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Lima IT, Gomes RFC, Paura ENC, Provasi PF, Gester R, Rodrigues da Cunha A. Exploring the molecular solvatochromism, stability, reactivity, and non-linear optical response of resveratrol. J Mol Model 2024; 30:314. [PMID: 39167248 DOI: 10.1007/s00894-024-06108-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 08/08/2024] [Indexed: 08/23/2024]
Abstract
CONTEXT This work analyzes the isomerization effects and solvent contributions to the stability, electronic excitations, reactivity, and non-linear optical properties (NLO) of resveratrol molecules within the formalism of the Density Functional Theory. The findings suggest that resveratrol solvatochromism is significantly influenced by solvent polarization. The electronic and free energies (E and G) indicate that trans is the most stable conformer. The system is classified as a strong nucleophile. However, the analysis of the Fukui functions and the Mulliken charges indicate that cis-trans isomerization jointly affects the reactive indices of the carbon and hydrogen atoms. The results also suggest that solvent is relevant to solvatochromism and the NLO response. Both cis and trans conformers present strong π - π ∗ excitations that undergo a visible hypsochromic change when the polarity of the solvent increases. Once the absorption spectra are connected to the first hyperpolarization ( β ) by the Oudar and Chemla relation, the hypsochromism of resveratrol is the reason for the drop in the generation of the second harmonic when the ambient polarity decreases. The CAM-B3LYP DFT results suggest that resveratrol is interesting for NLO applications. Depending on the choice of solvent, values ∼ 50 times those observed for urea ( β = 0.34 × 10 - 34 esu), which is a standard NLO material. METHODS The optimized geometries of cis and trans isomers of resveratrol in vacuum were obtained using Density Functional Theory (DFT) with the hybrid exchange-correlation function (CAM-B3LYP) and Pople basis set functions, specifically 6-311++G(d,p). The solvent effect on the geometries of both isomers was included using the polarizable continuum model (PCM) with the same level of QM calculation. Vibrational analysis was conducted to confirm that all optimized geometries correspond to the minimum energy. Various electronic properties, including dipole moments, molecular orbitals, transition energy, dipole polarizabilities, and global reactivity parameters, were calculated using both continuum and discrete solvation models based on the sequential QM/MM methodology. All QM calculations were performed with the Gaussian 09 program and the MC simulations with the DICE program. All NLO analysis was carried out using the Multiwfn code.
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Affiliation(s)
- Igo T Lima
- Coordenação do Bacharelado Interdisciplinar em Ciência e Tecnologia, Campus Dom Delgado, Universidade Federal do Maranhão, UFMA, São Luís, MA, Brazil
| | - Ramon F C Gomes
- Coordenação do Bacharelado Interdisciplinar em Ciência e Tecnologia, Campus Dom Delgado, Universidade Federal do Maranhão, UFMA, São Luís, MA, Brazil
| | - Edson N C Paura
- Universidade Federal do Maranhão, UFMA, Campus Balsas, Balsas, MA, Brazil
| | - Patricio F Provasi
- Department of Physics, IMIT, Northeastern University, CONICET, AV. Libertad 5500, W 3404 AAS, Corrientes, Argentina
| | - Rodrigo Gester
- Faculdade de Física, Universidade Federal do Sul e Sudeste do Pará, UNIFESSPA, Marabá, PA, Brazil
- Instituto de Física, Universidade de São Paulo, USP, Rua do Matão 1371, São Paulo, SP, Brazil
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Marinescu M, Popa CV, Tănase MA, Soare AC, Tablet C, Bala D, Cinteza LO, Diţu LM, Gifu IC, Petcu C. Synthesis, Characterization, DFT Study and Antifungal Activities of Some Novel 2-(Phenyldiazenyl)phenol Based Azo Dyes. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8162. [PMID: 36431651 PMCID: PMC9695727 DOI: 10.3390/ma15228162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
In recent decades, there has been an increased interest in azo compounds with special optical and biological properties. In this work, we report the preparation of novel azo-compounds with two and three -N=N- double bonds, using the classical method of synthesis, diazotization and coupling. The compounds were characterized by 1H-NMR, 13C-NMR, FTIR, UV-VIS and fluorescence spectra. DFT calculations were employed for determining the optical parameters, polarizability α, the total static dipole moment μtot, the quadrupole moment Q and the mean first polarizability βtot. All azo derivatives show strong fluorescence emission in solutions. The antioxidant and antifungal activities were determined and the influence of the number of azo bonds was discussed. The synthesized compounds exhibit remarkable efficiency in the growth reduction of standard and clinical isolated Candida strains, suggesting future applications as novel antifungal.
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Affiliation(s)
- Maria Marinescu
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90 Soseaua Panduri, 050663 Bucharest, Romania
| | - Claudia Valentina Popa
- Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90 Soseaua Panduri, 050663 Bucharest, Romania
- Laboratory of Pharmaco-Toxicology, National Institute for Medical Military Research Development “Cantacuzino”, 103 Splaiul Independentei, 050096 Bucharest, Romania
| | - Maria Antonia Tănase
- Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, 4-12 Blv. Regina Elisabeta, 030018 Bucharest, Romania
| | - Andreia Cristina Soare
- Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, 4-12 Blv. Regina Elisabeta, 030018 Bucharest, Romania
| | - Cristina Tablet
- Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, 4-12 Blv. Regina Elisabeta, 030018 Bucharest, Romania
- Faculty of Pharmacy, Titu Maiorescu University, 16 Gh. Sincai Blvd, 040317 Bucharest, Romania
| | - Daniela Bala
- Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, 4-12 Blv. Regina Elisabeta, 030018 Bucharest, Romania
| | - Ludmila Otilia Cinteza
- Physical Chemistry Department, Faculty of Chemistry, University of Bucharest, 4-12 Blv. Regina Elisabeta, 030018 Bucharest, Romania
| | - Lia Mara Diţu
- Microbiology Department, Faculty of Biology, University of Bucharest, 3 Intrarea Portocalelor, 60101 Bucharest, Romania
| | - Ioana Catalina Gifu
- Polymer Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Cristian Petcu
- Polymer Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
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Electronic, non-linear optical, optoelectronic, and thermodynamic properties of undoped and doped bis (ethylenedithio) tetraselenafulvalene (BETS) (C 10H 8S 4Se 4) molecule: first study using ab initio investigation. J Mol Model 2022; 28:256. [PMID: 35971007 DOI: 10.1007/s00894-022-05250-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/26/2022] [Indexed: 10/15/2022]
Abstract
We have performed the ab initio calculation of the undoped and doped molecules bis (ethylenedithio) tetraselenafulvalene (BETS). Carbone (C) atoms have been substituted by Boron (B) to investigate their effects on the electronic structure and nonlinear optical, optoelectronic, and thermodynamic properties of BETS molecule. The RHF and hybrid density functional theories (WB97XD, B3PW91, and B3LYP) methods were applied, using the cc-pVDZ basis set. We found that the energy gap (Egap) of the doped molecules are respectively 2.476 eV and 2.569 eV for C8B2H8S4Se4 and C7B3H8S4Se4 with B3LYP/cc-pVDZ basis set, lower than one of the undoped molecule (3.316 eV). The significant increase values of polarizability (˂α˃) and first order hyperpolarizability (β) of the doped compounds, especially in C8B2H8S4Se4 (< α > = 4.5315 × 10-23 esu, β = 22,672.27 × 10-33 esu and < α > = 4.518 × 10-23 esu, β = 23,657.43 × 10-33 esu respectively for B3LYP and B3PW91) compared to those of the undoped molecule (< α > = 4.3602 × 10-23 esu, β = 1290.38 × 10-33 esu, and < α > = 4.518 × 10-23 esu) show that the new molecules have a good nonlinear optical property. Results suggest that these molecules doped with boron are a potential candidate as semiconductors compounds and nonlinear optical materials.
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ElGuesmi N, Farghaly TA, Khormi AY, Shaaban MR, Katin KP, Kaya S. Synthesis and spectral properties of novel series of fluorene-based azo dyes containing thiazole scaffold: studying of the solvent and substituent effect on absorption spectra. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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A DFT analysis of electronic, reactivity, and NLO responses of a reactive orange dye: the role of Hartree-Fock exchange corrections. J Mol Model 2022; 28:85. [PMID: 35377023 DOI: 10.1007/s00894-022-05035-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/19/2022] [Indexed: 10/18/2022]
Abstract
An experimental and theoretical study based on DFT/TD-DFT approximations is presented to understand the nature of electronic excitations, reactivity, and nonlinear optical (NLO) properties of reactive orange 16 dye (RO16), an azo chromophore widely used in textile and pharmacological industries. The results show that the solvent has a considerable influence on the electronic properties of the material. According to experimental results, the absorption spectrum is formed by four intense transitions, which have been identified as [Formula: see text] states using TD-DFT calculations. However, the TD-DFT results reveal a weak [Formula: see text] in the low-lying spectral region. Continuum models of solvation indicate that these states suffer from bathochromic (ca. 15 nm) and hypsochromic shifts (ca. 4 nm), respectively. However, the expected blue shift for the absorption [Formula: see text] is only described using long-range or dispersion-corrected DFT methods. RO16 is classified as a strong electrophilic system, with electrophilicity ω > 1.5 eV. Concerning the nucleophilicity parameter (N), from vacuum to solvent, the environment is active and changes the nucleophilic status from strong to moderate nucleophile (2.0 ≤ N ≤ 3.0 eV). The results also suggest that all electrical constants are strongly dependent on long-range and Hartree-Fock exchange contributions, and the absence of these interactions gives results far from reality. In particular, the results for the NLO response show that the chromophore presents a potential application in this field with a low refractive index and first hyperpolarizability ca. 214 times bigger than the value usually reported for urea (β = 0.34 × 10- 30 esu), which is a standard NLO material. Concerning the solvent effects, the results indicate that the polarizability increases [Formula: see text] esu from gas to solvent while the first hyperpolarizability is calculated as [Formula: see text] esu, ca. 180%, regarding the vacuum. The results suggest RO16 is a potential compound in NLO applications. Graphical Abstract The frontier molecular orbitals, and the inverse relation between the energy-gap (Egap) and the first hyperpolarizability (β).
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Siqueira Y, Lyra ML, Ramos TN, Champagne B, Manzoni V. Unveiling the relationship between structural and polarization effects on the first hyperpolarizability of a merocyanine dye. J Chem Phys 2022; 156:014305. [PMID: 34998341 DOI: 10.1063/5.0076490] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The nonlinear optical response, more specifically the Hyper-Rayleigh Scattering (HRS) response of the Brooker's merocyanine, has been calculated at the time-dependent density functional theory level and rationalized in terms of the structural changes and polarization effects induced by applied external electric fields. The structural change leads to large changes in the HRS response, while only slight variations were observed due to the polarization effects on the fixed quinoid form. Considering both structural and polarization contributions concurrently, the HRS response is dominated by cooperative behavior of those effects for weak and intermediate electric field strengths. At the same time, the competition between both effects was a crucial factor in the region of strong electric fields. The obtained results can lead to an easier understanding for upcoming studies considering more realistic models of solvents where it is not simple to disentangle these contributions.
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Affiliation(s)
- Ysmailyn Siqueira
- Instituto de Física, Universidade Federal de Alagoas, UFAL, 57072-970 Maceió, AL, Brazil
| | - Marcelo L Lyra
- Instituto de Física, Universidade Federal de Alagoas, UFAL, 57072-970 Maceió, AL, Brazil
| | - Tárcius N Ramos
- Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, NISM (Namur Institute of Structured Matter), University of Namur, rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - Benoît Champagne
- Theoretical Chemistry Lab, Unit of Theoretical and Structural Physical Chemistry, NISM (Namur Institute of Structured Matter), University of Namur, rue de Bruxelles, 61, B-5000 Namur, Belgium
| | - Vinícius Manzoni
- Instituto de Física, Universidade Federal de Alagoas, UFAL, 57072-970 Maceió, AL, Brazil
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Andrade-Filho T, Silva T, Belo E, Raiol A, de Oliveira RV, Marinho PS, Bitencourt HR, Marinho AM, da Cunha AR, Gester R. Insights and modelling on the nonlinear optical response, reactivity, and structure of chalcones and dihydrochalcones. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rodrigues A, Silva S, Oliveira M, de Oliveira G, Novais A, de Paula G, Souza D, Belo E, Gester R, Andrade-Filho T. Prediction of electronic and vibrational properties of poly (hexamethylene biguanide) hydrochloride: A combined theoretical and experimental investigation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gester R, Torres A, da Cunha AR, Andrade-Filho T, Manzoni V. Theoretical study of thieno[3,4-b]pyrazine derivatives with enhanced NLO response. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138976] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Raiol A, da Cunha AR, Manzoni V, Andrade-Filho T, Gester R. Solvent enhancement and isomeric effects on the NLO properties of a photoinduced cis-trans azomethine chromophore: A sequential MC/QM study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116887] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Manzoni V, Gester R, da Cunha AR, Andrade-Filho T, Gester R. Solvent effects on Stokes shifts, and NLO response of thieno[3,4-b]pyrazine: A comprehensive QM/MM investigation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115996] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Experimental and theoretical spectroscopic characterization, NLO response, and reactivity of the pharmacological agent spilanthol and analogues. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129423] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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