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Bora U, Abdallah S, Mhanna R, Nicolas P, Dok A, de Coene Y, Van Cleuvenbergen S, Jeannin O, Malval JP, Clays K, Bellec N, Ocak H, Bilgin-Eran B, Camerel F, Akdas-Kiliç H. New Multifunctional Bipyrimidine-Based Chromophores for NLO-Active Thin-Film Preparation. Chemistry 2024; 30:e202302930. [PMID: 37926677 DOI: 10.1002/chem.202302930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
New synthesized bipyrimidine-based chromophores presenting alkoxystyryl donor groups carrying aliphatic achiral and chiral chains in the 4 position, connected to electron-accepting 2,2-bipyrimidine cores have been synthesized. Their linear and nonlinear optical (NLO) properties were investigated as well as their mesomorphic properties by various techniques (light-transmission measurements, polarized-light optical microscopy, differential scanning calorimetry measurements and two-photon excited fluorescence). The derivatives with achiral linear carbon chains were found to exhibit liquid-crystal properties with the formation smectic phases over large temperature ranges, which were confirmed by small-angle X-ray scattering analysis via stacking models. The nonlinear optical properties in the solid state for derivatives with C14 and the citronellol chains have been studied by wide-field second-harmonic generation and multi-photon fluorescence imaging, confirming centrosymmetry for these achiral mesogens and their excellent third-order nonlinearity whereas the chiral compound exhibits non-centrosymmetric organization resulting in a strong Second Harmonic Generation at the crystal state.
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Affiliation(s)
- Umut Bora
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Stephania Abdallah
- Institut de Science des Matériaux de Mulhouse CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | - Rana Mhanna
- Institut de Science des Matériaux de Mulhouse CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | - Prescillia Nicolas
- Institut des Sciences Chimiques de Rennes CNRS UMR, Université de Rennes, Rennes, France
| | - Ahmet Dok
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Yovan de Coene
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | | | - Olivier Jeannin
- Institut des Sciences Chimiques de Rennes CNRS UMR, Université de Rennes, Rennes, France
| | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | - Koen Clays
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Nathalie Bellec
- Institut des Sciences Chimiques de Rennes CNRS UMR, Université de Rennes, Rennes, France
| | - Hale Ocak
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | | | - Franck Camerel
- Institut des Sciences Chimiques de Rennes CNRS UMR, Université de Rennes, Rennes, France
| | - Huriye Akdas-Kiliç
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
- Institut des Sciences Chimiques de Rennes CNRS UMR, Université de Rennes, Rennes, France
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Romero Ávila M, León-Rojas AF, Lacroix PG, Malfant I, Farfán N, Mhanna R, Santillan R, Ramos-Ortiz G, Malval JP. Two-Photon-Triggered NO Release via a Ruthenium-Nitrosyl Complex with a Star-Shaped Architecture. J Phys Chem Lett 2020; 11:6487-6491. [PMID: 32696645 DOI: 10.1021/acs.jpclett.0c01953] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report herein a molecular engineering strategy based on the design of a multipolar ruthenium-nitrosyl (Ru-NO) complex with a three-branched architecture. The three Ru-NO units are introduced at the periphery of a highly π-delocalized truxene core bearing three terpyridine ligands. The two-photon absorption capabilities of the complex were investigated by the Z-scan technique. The strong electronic coupling among the individual arms gives rise to a very strong two-photon absorption response (δ800 nm ∼ 1600 GM), which corresponds to a 16-fold enhancement of the capability of a single-arm reference, thereby promoting an efficient light-driven NO release process in aqueous media.
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Affiliation(s)
- Margarita Romero Ávila
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 route de Narbonne, BP44099, 31077 Toulouse Cedex 4, France
- Facultad de Quı́mica, Departamento de Quı́mica Orgánica, Universidad Nacional Autónoma de México, 04510 México, DF, México
| | - Andrés Felipe León-Rojas
- Facultad de Quı́mica, Departamento de Quı́mica Orgánica, Universidad Nacional Autónoma de México, 04510 México, DF, México
| | - Pascal G Lacroix
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 route de Narbonne, BP44099, 31077 Toulouse Cedex 4, France
| | - Isabelle Malfant
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 route de Narbonne, BP44099, 31077 Toulouse Cedex 4, France
| | - Norberto Farfán
- Facultad de Quı́mica, Departamento de Quı́mica Orgánica, Universidad Nacional Autónoma de México, 04510 México, DF, México
| | - Rana Mhanna
- Institut de Science des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, 15 rue Jean Starcky, 68057 Mulhouse, France
| | - Rosa Santillan
- Departamento de Quı́mica, Centro de Investigación y de Estudios del IPN (CINVESTAV), Apdo., Postal 14-740, 07000 México, DF, México
| | | | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, 15 rue Jean Starcky, 68057 Mulhouse, France
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An Ab Initio QM/MM Study of the Electrostatic Contribution to Catalysis in the Active Site of Ketosteroid Isomerase. Molecules 2018; 23:molecules23102410. [PMID: 30241317 PMCID: PMC6222312 DOI: 10.3390/molecules23102410] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 01/28/2023] Open
Abstract
The electric field in the hydrogen-bond network of the active site of ketosteroid isomerase (KSI) has been experimentally measured using vibrational Stark effect (VSE) spectroscopy, and utilized to study the electrostatic contribution to catalysis. A large gap was found in the electric field between the computational simulation based on the Amber force field and the experimental measurement. In this work, quantum mechanical (QM) calculations of the electric field were performed using an ab initio QM/MM molecular dynamics (MD) simulation and electrostatically embedded generalized molecular fractionation with conjugate caps (EE-GMFCC) method. Our results demonstrate that the QM-derived electric field based on the snapshots from QM/MM MD simulation could give quantitative agreement with the experiment. The accurate calculation of the electric field inside the protein requires both the rigorous sampling of configurations, and a QM description of the electrostatic field. Based on the direct QM calculation of the electric field, we theoretically confirmed that there is a linear correlation relationship between the activation free energy and the electric field in the active site of wild-type KSI and its mutants (namely, D103N, Y16S, and D103L). Our study presents a computational protocol for the accurate simulation of the electric field in the active site of the protein, and provides a theoretical foundation that supports the link between electric fields and enzyme catalysis.
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El Moll H, Cordier M, Nocton G, Massuyeau F, Latouche C, Martineau-Corcos C, Perruchas S. A Heptanuclear Copper Iodide Nanocluster. Inorg Chem 2018; 57:11961-11969. [DOI: 10.1021/acs.inorgchem.8b01516] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hani El Moll
- Department of Chemistry, University of Hail, P.O.
Box 2440, Hail, Saudi Arabia
| | - Marie Cordier
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128 Palaiseau Cedex, France
| | - Grégory Nocton
- LCM, CNRS, Ecole Polytechnique, Université Paris-Saclay, 91128 Palaiseau Cedex, France
| | - Florian Massuyeau
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Camille Latouche
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Charlotte Martineau-Corcos
- MIM, Institut Lavoisier de Versailles, UMR, CNRS 8180, Université de Versailles St-Quentin en Yvelines, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France
- CNRS, CEMHTI, UPR 3079, Université d’Orléans, F-45071 Orléans, France
| | - Sandrine Perruchas
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
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