1
|
Martínez-Vollbert E, Philouze C, Cavignac T, Latouche C, Loiseau F, Lanoë PH. Neutral 2-phenylbenzimidazole-based iridium(III) complexes with picolinate ancillary ligand: tuning the emission properties by manipulating the substituent on the benzimidazole ring. Dalton Trans 2024; 53:4705-4718. [PMID: 38362807 DOI: 10.1039/d3dt03498d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
We report the synthesis and characterization of ten neutral bisheteroleptic iridium(III) complexes with 2-phenylbenzimidazole cyclometallating ligand and picolinate as ancillary ligand. The 2-phenylbenzimidazole has been modified by selected substituents introduced on the cyclometallating ring and/or on the benzimidazole moiety. The integrity of the complexes has been assessed by NMR spectroscopy, by high-resolution mass spectrometry and by elemental analysis. The complexes are demonstrated to be highly phosphorescent at room temperature and a luminescence study with comprehensive ab initio calculations allow us to determine the lowest emitting excited state which depends on the substituent nature and its position on the cyclometallating ligand.
Collapse
Affiliation(s)
| | | | - Théo Cavignac
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Camille Latouche
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France.
- Insitut universitaire de France (IUF), France
| | | | | |
Collapse
|
2
|
Martìnez-Vollbert E, Ciambrone C, Lafargue-Dit-Hauret W, Latouche C, Loiseau F, Lanoë PH. Bis-Heteroleptic Cationic Iridium(III) Complexes Featuring Cyclometalating 2-Phenylbenzimidazole Ligands: A Combined Experimental and Theoretical Study. Inorg Chem 2022; 61:3033-3049. [PMID: 35143722 DOI: 10.1021/acs.inorgchem.1c02968] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this report, we investigate a new family of cationic iridium(III) complexes featuring the cyclometalating ligand 2-phenylbenzimidazole and ancillary ligand 4,4'-dimethyl-2,2'-bipyridine. Our benchmark complex IrL12 (L1 = 2-phenylbenzimidazole) displays emission properties similar to those of the archetypical complex 2,2'-dipyridylbis(2',4'-phenylpyridine)iridium(III) in deaerated CH3CN (Φ = 0.20, λem = 584 nm and Φ = 0.14, λem = 585 nm, respectively) but exhibits a higher photoluminescence quantum yield in deaerated CH2Cl2 (Φ = 0.32, λem = 566 nm and Φ = 0.20, λem = 595 nm, respectively) and especially a lower nonradiative constant (knr = 6.6 × 105 s-1 vs knr = 1.4 × 106 s-1, respectively). As a primary investigation, we explored the influence of the introduction of electron-donating and electron-withdrawing groups on the benzimidazole moiety and the synergetic effect of the substitution of the cyclometalating phenyl moiety at the para position with the same substituents. The emission energy displays very good correlation with the Hammett constants of the introduced substituents as well as with ΔEredox values, which allow us to ascribe the phosphorescence of these series to emanate mainly from a mixed metal/ligand to ligand charge transfer triplet excited state (3M/LLCT*). Two complexes (IrL52 and IrL82) display a switch of the lowest triplet excited state from 3M/LLCT* to ligand centered (3LC*), from the less polar CH2Cl2 to the more polar CH3CN. The observed results are supported by (TD)-DFT computations considering the vibrational contributions to the electronic transitions. Chromaticity diagrams based on the maximum emission wavelength of the recorded and simulated phosphorescence spectra demonstrate the strong promise of our complexes as emitting materials, together with the very good agreement between experimental and theoretical results.
Collapse
Affiliation(s)
| | | | | | - Camille Latouche
- Université de Nantes, CNRS, Institut des Matériaux Jean Rouxel, IMN, F-44000 Nantes, France
| | | | | |
Collapse
|
3
|
Geometric, optical, and phosphorescent properties of cationic Ir(III) and Rh(III) complexes with cyclometalated ligands: DFT/TDDFT investigations. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02750-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
4
|
Schira R, Latouche C. DFT vs. TDDFT vs. TDA to simulate phosphorescence spectra of Pt- and Ir-based complexes. Dalton Trans 2021; 50:746-753. [DOI: 10.1039/d0dt03614e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quantum investigation of the optical (mainly luminescence) properties of twelve transition metal complexes using DFT, TDDFT and TDA computations is presented. Unrestricted DFT and TDA outperform TDDFT for the investigated complexes especially when an Ir centre is present.
Collapse
Affiliation(s)
- Romain Schira
- Université de Nantes
- CNRS
- Institut des Matériaux Jean Rouxel
- IMN
- F-44000 Nantes
| | - Camille Latouche
- Université de Nantes
- CNRS
- Institut des Matériaux Jean Rouxel
- IMN
- F-44000 Nantes
| |
Collapse
|
5
|
Theoretical investigation on green emitting heteroleptic cyclometalated iridium(III) complexes with fluorinated 2-phenylpyridine ligands. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
6
|
Boukabene M, Brahim H, Hadji D, Guendouzi A. Theoretical study of geometric, optical, nonlinear optical, UV–Vis spectra and phosphorescence properties of iridium(III) complexes based on 5-nitro-2-(2′,4′-difluorophenyl)pyridyl. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-2560-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
7
|
Stoliaroff A, Rio J, Latouche C. Accurate computations to simulate the phosphorescence spectra of large transition complexes: simulated colors match experiment. NEW J CHEM 2019. [DOI: 10.1039/c9nj02388g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an ab initio investigation on the luminescence properties of three iridium(iii) complexes is reported.
Collapse
Affiliation(s)
- Adrien Stoliaroff
- Institut des Materiaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Jérémy Rio
- Institut des Materiaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Camille Latouche
- Institut des Materiaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| |
Collapse
|
8
|
Structural, optical and nonlinear optical properties and TD-DFT analysis of heteroleptic bis-cyclometalated iridium(III) complex containing 2-phenylpyridine and picolinate ligands. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2396-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
9
|
Latouche C, Liao JH, Li YJ, Shiu RY, Barone V, Kahlal S, Liu CW, Saillard JY. Encapsulating Iodine and Copper into Copper(I) Clusters Stabilized by Dichalcogenolate Ligands: Stability, Structure, and Optical Properties. Inorg Chem 2017; 56:14135-14146. [DOI: 10.1021/acs.inorgchem.7b02269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Camille Latouche
- Institut des Matériaux
Jean Rouxel, Université de Nantes, CNRS, 2 rue de la Houssinière,
BP 32229, 44322 Nantes cedex 3, France
| | - Jian-Hong Liao
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Yi-Juan Li
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Ruei-Yi Shiu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus
de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Road, Shoufeng, Hualien 97401, Taiwan, Republic of China
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Campus
de Beaulieu, 263 av. Général Leclerc, 35042 Rennes, France
| |
Collapse
|
10
|
Ayache H, Hammoutène D, Fritsch E, Elkechai A, Boucekkine A, Latouche C. Comprehensive approach to simulate vibrationally resolved phosphorescence spectra of gold(III) complexes using DFT including temperature effects. Theor Chem Acc 2017. [DOI: 10.1007/s00214-017-2135-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
11
|
Massuyeau F, Faulques E, Latouche C. New Insights To Simulate the Luminescence Properties of Pt(II) Complexes Using Quantum Calculations. J Chem Theory Comput 2017; 13:1748-1755. [DOI: 10.1021/acs.jctc.7b00103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Florian Massuyeau
- Institut des Matériaux
Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de
la Houssiniere, BP 32229, 44322 Nantes cedex 3, France
| | - Eric Faulques
- Institut des Matériaux
Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de
la Houssiniere, BP 32229, 44322 Nantes cedex 3, France
| | - Camille Latouche
- Institut des Matériaux
Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de
la Houssiniere, BP 32229, 44322 Nantes cedex 3, France
| |
Collapse
|
12
|
Vibronic coupling to simulate the phosphorescence spectra of Ir(III)-based OLED systems: TD-DFT results meet experimental data. J Mol Model 2016; 22:265. [DOI: 10.1007/s00894-016-3132-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/26/2016] [Indexed: 10/20/2022]
|
13
|
Santoro F, Jacquemin D. Going beyond the vertical approximation with time-dependent density functional theory. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016. [DOI: 10.1002/wcms.1260] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fabrizio Santoro
- CNR-Consiglio Nazionale delle Ricerche; Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR); Pisa Italy
| | - Denis Jacquemin
- CEISAM, UMR CNRS 6230; Université de Nantes; Nantes France
- Institut Universitaire de France; Paris France
| |
Collapse
|
14
|
Massuyeau F, Faulques E, Latouche C, Barone V. New insights into the vibrational and optical signatures of trans-stilbene via integrated experimental and quantum mechanical approaches. Phys Chem Chem Phys 2016; 18:19378-85. [DOI: 10.1039/c6cp02787c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure, spectroscopic parameters and optical properties of stilbene have been investigated by a computational protocol including suitable treatment of anharmonic contributions together with new experimental results.
Collapse
Affiliation(s)
- Florian Massuyeau
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Eric Faulques
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | - Camille Latouche
- Institut des Matériaux Jean Rouxel (IMN)
- Université de Nantes
- CNRS
- 44322 Nantes cedex 3
- France
| | | |
Collapse
|