.inorgchem.1c02956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oxidative addition of 1.5 equiv of bromine or iodine to a Ir(I) sulfoxide pincer complex affords the corresponding Ir(IV) tris-bromido or tris-iodido complexes, respectively. The unprecedented trap-free reductive elimination of iodine from the Ir(IV)-iodido complex is induced by coordination of ligands or donor solvents. In the case of added I-, the isostructural tris-iodo Ir(III)-ate complex is quickly generated, which then can be readily reoxidized to the Ir(IV)-iodido complex with FcPF6 or electrochemically. DFT calculations indicate an "inverted ligand field" in the Ir(IV) complexes and favor dinuclear pathways for the reductive elimination of iodine from the formal d5 metal center.
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Affiliation(s)
- Sibylle Frieß
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Anna Benyak
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Alberto Herrera
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Ana M Escalona
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Frank W Heinemann
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Jens Langer
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Dominik Fehn
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Daniel Pividori
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Alexander Grasruck
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Dominik Munz
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany.,Anorganische Chemie: Koordinationschemie, Universität des Saarlandes, Campus Geb. C4.1, 66123 Saarbrücken, Germany
| | - Karsten Meyer
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
| | - Romano Dorta
- Department Chemie und Pharmazie, Anorganische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstraße 1, 91058 Erlangen, Germany
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Deak N, Thillaye du Boullay O, Mallet‐Ladeira S, Moraru I, Madec D, Nemes G. Synthesis and Characterization of a Novel Bis‐Sulfoxide and Its Evaluation as a Ligand in p‐Block Chemistry. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Noémi Deak
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 Route de Narbonne 31062 Toulouse France
- Facultatea de Chimie si Inginerie Chimica Universitatea Babes‐Bolyai str. Arany Janos, nr. 11 400028 Cluj‐Napoca Romania
| | - Olivier Thillaye du Boullay
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 Route de Narbonne 31062 Toulouse France
| | - Sonia Mallet‐Ladeira
- Institut de Chimie de Toulouse, FR2599 Université Paul Sabatier, UPS 118 Route de Narbonne 31062 Toulouse France
| | - Ionuţ‐Tudor Moraru
- Facultatea de Chimie si Inginerie Chimica Universitatea Babes‐Bolyai str. Arany Janos, nr. 11 400028 Cluj‐Napoca Romania
| | - David Madec
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069) Université de Toulouse, CNRS 118 Route de Narbonne 31062 Toulouse France
| | - Gabriela Nemes
- Facultatea de Chimie si Inginerie Chimica Universitatea Babes‐Bolyai str. Arany Janos, nr. 11 400028 Cluj‐Napoca Romania
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Seidel FW, Frieß S, Heinemann FW, Chelouan A, Scheurer A, Grasruck A, Herrera A, Dorta R. C2-Symmetric (SO)N(SO) Sulfoxide Pincer Complexes of Mg and Pd: Helicity Switch by Ambidentate S/O-Coordination and Isolation of a Chiral Pd-Sulfenate. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Falk W. Seidel
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Sibylle Frieß
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Frank W. Heinemann
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Ahmed Chelouan
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Andreas Scheurer
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Alexander Grasruck
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Alberto Herrera
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
| | - Romano Dorta
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich−Alexander−Universität Erlangen−Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany
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Kosanovich AJ, Jordan AM, Bhuvanesh N, Ozerov OV. Synthesis and characterization of rhodium, iridium, and palladium complexes of a diarylamido-based PNSb pincer ligand. Dalton Trans 2018; 47:11619-11624. [DOI: 10.1039/c8dt02207k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A new diarylmido-based pincer proto ligand (iPrPNHSbPh) with one –PPri2 and one –SbPh2 side donor has been synthesized.
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Affiliation(s)
| | - Aldo M. Jordan
- Department of Chemistry
- Texas A&M University
- College Station
- USA
| | | | - Oleg. V. Ozerov
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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Schmid B, Frieß S, Herrera A, Linden A, Heinemann FW, Locke H, Harder S, Dorta R. Chiral amino-phosphine and amido-phosphine complexes of Ir and Mg. Catalytic applications in olefin hydroamination. Dalton Trans 2016; 45:12028-40. [PMID: 27397552 DOI: 10.1039/c6dt01146b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of rac- and (S,S)-trans-9,10-dihydro-9,10-ethanoanthracene-11,12-diamine (ANDEN) with PClPh2 in the presence of NEt3 yield the chiral amino-phosphine ligands rac-6 and (S,S)-6, respectively, on multi-gram scales. Both forms of 6 react quantitatively with MgPh2 to afford the C2-symmetric, N-bound Mg amidophosphine complexes rac-7 and (S,S)-7. The former crystallizes as a racemic conglomerate, which is a rare occurrence. Mixing (S,S)- or rac-6 with [IrCl(COE)2]2 leads in both cases to the homochiral dinuclear chloro-bridged P-ligated aminophosphine iridium complexes (S,S,S,S)-9 and rac-9 in excellent yields. X-ray quality single crystals only grow as the racemic compound (or 'true racemate') rac-9 thanks to its lowered solubility. In the coordinating solvent CH3CN, rac-9 transforms in high yield into mononuclear Ir-complex rac-10. The crystal structures of compounds rac-6, (S,S)-7, rac-9, and rac-10 reveal the ambidentate nature of the P-N function: amide-coordination in the Mg-complex (S,S)-7 and P-chelation of the softer Ir(i) centres in complexes rac-9 and rac-10. Furthermore, the crystal structures show flexible, symmetry lowering seven-membered P-chelate rings in the Ir complexes and a surprising amount of deformation within the ANDEN backbone. The simulation of this deformation by DFT and SCF calculations indicates low energy barriers. (S,S)-7 and (S,S,S,S)-9 catalyze the intra- and intermolecular hydroamination of alkenes, respectively: 5 mol% of (S,S)-7 affords 2-methyl-4,4'-diphenylcyclopentyl amine quantitatively (7% ee), and 2.5 mol% of (S,S,S,S)-9 in the presence of 5.0 mol% co-catalyst (LDA, PhLi, or MgPh2) gives exo-(2-arylamino)bornanes in up to 68% yield and up to 16% ee.
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Affiliation(s)
- Bernhard Schmid
- Department Chemie und Pharmazie, Anorganische und Allgemeine Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.
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Charette BJ, Ritch JS. A Selenium-Containing Diarylamido Pincer Ligand: Synthesis and Coordination Chemistry with Group 10 Metals. Inorg Chem 2016; 55:6344-50. [DOI: 10.1021/acs.inorgchem.6b01203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bronte J. Charette
- Department of Chemistry, The University of Winnipeg, 515 Portage
Avenue, Winnipeg, Manitoba R3J 2N6, Canada
- Department of Chemistry, University of Manitoba, 360 Parker Building, Winnipeg, Manitoba R3T 2N2, Canada
| | - Jamie S. Ritch
- Department of Chemistry, The University of Winnipeg, 515 Portage
Avenue, Winnipeg, Manitoba R3J 2N6, Canada
- Department of Chemistry, University of Manitoba, 360 Parker Building, Winnipeg, Manitoba R3T 2N2, Canada
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