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Structure-property relationships of photofunctional diiridium(II) complexes with tetracationic charge and an unsupported Ir-Ir bond. Commun Chem 2022; 5:159. [PMID: 36698025 PMCID: PMC9814866 DOI: 10.1038/s42004-022-00775-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 11/09/2022] [Indexed: 11/25/2022] Open
Abstract
In contrast to the extensively studied dirhodium(II) complexes and iridium(III) complexes, neutral or dicationic dinuclear iridium(II) complexes with an unsupported ligand are underdeveloped. Here, a series of tetracationic dinuclear iridium(II) complexes, featuring the unsupported Ir(II)-Ir(II) single bond with long bond distances (2.8942(4)-2.9731(4) Å), are synthesized and structurally characterized. Interestingly, compared to the previous unsupported neutral or dicationic diiridium(II) complexes, our DFT and high-level DLPNO-CCSD(T) results found the largest binding energy in these tetracationic complexes even with the long Ir(II)-Ir(II) bond. Our study further reveals that London dispersion interactions enhance the stability cooperatively and significantly to overcome the strong electrostatic repulsion between two half dicationic metal fragments. This class of complexes also exhibit photoluminescence in solution and solid states, which, to our knowledge, represents the first example of this unsupported dinuclear iridium(II) system. In addition, their photoreactivity involving the generation of iridium(II) radical monomer from homolytic cleavage was also explored. The experimental results of photophysical and photochemical behaviours were also correlated with computational studies.
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Nguyen DH, Greger I, Pérez-Torrente JJ, Jiménez MV, Modrego FJ, Lahoz FJ, Oro LA. ONO Dianionic Pincer-Type Ligand Precursors for the Synthesis of σ,π-Cyclooctenyl Iridium(III) Complexes: Formation Mechanism and Coordination Chemistry. Organometallics 2013. [DOI: 10.1021/om400767d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Duc Hanh Nguyen
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Ingo Greger
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - F. Javier Modrego
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Fernando J. Lahoz
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea-ISQCH, Facultad
de Ciencias, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna, 12, 50009 Zaragoza, Spain
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Galardon E, Roger T, Deschamps P, Roussel P, Tomas A, Artaud I. Synthesis of a FeIISH Complex Stabilized by an Intramolecular N–H···S Hydrogen Bond, Which Acts as a H2S Donor. Inorg Chem 2012; 51:10068-70. [DOI: 10.1021/ic300952d] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Erwan Galardon
- Laboratoire de Chimie et Biochimie
Pharmacologique et Toxicologique, UMR 8601 CNRS, Université Paris Descartes, PRES
Paris cité, 45 rue des Saints Pères, 75270 Paris Cedex
06, France
| | - Thomas Roger
- Laboratoire de Chimie et Biochimie
Pharmacologique et Toxicologique, UMR 8601 CNRS, Université Paris Descartes, PRES
Paris cité, 45 rue des Saints Pères, 75270 Paris Cedex
06, France
| | - Patrick Deschamps
- Laboratoire
de Crystallographie
et RMN Biologiques, UMR 8015 CNRS, Université Paris Descartes, PRES Paris cité, 4 avenue de
l’Observatoire, 75270 Paris Cedex 06, France
| | - Pascal Roussel
- Unité de Catalyse et Chimie
du Solide (UCCS), UMR 8012 CNRS, École Nationale Supérieure de Chimie de Lille, BP 90108, 59652
Villeneuve d’Ascq Cedex, France
| | - Alain Tomas
- Laboratoire
de Crystallographie
et RMN Biologiques, UMR 8015 CNRS, Université Paris Descartes, PRES Paris cité, 4 avenue de
l’Observatoire, 75270 Paris Cedex 06, France
| | - Isabelle Artaud
- Laboratoire de Chimie et Biochimie
Pharmacologique et Toxicologique, UMR 8601 CNRS, Université Paris Descartes, PRES
Paris cité, 45 rue des Saints Pères, 75270 Paris Cedex
06, France
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Jiménez MV, Lahoz FJ, Lukešová L, Miranda JR, Modrego FJ, Nguyen DH, Oro LA, Pérez-Torrente JJ. Hydride Mobility in Trinuclear Sulfido Clusters with the Core [Rh3(μ-H)(μ3-S)2]: Molecular Models for Hydrogen Migration on Metal Sulfide Hydrotreating Catalysts. Chemistry 2011; 17:8115-28. [DOI: 10.1002/chem.201100138] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Indexed: 11/10/2022]
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Liu R, Li X, Zhang H, Weng L, Zhou X. Synthesis and controlled hydrolysis of organolanthanide complexes with mono- and dianionic benzimidazole-2-thiolate ligands. Dalton Trans 2010; 39:11053-9. [PMID: 20963210 DOI: 10.1039/c0dt00129e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of Cp(3)Er with one equivalent of benzimidazole-2-thiol (H(2)Bzimt) in THF affords the monoanionic HBzimt(-) complex Cp(2)Er(η(2)-HBzimt)(THF)(2) (1). Reaction of Cp(3)Yb with two equivalents of H(2)Bzimt gives complex CpYb(η(2)-HBzimt)(2)(THF) (2) at room temperature. Treatment of Cp(3)Ln with three equivalents of H(2)Bzimt in reflux THF affords the homoleptic Ln(η(2)-HBzimt)(3)(THF)(2) (Ln = Er (3), Y (4)). Cp(3)Ln reacts with 0.5 equivalents of H(2)Bzimt to afford the dianionic Bzimt(2-) complexes [(Cp(2)Ln)(THF)](2)(μ-Bzimt) (Ln = Yb (5), Er (6), Dy (7), Y (8)) in good yields, in which the Bzimt(2-) ligand bridges the two metals in an μ-η(2):η(2) coordination mode. Interestingly, controlled hydrolysis of complexes Cp(2)Ln(η(2)-HBzimt)(THF)(2), CpLn(η(2)-HBzimt)(2)(THF) and [(Cp(2)Ln)(THF)](2)(μ-Bzimt) produces the same tetranuclear complexes [CpLn(μ(3)-OH)(μ-η(1):η(2)-HBzimt)](4) (Ln = Yb (9), Er (10), Y (11)), indicating that the hydrolysis selectivity greatly depends on the number of coordinated cyclopentadienyl groups. All complexes were characterized by elemental analysis, spectroscopic properties and X-ray single crystal diffraction analysis.
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Affiliation(s)
- Ruiting Liu
- Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University, Shanghai, 200433, People's Republic of China
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