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Brandão I, Georg HC, Castro MA, Fonseca TL. Calculation of the geometry, absorption spectrum, and first hyperpolarizability of 4,5-dicyanoimidazole derivatives in solution. A multiscale ASEC-FEG study. J Chem Phys 2024; 161:034503. [PMID: 39007388 DOI: 10.1063/5.0215931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
We investigate the effects of solvents on the geometry, absorption spectrum, and first hyperpolarizability of six push-pull molecules, each containing a 4,5-dicyanoimidazole group as an electron acceptor and a N,N-dimethylamino group as an electron donor, with systematically extended π-conjugated systems. Geometry optimizations in dichloromethane, methanol, water, and formamide under normal thermodynamic conditions were performed using the average solvent electrostatic configuration-free energy gradient method, which employs a discrete solvent model. The conformational structure of molecules is moderately affected by the environment, with the π-conjugated system becoming more planar in protic solvents. Solvent effects on the first hyperpolarizability result in marked increases that are in line with the red shifts of the absorption spectrum. The hyperpolarizability of smaller molecules within the set may be significantly influenced by the effects of geometry relaxation in highly polar protic solvents. The results illustrate the role of hydrogen bonds in the structure and electronic properties of push-pull molecules in protic environments. For smaller molecules, hydrogen bonds significantly contribute to enhancing the hyperpolarizability, but the effect of these specific interactions becomes less significant with the length of the π-conjugated system.
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Affiliation(s)
- Idney Brandão
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
| | - Herbert C Georg
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
| | - Marcos A Castro
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
| | - Tertius L Fonseca
- Instituto de Física, Universidade Federal de Goiás, Goiânia, Goiás 74690-900, Brazil
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Bouquiaux C, Beaujean P, Ramos TN, Castet F, Rodriguez V, Champagne B. First hyperpolarizability of the di-8-ANEPPS and DR1 nonlinear optical chromophores in solution. An experimental and multi-scale theoretical chemistry study. J Chem Phys 2023; 159:174307. [PMID: 37933782 DOI: 10.1063/5.0174979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 10/10/2023] [Indexed: 11/08/2023] Open
Abstract
The solvent effects on the linear and second-order nonlinear optical properties of an aminonaphtylethenylpyridinium (ANEP) dye are investigated by combining experimental and theoretical chemistry methods. On the one hand, deep near infrared (NIR) hyper-Rayleigh scattering (HRS) measurements (1840-1950 nm) are performed on solutions of di-8-ANEPPS in deuterated chloroform, dimethylformamide, and dimethylsulfoxide to determine their first hyperpolarizablity (βHRS). For the first time, these HRS experiments are carried out in the picosecond regime in the deep NIR with very moderate (≤3 mW) average input power, providing a good signal-to-noise ratio and avoiding solvent thermal effects. Moreover, the frequency dispersion of βHRS is investigated for Disperse Red 1 (DR1), a dye commonly used as HRS external reference. On the other hand, these are compared with computational chemistry results obtained by using a sequential molecular dynamics (MD) then quantum mechanics (QM) approach. The MD method allows accounting for the dynamical nature of the molecular structures. Then, the QM part is based on TDDFT/M06-2X/6-311+G* calculations using solvation models ranging from continuum to discrete ones. Measurements report a decrease of the βHRS of di-8-ANEPPS in more polar solvents and these effects are reproduced by the different solvation models. For di-8-ANEPPS and DR1, comparisons show that the use of a hybrid solvation model, combining the description of the solvent molecules around the probe by point charges with a continuum model, already achieves quasi quantitative agreement with experiment. These results are further improved by using a polarizable embedding that includes the atomic polarizabilities in the solvent description.
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Affiliation(s)
- Charlotte Bouquiaux
- University of Namur, Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - Pierre Beaujean
- University of Namur, Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - Tárcius N Ramos
- University of Namur, Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - Frédéric Castet
- University of Bordeaux, Institut des Sciences Moléculaires, UMR 5255 CNRS, cours de la Libération 351, F-33405 Talence Cedex, France
| | - Vincent Rodriguez
- University of Bordeaux, Institut des Sciences Moléculaires, UMR 5255 CNRS, cours de la Libération 351, F-33405 Talence Cedex, France
| | - Benoît Champagne
- University of Namur, Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, rue de Bruxelles, 61, B-5000 Namur, Belgium
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Cardoso WB, Colherinhas G. Fullerene C60 spectroscopy in [BMIM][PF6] ionic liquid: Molecular dynamics study using polarization effects. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wong QA, Quah CK, Wong XA, Win YF, Kwong HC, Patil PS, Gummagol NB, Soma VR. A Comprehensive Study on the Photophysical and Non-Linear Optical Properties of Thienyl-Chalcone Derivatives. Phys Chem Chem Phys 2022; 24:21927-21953. [DOI: 10.1039/d2cp02127g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of the substitutional position of chorine atom on the non-linear optical (NLO) response of chalcone derivatives is reported in this paper. Two thienyl-chalcone derivatives, (E)-3-(2,4-dichloro-phenyl)-1-(2,5-dichlorothiophen-3-yl)prop-2-en-1-one (3A25D2) and (E)-3-(2,6-dichloro-phenyl)-1-(2,5-dichlorothiophen-3-yl)prop-2-en-1-one...
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Oliveira LB, Cardoso WB, Colherinhas G. Hydroxylic, sulfur-containing and amidic amino acids in water solution: Atomic charges parameters for computational modeling using molecular dynamics simulation and DFT calculations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mendanha K, Prado RC, Oliveira LB, Colherinhas G. TD-DFT absorption spectrum of (poly)threonine in water: A study combining molecular dynamics and quantum mechanics calculations. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Brandão I, Fonseca TL, Franco LR, Georg HC, Castro MA. Applicability of DFT functionals for evaluating the first hyperpolarizability of phenol blue in solution. J Chem Phys 2021; 154:094501. [PMID: 33685136 DOI: 10.1063/5.0033134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The first electronic hyperpolarizability (β) of phenol blue (PB) in several solvents in a wide range of dielectric constants is investigated using the density functional theory (DFT). The reliability of various exchange-correlation functionals is assessed by a comparison to reference Møller-Plesset second-order perturbation theory (MP2) calculations. The equilibrium geometry of PB in each solvent is obtained by using the average solvent electrostatic configuration/free energy gradient method, which performs optimizations on the free energy hyper-surface by employing iteratively the sequential quantum mechanics/molecular mechanics methodology. The dependence of β on the bond length alternation (BLA) coordinate is rationalized by means of the two-level model. Within the employed exchange-correlation functionals, the LC-BLYP functional shows the best performance for describing the static and dynamic MP2 results of β, which increases as the BLA diminishes, reaching a maximum in an intermediate value of BLA. The results also illustrate the role played by the difference between the ground- and excited-state dipole moments (Δμ) in determining the hyperpolarizability behavior in solution. Particularly, in the aqueous solution case, Δμ goes to around zero when BLA is near zero, leading to an abrupt decline in the β value. The DFT results of this study, therefore, indicate a clear relationship between the first hyperpolarizability and the BLA coordinate for the PB in solution, in agreement with experiment.
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Affiliation(s)
- Idney Brandão
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO 74690-900, Brazil
| | - Tertius L Fonseca
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO 74690-900, Brazil
| | - Leandro R Franco
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO 74690-900, Brazil
| | - Herbert C Georg
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO 74690-900, Brazil
| | - Marcos A Castro
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO 74690-900, Brazil
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Mendanha K, Prado RC, Oliveira LBA, Colherinhas G. Molecular dynamic simulations, GIAO-NMR and TD-DFT spectroscopy analyze for zwitterionic isoleucine (ILE) N , 1 ≤ N ≤ 6, in water solution. J Comput Chem 2021; 42:344-357. [PMID: 33283895 DOI: 10.1002/jcc.26460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/01/2020] [Accepted: 11/22/2020] [Indexed: 12/17/2022]
Abstract
In this article, we investigate the effects of the isoleucine (ILE)N amino acid chain growth, N = 1.0.6, the ILE conformational effect as well as the solvent presence on the electrical and magnetic spectroscopic properties when these compounds are in aqueous solution. Computational molecular dynamics simulations were performed to include the solvent medium and generate uncorrelated configurations involving solute-solvent structures. The charge point model for solvent was used to obtain the results for quantum mechanical calculation, in special DFT calculations, for (ILE)N structures. Our results for the magnetic shielding constant obtained via GIAO-DFT-NMR calculations show that there is evidence of a magnetic behavior that characterizes the number of peptide bonds and, therefore, how the N isoleucine polypeptide chain is composed. TD-DFT results also show an absorption band shift to larger wavelengths indicating a dependence on N growth.
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Affiliation(s)
- Karinna Mendanha
- Instituto de Física, Universidade Federal de Goiás, Goiás, Brazil
| | | | | | - Guilherme Colherinhas
- Instituto de Física, Universidade Federal de Goiás, Goiás, Brazil.,Departamento de Física, CEPAE, Universidade Federal de Goiás, Goiás, Brazil
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Update of CHARMM36's atomic charges for aromatic amino acids in water solution simulations and spectroscopy analysis via sequential molecular dynamics and DFT calculations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114739] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Oliveira LBA, Colherinhas G. Can CHARMM36 atomic charges described correctly the interaction between amino acid and water molecules by molecular dynamics simulations? J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113919] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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A6H polypeptide membranes: Molecular dynamics simulation, GIAO-DFT-NMR and TD-DFT spectroscopy analysis. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113850] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Brandão I, Fonseca TL, Georg HC, Castro MA, Pontes RB. Assessing the structure and first hyperpolarizability of Li@B 10H 14 in solution: a sequential QM/MM study using the ASEC-FEG method. Phys Chem Chem Phys 2020; 22:17314-17324. [PMID: 32691034 DOI: 10.1039/d0cp01268h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure and electronic properties of the lithium decahydroborate (Li@B10H14) complex in chloroform and water in normal thermodynamic conditions have been investigated using sequential QM/MM calculations by means of the average solvent electrostatic configuration (ASEC) and the Free Energy Gradient (FEG) methods. To obtain the structure of the Li@B10H14 complex in each of the solvents considered, we have performed geometry optimizations in solution using the ASEC-FEG method. The results show, for the first time with a realistic model of the molecular environment, that this alkali-metal-borane cluster is stable in chloroform but unstable in water. We have also explored the role of the electronic polarization of the solute due to solvent in the static first hyperpolarizability. The results show that, despite the reduction due to the effect of electrostatic polarization in chloroform, the Li@B10H14 complex still exhibits a large electronic first hyperpolarizability, with potential for application as a second-order nonlinear optical (NLO) material. In water, in contrast, the contribution of the excess electron for NLO responses is significantly affected by the electrostatic polarization effects. Therefore our results reveal that the influence of the environment must be considered in the design of new stable NLO materials.
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Affiliation(s)
- Idney Brandão
- Instituto de Física, Universidade Federal de Goiás, Goiânia-GO, 74690-900, Brazil.
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Torres E, Adriano Junior L, Georg H, Castro M, Fonseca T. The influence of geometry relaxation in solution on the first hyperpolarizability of mesoionic compounds. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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First hyperpolarizability of isomers of pyridinium N-phenoxide betaine dye in solution using the ASEC-FEG method. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.03.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Muhammad S, Al-Sehemi AG, Irfan A, Chaudhry AR. Tuning the push–pull configuration for efficient second-order nonlinear optical properties in some chalcone derivatives. J Mol Graph Model 2016; 68:95-105. [DOI: 10.1016/j.jmgm.2016.06.012] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/18/2016] [Accepted: 06/20/2016] [Indexed: 10/21/2022]
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Adriano Junior L, Fonseca TL, Castro MA. Solvent effects on the absorption spectrum and first hyperpolarizability of keto-enol tautomeric forms of anil derivatives: A Monte Carlo/quantum mechanics study. J Chem Phys 2016; 144:234511. [DOI: 10.1063/1.4954064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L. Adriano Junior
- Instituto de Física, Universidade Federal de Goiás, CEP 74.690-900, Goiânia, GO, Brazil
| | - T. L. Fonseca
- Instituto de Física, Universidade Federal de Goiás, CEP 74.690-900, Goiânia, GO, Brazil
| | - M. A. Castro
- Instituto de Física, Universidade Federal de Goiás, CEP 74.690-900, Goiânia, GO, Brazil
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