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Shivani, Mishra A, Kaur P, Singh K. Synthesis and Nonlinear Optical Behavior of Thermally Stable Chromophores Based on 9,9-Dimethyl-9 H-fluoren-2-amine: Improving Intrinsic Hyperpolarizability through Modulation of "Push-Pull". ACS OMEGA 2022; 7:39045-39060. [PMID: 36340121 PMCID: PMC9631884 DOI: 10.1021/acsomega.2c04795] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/12/2022] [Indexed: 09/08/2024]
Abstract
Improvement in the first hyperpolarizability (βHRS) as well as intrinsic hyperpolarizability (βint) of chromophores based on 9,9-dimethyl-9H-fluoren-2-amine through modulation of the conjugation pathway is described. A series of six novel chromophores with "linear" conjugation showed significant enhancement of βHRS as well as βint compared to the counterparts lacking a "linear" conjugation but having an identical combination of donor, acceptor, and the intervening π-conjugated linker. The hyperpolarizability (βHRS as well as βint) values of the new series measured using hyper-Rayleigh scattering exceeded the apparent limit set by the latter set of fluorene-based chromophores. The experimental results are analyzed and interpreted in the context of linear optical properties, single-crystal X-ray analysis, electrochemistry, etc. and corroborated by theoretical studies. We find that modulation of the "push-pull" of the conjugation pathway in these donor-acceptor chromophores compares favourably with the corresponding changes in the optical gaps, transition dipole moments, and dipole moment difference between the ground and excited states.
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Affiliation(s)
- Shivani
- Department
of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar143005, India
| | - Akriti Mishra
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore560012, India
| | - Paramjit Kaur
- Department
of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar143005, India
| | - Kamaljit Singh
- Department
of Chemistry, UGC Centre of Advanced Study, Guru Nanak Dev University, Amritsar143005, India
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2
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Srinivasan Subiksha V, Viswanathan T, David E, Prabu S, Palanisami N. Ferrocene appended 1,8-naphthalimide chromophores: Synthesis, theoretical, the effect of phenyl substitution on aggregation-induced enhanced emission and second-order nonlinear optical studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 277:121282. [PMID: 35500356 DOI: 10.1016/j.saa.2022.121282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/15/2022] [Accepted: 04/16/2022] [Indexed: 06/14/2023]
Abstract
A new ferrocene appended linear donor-π-acceptor (D-π-A) type 1,8-naphthalimide chromophores [FcPhNap-n-butyl (1) and Fc(Ph)2Nap-n-butyl (2)] have been synthesized and characterized using various analytical and spectroscopic techniques. The chromophores 1 and 2 show the one-electron transfer process, which was examined through cyclic voltammetric (CV) method. The solvatochromic studies show red shift by increasing the solvent polarity from non-polar to polar for both the chromophores 1 and 2, due to the better stabilization of the more polarized excited state than the ground state in the polar solvent. The fluorescence studies show low fluorescence emission, which was enhanced by aggregation in THF/water mixture when the water ratio is increased upto 60%, due to the restricted intramolecular rotation (RIR) process in the aggregated state. Also, the quantum yield increases 3.4 (1) and 6.8 (2) times in the aggregation induced enhanced emission (AIEE) state than THF solution for both the chromophores [THF/AIEE = 0.05/0.17 for 1 and 0.03/0.22 for 2]. The second-order non-linear optical properties of the chromophores 1 and 2 were studied using Kurtz and Perry powder technique, chromophore 2 shows 1.2 times higher SHG efficiency than 1, owing to the presence of additional phenyl group in 2, which further supports the effective charge transfer process from donor to acceptor. Furthermore, optical and non-linear optical properties of chromophores 1 and 2 were analyzed by DFT/TD-DFT calculations using different functionals (B3LYP, long-range corrected CAM-B3LYP and LC-BLYP) with 6-31+G** level of theory. The B3LYP functional shows higher hyperpolarizability values [β0 = 109.2 × 10-30 esu (1), 299.7 × 10-30 esu (2)], due to the overestimation of the dipole moment, polarizability and hyperpolarizabilities between the donor-π-acceptor systems in B3LYP-hybrid functional, which leads to incorrect long-range charge transfer.
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Affiliation(s)
- Vengidusamy Srinivasan Subiksha
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Thamodharan Viswanathan
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Ezhumalai David
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Selvam Prabu
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Nallasamy Palanisami
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
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3
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Ferrocene/non-ferrocene conjugated linear eight-membered borasiloxanes: Structural, theoretical, optical and non-linear optical studies. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Podda E, Coles SJ, Horton PN, Lickiss PD, Bull OS, Orton JB, Pintus A, Pugh D, Carla Aragoni M, Davies RP. First example of solid-state luminescent borasiloxane-based chiral helices assembled through N-B bonds. Dalton Trans 2021; 50:3782-3785. [PMID: 33634815 DOI: 10.1039/d1dt00114k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction between differently substituted borasiloxanes and 2,5-bis(3-pyridylethynyl)thiophene provided the first example of luminescent borasiloxane-based chiral helices held together by N-B bonds. The starting building blocks and the helices were fully characterized, and the nature of the N-B bond rationalized by means of theoretical calculations.
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Affiliation(s)
- Enrico Podda
- Dipartimento di Scienze Chimiche e Geologiche, Università Degli Studi di Cagliari, Cittadella Universitaria, Monserrato-Cagliari, Italy.
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5
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Zhang X, Wang Q, Liu S, Zhang L, Wang G. Synthesis and characterization of fire-safety PET by Schiff base with nitro group. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110230] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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David E, Mishra K, Thirumoorthy K, Palanisami N. Aggregation induced emission (AIE)‐active N‐arylated ferrocenyl pyrazole‐based push–pull chromophores: Structural, photophysical, theoretical and effect of substitution on second‐order non‐linear optical properties. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ezhumalai David
- Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
| | - Kamini Mishra
- Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
| | - Krishnan Thirumoorthy
- Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
| | - Nallasamy Palanisami
- Department of Chemistry, School of Advanced Sciences Vellore Institute of Technology Vellore Tamil Nadu India
- Centre for Functional Materials Vellore Institute of Technology Vellore Tamil Nadu India
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7
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Zhang X, Wang Q, Liu S, Zhang L, Wang G. Improved processability and optimized preparing process for
fire‐safe
poly (ethylene terephthalate) by electron effect modified Schiff base. J Appl Polym Sci 2021. [DOI: 10.1002/app.50444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xinxing Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
| | - Qingyin Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
| | - Shaoying Liu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
| | - Lilei Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University Luoyang China
| | - Gongying Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu Sichuan China
- University of Chinese Academy of Sciences Beijing China
- Chengdu Organic Chemicals Co. Ltd Chengdu Sichuan China
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8
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Viswanathan T, Palanisami N. Ferrocene-appended boronated ester: effect of cyanovinylene group on the nonlinear optical properties and colorimetric detection of fluoride ion. NEW J CHEM 2021. [DOI: 10.1039/d1nj01652k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A centrosymmetric ferrocenyl boronated ester shows second-order NLO effect, selective and sensitive detection of fluoride ion.
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Affiliation(s)
- Thamodharan Viswanathan
- Center for Functional Materials
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore – 632014
| | - Nallasamy Palanisami
- Center for Functional Materials
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore – 632014
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9
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Frydrych M, Sztorch B, Brząkalski D, Pakuła D, Frąckowiak D, Majchrzak M, Marciniec B. New Functionalized Borasilsesquioxanes Obtained via Metathetical Transformation of 4‐Vinylphenylborasilsesquioxanes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Miłosz Frydrych
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61‐614 Poznań Poland
| | - Bogna Sztorch
- Centre for Advanced Technologies Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 10 61‐614 Poznań Poland
| | - Dariusz Brząkalski
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61‐614 Poznań Poland
| | - Daria Pakuła
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61‐614 Poznań Poland
| | - Dawid Frąckowiak
- Centre for Advanced Technologies Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 10 61‐614 Poznań Poland
| | - Mariusz Majchrzak
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61‐614 Poznań Poland
| | - Bogdan Marciniec
- Faculty of Chemistry Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 8 61‐614 Poznań Poland
- Centre for Advanced Technologies Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 10 61‐614 Poznań Poland
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