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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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Verma VA, Saundane AR, Shamrao R, Meti RS, Shinde VM. Novel indolo [3,2-c]isoquinoline-5-one-6-yl [1,2,4]triazolo [3,4-b] [1,3,4]thiadiazole analogues: Design, synthesis, anticancer activity, docking with SARS-CoV-2 Omicron protease and MESP/TD-DFT approaches. J Mol Struct 2022; 1264:133153. [DOI: 10.1016/j.molstruc.2022.133153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/31/2022] [Accepted: 04/16/2022] [Indexed: 11/29/2022]
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3
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A comprehensive investigation of structural features, electron delocalization, optoelectronic and anti-corrosion characteristics in furan oligomers by DFT/TDDFT method. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02760-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Dumur F. Recent advances on visible light photoinitiators of polymerization based on Indane-1,3-dione and related derivatives. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110178] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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5
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Antiradical Properties of trans-2-(4-substituted-styryl)-thiophene. J Fluoresc 2020; 31:51-61. [PMID: 33057974 DOI: 10.1007/s10895-020-02629-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/05/2020] [Indexed: 11/27/2022]
Abstract
2-substituted thiophene compounds with electron donating and electron withdrawing p-phenyl substitution were synthesized and studied their radical scavenging properties using DPPH assay and DFT method. It is shown that p-hydroxy and p-amino phenyl substituted compound exhibit radical scavenging activity. From DFT and radical scavenging studies, a correlation between IC50 with the bond dissociation enthalpy, proton affinity, ground state dipole moment and optical band gap of compound is found. Compounds 1-3 with electron withdrawing substituent (NO2, CN, Cl) do not show any radical scavenging properties, whereas compounds 6-7 with electron donating substituent (OH, NH2) show antiradical properties. Further, the antiradical activity is reduced drastically by replacing the -OH and -NH2 with methoxy and -N-alkylating group respectively in 6 and 7. The compound with p-hydroxy phenyl substitution, exhibits stronger antiradical activity as compared to the p-amino phenyl substitution due to smaller O-H bond dissociation energy as compared to the N-H bond. From DPPH and DFT studies, it is suggested that the radical scavenging activity in 2-substituted thiophene is occurred through proton transfer mechanism. The other possible SET, SPLET mechanisms are also corroborated. Graphical Abstract Antiradical properties of trans-2-(4-substituted-styryl)-thiophene Anamika Gusain, Naresh Kumar, Jagdeep Kumar, Gunjan Pandey, Prasanta Kumar Hota.
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Kumar J, Kumar N, Hota PK. Optical properties of 3-substituted indoles. RSC Adv 2020; 10:28213-28224. [PMID: 35519093 PMCID: PMC9055839 DOI: 10.1039/d0ra05405d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 07/23/2020] [Indexed: 11/21/2022] Open
Abstract
The optical properties of various donor or acceptor p-phenyl substituted ethenyl indoles were studied in solvents of varying polarity using absorption, fluorescence and TDDFT methods. Ethenyl indole exhibits non-linear optical properties (NLO) in a substituent dependent manner. Compound with a strong electron-attracting substituent, shows large NLO properties with charge transfer behavior, whereas ethenyls with moderate electron withdrawing or electron donating substituent exhibit lower NLO properties with non polar excited state. A highly dipolar excited state for p-nitro phenyl substituted ethenyl indoles (μ e: 18.2-27.1 debye; Δμ: 9.4-17.8 debye) is observed as compared to other ethenyls (μ e: 6.6-9.5 debye; Δμ: 4.2-6.2 debye). From TDDFT study, it is shown that the HOMO-LUMO energy of ethenyl is increased with increasing the electron donating ability of the p-phenyl substitution. The optical band gap of ethenyl 3 without substitution, is decreased upon p-phenyl substitution either with an electron withdrawing (Cl, NO2) or an electron donating (OCH3, OH, NH2) substituent. The compound with a strong electron accepting, p-nitrophenyl ethenyl indole 1 shows 12 times better NLO response as compared to the reference ethenyl indole 3 (β: 1: 115 × 10-30 esu-1 cm5, 3: 9 × 10-30 esu-1 cm5). Ethenyls 2-6 bearing a weak or moderately electron withdrawing or electron accepting substituent, exhibit lower NLO response. The β of ethenyl is increased with increasing the order of electron withdrawing nature of phenyl ring. Overall, a correlation of β with the optical band gap, ground state dipole moment, % of charge transfer in the ground and excited state is found.
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Affiliation(s)
- Jagdeep Kumar
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University Srinagar (Garhwal) Uttarakhand 246174 India
| | - Naresh Kumar
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University Srinagar (Garhwal) Uttarakhand 246174 India
| | - Prasanta Kumar Hota
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University Srinagar (Garhwal) Uttarakhand 246174 India
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Pigot C, Noirbent G, Brunel D, Dumur F. Recent advances on push–pull organic dyes as visible light photoinitiators of polymerization. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109797] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kumar J, Kumar N, Sati N, Hota PK. Antioxidant properties of ethenyl indole: DPPH assay and TDDFT studies. NEW J CHEM 2020. [DOI: 10.1039/d0nj01317j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Ethenyl indole exhibits antioxidant activity in a substituent dependent manner. Ethenyls bearing strong electron withdrawing substituents show weak or no antioxidant activities, whereas ethenyls with electron donating substituents exhibit antioxidant properties comparable to vitamin E.
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Affiliation(s)
- Jagdeep Kumar
- Department of Chemistry
- School of Sciences
- Hemvati Nandan Bahuguna Garhwal University
- Srinagar (Garhwal)
- India
| | - Naresh Kumar
- Department of Chemistry
- School of Sciences
- Hemvati Nandan Bahuguna Garhwal University
- Srinagar (Garhwal)
- India
| | - Nitin Sati
- Department of Pharmaceutical Sciences
- School of Sciences
- Hemvati Nandan Bahuguna Garhwal University
- Srinagar (Garhwal)
- India
| | - Prasanta Kumar Hota
- Department of Chemistry
- School of Sciences
- Hemvati Nandan Bahuguna Garhwal University
- Srinagar (Garhwal)
- India
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Kumar N, Paramasivam M, Kumar J, Gusain A, Hota PK. Tuning of optical properties of p-phenyl ethenyl-E-furans: A Solvatochromism and Density functional theory. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:396-404. [PMID: 30172237 DOI: 10.1016/j.saa.2018.08.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/13/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
p-Phenyl ethenyl-E-furans (1-6) with varied electron donor and acceptor substituent (NO2, CN, Cl, H, OCH3, NH2) were synthesized and studied the substituent induced optical properties (dipole moment, transition dipole moment, oscillator strength, optical band gap, hyperpolarizability) using Solvatochromism and Density functional theory. It is shown that furan acts as a weak electron donor in presence of an electron withdrawing p‑phenyl substituent (NO2, CN, Cl), whereas furan acts as a weak electron acceptor in presence of an electron donating p‑phenyl substituent (OCH3, NH2). In comparison to ethenylfuran 4, the HOMO-LUMO energy band gap is decreased upon increasing the electron donating or electron withdrawing nature of the phenyl ring. Calculation of excited state dipole moment and polarizability of 1-6 in solvent of varying polarity suggest that the nitro and amino compounds (1, 6) exhibit charge transfer excited state, whereas excited state of compounds 3-5 is non-polar in nature. As compared to the ethenylfuran (4), the first hyperpolarizability (β) is increased in presence of a strong electron withdrawing or strong electron donating p‑phenyl substituent. The higher β value is found for ethenylfuran with p‑nitrophenyl and p‑amino phenyl substitution. Overall, these studies provide useful information in tuning the optical properties of p‑phenyl substituted heterocyclic ethenyl systems.
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Affiliation(s)
- Naresh Kumar
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Campus, Pauri (Garhwal) 246 174, Uttarakhand, India
| | - Mahalingavelar Paramasivam
- Department of Advanced Materials Chemistry, College of Sciences and Technology, Korea University, 2511 Sejong-ro, Jochiwon, Sejong 339700, Republic of Korea
| | - Jagdeep Kumar
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Campus, Pauri (Garhwal) 246 174, Uttarakhand, India
| | - Anamika Gusain
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Campus, Pauri (Garhwal) 246 174, Uttarakhand, India
| | - Prasanta Kumar Hota
- Department of Chemistry, School of Sciences, Hemvati Nandan Bahuguna Garhwal University (A Central University), Srinagar Campus, Pauri (Garhwal) 246 174, Uttarakhand, India.
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Recent Advances on Nitrofluorene Derivatives: Versatile Electron Acceptors to Create Dyes Absorbing from the Visible to the Near and Far Infrared Region. MATERIALS 2018; 11:ma11122425. [PMID: 30513594 PMCID: PMC6316944 DOI: 10.3390/ma11122425] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 12/22/2022]
Abstract
Push–pull dyes absorbing in the visible range have been extensively studied so that a variety of structures have already been synthesized and reported in the literature. Conversely, dyes absorbing in the near and far infrared region are more scarce and this particularity relies on the following points: difficulty of purification, presence of side-reaction during synthesis, low availability of starting materials, and low reaction yields. Over the years, several strategies such as the elongation of the π-conjugated spacer or the improvement of the electron-donating and accepting ability of both donors and acceptors connected via a conjugated or an aliphatic spacer have been examined to red-shift the absorption spectra of well-established visible dyes. However, this strategy is not sufficient, and the shift often remains limited. A promising alternative consists in identifying a molecule further used as an electron-accepting group and already presenting an absorption band in the near infrared region and to capitalize on its absorption to design near and far infrared absorbing dyes. This is the case with poly(nitro)fluorenes that already exhibit such a contribution in the near infrared region. In this review, an overview of the different dyes elaborated with poly(nitro)fluorenes is presented. The different applications where these different dyes have been used are also detailed.
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Fedorchuk A, Slyvka Y, Goreshnik E, Kityk I, Czaja P, Mys’kiv M. Crystal structure and NLO properties of the novel tetranuclear copper(I) chloride π-complex with 3-allyl-2-(allylimino)-1,3-thiazolidin-4-one. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12
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Deng G, Chun X, Li Z, Zhang X, Yang Y, Huo F, Zhang G, Fedorchuk A, Kityk I. Synthesis and features of nonlinear optical switches based on dithienylethene unit. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Substituent Dependent Optical Properties of p-phenyl Substituted ethenyl-E-thiophenes. J Fluoresc 2018; 28:1207-1216. [PMID: 30151739 DOI: 10.1007/s10895-018-2284-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 08/20/2018] [Indexed: 12/27/2022]
Abstract
Various electron donor and acceptor substituted (NO2, CN, Cl, H, OCH3, NH2) p-phenyl ethenyl-E- thiophenes (1-6) were synthesized and substituent dependent optical properties (dipole moment, transition dipole moment, oscillator strength, optical band gap, hyperpolarizability) were studied using Solvatochromism and Density functional theory. It is shown that thiophene acts as a weak electron donor in presence of an electron withdrawing p-phenyl substituent (NO2, CN, Cl), whereas thiophene acts as a weak electron acceptor in presence of an electron donating p-phenyl substituent (OCH3, NH2). In comparison to ethenyl thiophene 4, the HOMO-LUMO energy band gap is decreased upon increasing the electron donating or electron withdrawing capacity of p-phenyl substituent. From the excited state dipole moment calculation, it is shown that the excited state is highly dipolar for nitro and amino compounds 1 and 6, whereas compounds 2-5 show a non-polar excited state. As compared to the ethenyl thiophene 4, the first hyperpolarizability (β) increases upon substitution either with a strong electron withdrawing or strong electron donating p-phenyl substituent. A large β value is found for p-nitro phenyl ethenyl-E-thiophene and p-amino phenyl ethenyl-E- thiophene. Overall, these studies provide useful information in understanding the optical properties of phenyl and heterocyclic based ethenyl systems.
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A novel copper(I) sulfamate π-complex based on the 5-(allylthio)-1-(3,5-dimethylphenyl)-1H-tetrazole ligand: Alternating-current electrochemical crystallization, DFT calculations, structural and NLO properties studies. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Klikar M, Solanke P, Tydlitát J, Bureš F. Alphabet-Inspired Design of (Hetero)Aromatic Push-Pull Chromophores. CHEM REC 2016; 16:1886-905. [PMID: 27272649 DOI: 10.1002/tcr.201600032] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Indexed: 12/19/2022]
Abstract
Push-pull molecules represent a unique and fascinating class of organic π-conjugated materials. Herein, we provide a summary of their recent extraordinary design inspired by letters of the alphabet, especially focusing on H-, L-, T-, V-, X-, and Y-shaped molecules. Representative structures from each class were presented and their fundamental properties and prospective applications were discussed. In particular, emphasis is given to molecules recently prepared in our laboratory with T-, X-, and Y-shaped arrangements based on indan-1,3-dione, benzene, pyridine, pyrazine, imidazole, and triphenylamine. These push-pull molecules turned out to be very efficient charge-transfer chromophores with tunable properties suitable for second-order nonlinear optics, two-photon absorption, reversible pH-induced and photochromic switching, photocatalysis, and intercalation.
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Affiliation(s)
- Milan Klikar
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic
| | - Parmeshwar Solanke
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic
| | - Jiří Tydlitát
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic
| | - Filip Bureš
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic
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Arcos WA, Guimarães RR, Insuasty B, Araki K, Ortiz A. Structural effects on the photoelectrochemical properties of new push-pull dyes based on vinazene acceptor triphenylamine donor. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Marcano E, Squitieri E, Murgich J, Soscún H. Theoretical investigation of the static (hyper)polarizabilities and reorganization energy of 4,5-dicyanoimidazole chromophore and derivatives containing benzene rings and a saturated bridge. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2015.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Gajalakshmi D, Solomon RV, Tamilmani V, Boobalan M, Venuvanalingam P. A DFT/TDDFT mission to probe push–pull vinyl coupled thiophene oligomers for optoelectronic applications. RSC Adv 2015. [DOI: 10.1039/c5ra01466b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
VCTO encompassing pull–pull and push–pull categories has been appraised for fine tuning of band gaps and optoelectronic application through DFT/TDDFT calculations.
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Affiliation(s)
- Duraikannu Gajalakshmi
- Department of Chemistry
- University College of Engineering Villupuram (A Constituent College of Anna University, Chennai)
- India
| | - Rajadurai Vijay Solomon
- Theoretical and Computational Chemistry Laboratory
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli-620024
- India
| | - Venkatachalam Tamilmani
- Department of Chemistry
- University College of Engineering Ariyalur (A Constituent College of Anna University, Chennai)
- India
| | | | - Ponnambalam Venuvanalingam
- Theoretical and Computational Chemistry Laboratory
- School of Chemistry
- Bharathidasan University
- Tiruchirappalli-620024
- India
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García G, Adamo C, Ciofini I. Evaluating push-pull dye efficiency using TD-DFT and charge transfer indices. Phys Chem Chem Phys 2014; 15:20210-9. [PMID: 24162782 DOI: 10.1039/c3cp53740d] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The performances of different functionals in the prediction of Charge Transfer excitations (CT) have been assessed, both in terms of quantitative agreement with experimental absorption data and on the basis of a recently developed density based diagnostic index, for a family of 18 recently synthesized push-pull compounds, containing 4-5-dicyannoimidazole (DCI) as an acceptor moiety, six different bridges and three different donor groups. The index used also allows obtaining an estimate of the charge transferred upon excitation (qCT) and of the spatial extent associated with a given electronic transition (DCT). From the computed values of these indices an estimate of the transition energy considering a purely electrostatic model (wCT) can be computed and compared to that expected for an ideal CT between the donor and the acceptor, thus enabling us to estimate the efficiency of the CT transition for the different push-pull systems.
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Affiliation(s)
- Gregorio García
- Laboratoire d'Electrochimie, Chimie des Interfaces et Modélisation pour l'Energie, CNRS UMR-7575, Chimie ParisTech, 11 rue P. et M. Curie, F-75231 Paris Cedex 05, France.
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Aziz SG, Elroby SA, Hilal RH, Osman OI. Theoretical and computational studies of conformation, natural bond orbital and nonlinear optical properties of cis-N-phenylbenzohydroxamic acid. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2013.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nano A, Ziessel R, Stachelek P, Harriman A. Charge-Recombination Fluorescence from Push-Pull Electronic Systems Constructed around Amino-Substituted Styryl-BODIPY Dyes. Chemistry 2013; 19:13528-37. [DOI: 10.1002/chem.201301045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 06/14/2013] [Indexed: 11/11/2022]
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Balakina MY. Nonlinear optical response of a polymer electret with incorporated organic chromophores. Chemphyschem 2012; 13:4186-94. [PMID: 23281024 DOI: 10.1002/cphc.201200641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/25/2012] [Indexed: 11/07/2022]
Abstract
An analytical approach aimed at modeling the nonlinear optical (NLO) response of a polymer electret with incorporated organic dipole chromophores is extended to the dynamic case. The approach allows the effect of the locally anisotropic, polarizable, deformable polymer matrix on the chromophore NLO response to be accounted for. The method exploits the original cavity ansatz according to which the virtual cavity occupied by the chromophore in the polymer matrix is chosen to be conformal to the characteristic ellipsoid of the generalized permittivity tensor. Analytical expressions for the dynamic electric moments of dipole chromophores and macroscopic polarization of a polymer electret at fundamental and second harmonic frequencies are obtained by using a computational scheme based on two self-consistency procedures. On the basis of the expressions for dynamic macroscopic polarization, the analytical formulas for linear, chi(j)(i(1)) (omega), and quadratic, chi(jk)(i(2)) (2omega), electric susceptibilities are obtained. The presented expressions establish the relationship between the molecular polarizabilities of chromophores and the macroscopic electrical properties of the polymer electret.
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Affiliation(s)
- Marina Yu Balakina
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, 420088 Kazan (Russia), Fax: (+7) 843-273-22-53.
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Kulhánek J, Bureš F, Kuznik W, Kityk IV, Mikysek T, Růžička A. Ferrocene-Donor and 4,5-Dicyanoimidazole-Acceptor Moieties in Charge-Transfer Chromophores with π Linkers Tailored for Second-Order Nonlinear Optics. Chem Asian J 2012. [DOI: 10.1002/asia.201200963] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Schäfer J, Scheurer M, Speiser B, Kuźnik W, Kityk IV. Electrochemistry and DFT simulation of optical spectra of N-ferrocenoyl-N'-ω-decenoyl-ethylenediamine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 95:193-198. [PMID: 22634409 DOI: 10.1016/j.saa.2012.04.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 03/28/2012] [Accepted: 04/05/2012] [Indexed: 06/01/2023]
Abstract
A new hybrid organic-inorganic chromophore based on ferrocene was synthesized. In addition to a detailed synthesis description the article describes complex quantum chemical and experimental (UV-VIS and electrochemical) studies of the redox and chromophore characteristics. The properties studied include the diffusion coefficient as well as solvatochromic effects in solvents differing in polarity, namely dichloromethane, propylene carbonate and acetonitrile. The experimental results are discussed within a framework of theoretical description at the DFT and TDDFT (6-31G(df,p)) levels of theory, with the PCM solvation model. Accuracy of B3LYP and BLYP functionals in reproducing orbital energy levels and optical transitions of the title molecule is briefly discussed.
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Affiliation(s)
- Judith Schäfer
- Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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Solomon RV, Veerapandian P, Vedha SA, Venuvanalingam P. Tuning Nonlinear Optical and Optoelectronic Properties of Vinyl Coupled Triazene Chromophores: A Density Functional Theory and Time-Dependent Density Functional Theory Investigation. J Phys Chem A 2012; 116:4667-77. [DOI: 10.1021/jp302276w] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. Vijay Solomon
- Theoretical & Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, India
| | - P. Veerapandian
- Theoretical & Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, India
| | - S. Angeline Vedha
- Theoretical & Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, India
| | - P. Venuvanalingam
- Theoretical & Computational Chemistry Laboratory, School of Chemistry, Bharathidasan University, Tiruchirappalli-620024, India
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Spectral Properties of Y-Shaped Donor-Acceptor Push-Pull Imidazole-based Fluorophores: Comparison between Solution and Polymer Matrices. J Fluoresc 2012; 22:1165-76. [DOI: 10.1007/s10895-012-1056-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 04/04/2012] [Indexed: 10/28/2022]
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Kulhánek J, Bureš F. Imidazole as a parent π-conjugated backbone in charge-transfer chromophores. Beilstein J Org Chem 2012; 8:25-49. [PMID: 22423270 PMCID: PMC3302086 DOI: 10.3762/bjoc.8.4] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 12/13/2011] [Indexed: 11/23/2022] Open
Abstract
Research activities in the field of imidazole-derived push-pull systems featuring intramolecular charge transfer (ICT) are reviewed. Design, synthetic pathways, linear and nonlinear optical properties, electrochemistry, structure-property relationships, and the prospective application of such D-π-A organic materials are described. This review focuses on Y-shaped imidazoles, bi- and diimidazoles, benzimidazoles, bis(benzimidazoles), imidazole-4,5-dicarbonitriles, and imidazole-derived chromophores chemically bound to a polymer chain.
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Affiliation(s)
- Jiří Kulhánek
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, CZ-53210, Czech Republic
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Bureš F, Čermáková H, Kulhánek J, Ludwig M, Kuznik W, Kityk IV, Mikysek T, Růžička A. Structure-Property Relationships and Nonlinear Optical Effects in Donor-Substituted Dicyanopyrazine-Derived Push-Pull Chromophores with Enlarged and Varied π-Linkers. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101226] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Makowska-Janusik M, Kityk IV, Kulhánek J, Bureš F. Peculiarities of the Environmental Influence on the Optical Properties of Push–Pull Nonlinear Optical Molecules: A Theoretical Study. J Phys Chem A 2011; 115:12251-8. [DOI: 10.1021/jp2013539] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Makowska-Janusik
- Institute of Physics, Jan Dlugosz University, Armii Krajowej 13/15, Czestochowa, Poland
| | - I. V. Kityk
- Electrical Engineering Department, Czestochowa University of Technology, Armii Krajowej 17, Czestochowa, Poland
| | - J. Kulhánek
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573 Pardubice, Czech Republic
| | - F. Bureš
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573 Pardubice, Czech Republic
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Ivanova BB, Spiteller M. Physical optical properties and crystal structures of organic 5-sulfosalicylates – Theoretical and experimental study. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.06.043] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Plaquet A, Champagne B, Kulhánek J, Bureš F, Bogdan E, Castet F, Ducasse L, Rodriguez V. Effects of the nature and length of the π-conjugated bridge on the second-order nonlinear optical responses of push-pull molecules including 4,5-dicyanoimidazole and their protonated forms. Chemphyschem 2011; 12:3245-52. [PMID: 21830291 DOI: 10.1002/cphc.201100299] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Indexed: 11/09/2022]
Abstract
Theoretical and experimental methods of characterization have been employed to investigate a series of six push-pull molecules containing a 4,5-dicyanoimidazole acceptor (A) unit, a N,N-dimethylamino donor (D) group, and systematically enlarged π-conjugated linkers (π) with the view of assessing their first hyperpolarizabilities (β) as well as their variations upon protonation. The results demonstrated that protonation occurred at the N,N-dimethylamino function, which led to disruption of the electronic charge-transfer delocalization: the A-π-D pattern of the neutral species with large β values was transformed into an A-π-A' pattern, which displayed much smaller β values. This feature makes these systems applicable as pH-triggered nonlinear optics (NLO) switches. In particular, protonation led to a decrease of the hyper-Rayleigh scattering first hyperpolarizabilities by at least one order of magnitude as well as to a decrease of the depolarization ratio, from about five for neutral species, which also supported the 1D-like NLO-phore nature, to about two for the protonated ones.
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Affiliation(s)
- Aurélie Plaquet
- Laboratoire de Chimie Théorique (LCT), Unité de Chimie Physique Théorique et Structurale, Facultés Universitaires Notre-Dame de la Paix (FUNDP), Rue de Bruxelles, 61, B-5000 Namur, Belgium
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Ben Ahmed A, Elleuch N, Feki H, Abid Y, Minot C. Vibrational spectra and non linear optical proprieties of L-histidine oxalate: DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:554-561. [PMID: 21530379 DOI: 10.1016/j.saa.2011.03.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 02/28/2011] [Accepted: 03/11/2011] [Indexed: 05/30/2023]
Abstract
This paper presents the results of our calculations on the geometric parameters, vibrational spectra and hyperpolarizability of a nonlinear optical material L-histidine oxalate. Due to the lack of sufficiently precise information on geometric structure in literature, theoretical calculations were preceded by re-determination of the crystal X-ray structure. Single crystal of L-histidine oxalate has been growing by slow evaporation of an aqueous solution at room temperature. The compound crystallizes in the non-Centro symmetric space group P2(1)2(1)2(1) of orthorhombic system. The FT-IR and Raman spectra of L-histidine oxalate were recorded and analyzed. The vibrational wave numbers were examined theoretical with the aid of Gaussian98 package of programs using the DFT//B3LYP/6-31G(d) level of theory. The data obtained from vibrational wave number calculations are used to assign vibrational bands obtained in IR and Raman spectroscopy of the studied compound. The geometrical parameters of the title compound are in agreement with the values of similar structures. To investigate microscopic second order non-linear optical NLO behaviour of the examined complex, the electric dipole μ(tot), the polarizability α(tot) and the hyperpolarizability β(tot) were computed using DFT//B3LYP/6-31G(d) method. According to our calculation, the title compound exhibits non-zero β(tot) value revealing microscopic second order NLO behaviour.
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Affiliation(s)
- A Ben Ahmed
- Laboratoire de Physique Appliquée, Faculté des Sciences, BP 802, Sfax 3018, Tunisia.
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Kulhánek J, Bureš F, Pytela O, Mikysek T, Ludvík J. Imidazole as a Donor/Acceptor Unit in Charge-Transfer Chromophores with Extended π-Linkers. Chem Asian J 2011; 6:1604-12. [DOI: 10.1002/asia.201100097] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Indexed: 12/22/2022]
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