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Mandal U, Beg H, Misra A. Effect of charge transfer on the first hyper-polarizability of N,N-dimethylaniline and julolidine: a DFT based comparative study. J Mol Model 2023; 29:351. [PMID: 37889349 DOI: 10.1007/s00894-023-05755-6] [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: 05/22/2023] [Accepted: 10/13/2023] [Indexed: 10/28/2023]
Abstract
CONTEXT Quantum mechanical calculations involving electron correlation, frequency dispersion, and solvent effects were carried out to examine the second-order nonlinear optical response of various acceptor, X (-CF3, -CN, -NO2) substituted in N,N-dimethylaniline (DMA) and julolidine(JLD). Here, both DMA and JLD acts as donor and the three substituted groups, X (-CF3, -CN and -NO2) at the para position of both the ring systems as acceptor. The NLO response (βHRS) of -CF3 and -CN substituted DMA and JLD is relatively lower compared to DMA-NO2 and JLD-NO2. The charge distribution is found higher in case of -NO2 substituted DMA and JLD (±443 and ±449) compared to their -CF3 or -CN substitution. Electronic characteristics such as UV-Vis absorption spectra, crucial excited state parameters and charge transfer contribution to βHRS have been used to explain the NLO parameter of DMA-X and JLD-X. Variation of the incident optical frequency of light shows fluctuation of βHRS value and highest values of βHRS are obtain at the λmax frequency of each compound. Solvent polarity variation study on βHRS shows that βHRS varies linearly with the Kirkwood-Onsagar dielectric factor (D). METHODS All computational studies have been carried out using density functional theory (DFT) based method. Since CAM-B3LYP based hybrid functional improves the asymptotic behavior of the exchange interaction by dividing into short-range and long-range components, first hyperpolarizability values in the present study were computed using DFT/ CAM-B3LYP/ 6-31G+(d,p) level of theory.
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Affiliation(s)
- Usha Mandal
- Department of Chemistry, Vidyasagar University, Midnapore, 721101, India
| | - Hasibul Beg
- Department of Chemistry, Raja N. L. Khan Women's College, Midnapore, 721102, India
| | - Ajay Misra
- Department of Chemistry, Vidyasagar University, Midnapore, 721101, India.
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Maity R, Mandal D, Mandal U, Misra A. Computation of global reactivity descriptors along the proton transfer co-ordinate of 9-Hydroxy-phenalen-1-one and 6-Hydroxy-benzo[de]anthracen-7-one: a DFT-based comparative study. Mol Phys 2022. [DOI: 10.1080/00268976.2022.2047236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rakesh Maity
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Debkumar Mandal
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Usha Mandal
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
| | - Ajay Misra
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, India
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Ivonina MV, Orimoto Y, Aoki Y. Quantum chemistry-machine learning approach for predicting and elucidating molecular hyperpolarizability: Application to [2.2]paracyclophane-containing push-pull polymers. J Chem Phys 2021; 154:124107. [PMID: 33810676 DOI: 10.1063/5.0040342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Nonlinear optical properties of organic chromophores are of great interest in diverse photonic and optoelectronic applications. To elucidate general trends in the behaviors of molecules, large amounts of data are required. Therefore, both an accurate and a rapid computational approach can significantly promote the theoretical design of molecules. In this work, we combined quantum chemistry and machine learning (ML) to study the first hyperpolarizability (β) in [2.2]paracyclophane-containing push-pull compounds with various terminal donor/acceptor pairs and molecular lengths. To generate reference β values for ML, the ab initio elongation finite-field method was used, allowing us to treat long polymer chains with linear scale efficiency and high computational accuracy. A neural network (NN) model was built for β prediction, and the relevant molecular descriptors were selected using a genetic algorithm. The established NN model accurately reproduced the β values (R2 > 0.99) of long molecules based on the input quantum chemical properties (dipole moment, frontier molecular orbitals, etc.) of only the shortest systems and additional information about the actual system length. To obtain general trends in molecular descriptor-target property relationships learned by the NN, three approaches for explaining the ML decisions (i.e., partial dependence, accumulated local effects, and permutation feature importance) were used. The effect of donor/acceptor alternation on β in the studied systems was examined. The asymmetric extension of molecular regions end-capped with donors and acceptors produced unequal β responses. The results revealed how the electronic properties originating from the nature of substituents on the microscale controlled the magnitude of β according to the NN approximation. The applied approach facilitates the conceptual discoveries in chemistry by using ML to both (i) efficiently generate data and (ii) provide a source of information about causal correlations among system properties.
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Affiliation(s)
- Mariia V Ivonina
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yuuichi Orimoto
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Yuriko Aoki
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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Mandal D, Maity R, Mandal U, Salgado-Morán G, Misra A. Computation of electrical responsive properties and global reactivity descriptors along the proton transfer co-ordinate of donor–acceptor substituted pyrazole derivatives. Mol Phys 2021. [DOI: 10.1080/00268976.2020.1811413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Debkumar Mandal
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Rakesh Maity
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Usha Mandal
- Department of Chemistry, Vidyasagar University, Midnapore, India
| | - Guillermo Salgado-Morán
- Departamento de Ciencias Qumícas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Concepción, Chile
| | - Ajay Misra
- Department of Chemistry, Vidyasagar University, Midnapore, India
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Ye JT, Qiu YQ. The inspiration and challenge for through-space charge transfer architecture: from thermally activated delayed fluorescence to non-linear optical properties. Phys Chem Chem Phys 2021; 23:15881-15898. [PMID: 34296718 DOI: 10.1039/d1cp02565a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Organic molecules consisting of electron donor (D) and electron acceptor (A) subunits linked by π-conjugated bridges are promising building blocks for thermally activated delayed fluorescence (TADF) and non-linear optics (NLO) materials due to their intramolecular charge transfer (CT) processes in response to external stimuli. According to the electron interaction pattern, the CT process in D-π-A architectures can be divided into two categories, through-bond/-space charge transfer (TB/TSCT). To date, research into the TADF properties of TSCT characteristic molecules has since seen significant growth. In fact, TSCT characteristic materials show great advantages in such NLO responses. In this perspective, we first briefly introduced the basic principles of NLO and TADF effects. Successively, we discuss the influence of TBCT and TSCT patterns on NLO and TADF properties, especially for TSCT characteristic. In the final part, we address the diversity and potential advantages of TSCT characteristic molecules as high-performance NLO materials. With these, it is expected that the greater structural flexibility of spatial conjugation can bring more functionality to NLO materials in the future.
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Affiliation(s)
- Jin-Ting Ye
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China.
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Nonlinear optical properties of push-pull systems containing [2.2]paracyclophane: Theoretical study via elongation method. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137760] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shen Y, Li X, Ye J, Qiu Y. A DFT study on second-order NLO properties of bis-cyclometalated Iridium(III) complexes with chelating dicarbene auxiliary ligands. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.112535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Gao FW, Xu HL, Muhammad S, Su ZM. Stimulating intra- and intermolecular charge transfer and nonlinear optical response for biphenalenyl biradicaloid dimer under an external electric field. Phys Chem Chem Phys 2018; 20:18699-18706. [DOI: 10.1039/c8cp00416a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
External electric fields were found to induce intra- and intermolecular charge transfer and strengthen the second-order nonlinear optical responses of π-dimers.
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Affiliation(s)
- Feng-Wei Gao
- Institute of Functional Material Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
| | - Hong-Liang Xu
- Institute of Functional Material Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
| | - Shabbir Muhammad
- Department of Physics
- College of Science
- King Khalid University
- Abha 61413
- Saudi Arabia
| | - Zhong-Min Su
- Institute of Functional Material Chemistry
- National & Local United Engineering Laboratory for Power Batteries
- Department of Chemistry
- Northeast Normal University
- Changchun 130024
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Roy RS, Mondal A, Nandi PK. First hyperpolarizability of cyclooctatetraene modulated by alkali and alkaline earth metals. J Mol Model 2017; 23:93. [PMID: 28243890 DOI: 10.1007/s00894-017-3273-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 02/06/2017] [Indexed: 11/28/2022]
Abstract
In the present investigation, the first hyperpolarizability of alkali and alkaline earth metal derivatives of cyclooctatetraene (COT) has been calculated using BHHLYP and CAM-B3LYP functional for 6-311++G(d,p), 6-311++G(3df,3pd), and aug-pc 2 basis sets. Introduction of Na/K atoms at the axial position of COT and Li, Na, K/Be, Mg, Ca metal atoms and cyanide groups at the equatorial sites leads to lager enhancement of first hyperpolarizability. The ring charge density can account for the variation of first hyperpolarizability. The two state model has been invoked to explain the variation of first hyperpolarizability.
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Affiliation(s)
- Ria Sinha Roy
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711 103, India
| | - Avijit Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711 103, India
| | - Prasanta K Nandi
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711 103, India.
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Sun WM, Li XH, Li Y, Ni BL, Chen JH, Li CY, Wu D, Li ZR. Theoretical Study of the Substituent Effects on the Nonlinear Optical Properties of a Room-Temperature-Stable Organic Electride. Chemphyschem 2016; 17:3907-3915. [PMID: 27644001 DOI: 10.1002/cphc.201600970] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Indexed: 11/08/2022]
Abstract
Excess-electron compounds can be considered as novel candidates for nonlinear optical (NLO) materials because of their large static first hyperpolarizabilities (β0 ). A room-temperature-stable, excess-electron compound, that is, the organic electride Na@(TriPip222), was successfully synthesized by the Dye group (J. Am. Chem. Soc. 2005, 127, 12416). In this work, the β0 of this electride was first evaluated to be 1.13×106 au, which revealed its potential as a high-performance NLO material. In particular, the substituent effects of different substituents on the structure, electride character, and NLO response of this electride were systemically studied for the first time by density functional theory calculations. The results revealed that the β0 of Na@(TriPip222) could be further increased to 8.30×106 au by introducing a fluoro substituent, whereas its NLO response completely disappeared if one nitryl group was introduced because the nitro-group substitution deprived the material of its electride identity. Moreover, herein the dependence of the NLO properties on the number of substituents and their relative positions was also detected in multifluoro-substituted Na@(TriPip222) compounds.
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Affiliation(s)
- Wei-Ming Sun
- The School of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Xiang-Hui Li
- Medical Technology and Engineering College, Fujian Medical University, Fuzhou, 350004, P. R. China
| | - Ying Li
- Institute of Theoretical Chemistry, Jilin University, Changchun, 130023, P. R. China
| | - Bi-Lian Ni
- The School of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Jing-Hua Chen
- The School of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Chun-Yan Li
- The School of Pharmacy, Fujian Medical University, Fuzhou, 350108, P. R. China
| | - Di Wu
- Institute of Theoretical Chemistry, Jilin University, Changchun, 130023, P. R. China
| | - Zhi-Ru Li
- Institute of Theoretical Chemistry, Jilin University, Changchun, 130023, P. R. China
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Abstract
Modulation of first hyperpolarizability on varying structure of the bridge.
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Affiliation(s)
- Ria Sinha Roy
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
| | - Prasanta K. Nandi
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711 103
- India
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