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Suresh A, Ramasamy R, Kallumpurath D, Solomon RV. Optimizing 2-furylated imidazole π-bridges for NIR lipid droplet imaging. Phys Chem Chem Phys 2024; 26:23032-23052. [PMID: 39172096 DOI: 10.1039/d4cp02093f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Lipid droplets (LDs) are globular biological organelles found in the human body, essential for lipid storage, homeostasis, energy reserve, cellular stress response, membrane biogenesis, and cellular signaling. Dysregulated accumulation of LDs leads to various diseases, including breast and liver cancers. Therefore, the development of diagnostic tools for monitoring LDs using suitable probes for bio-imaging applications is imperative. However, identifying promising probes with near-infrared emission characteristics is still a challenging and intriguing task, requiring extensive exploration of the structure-emission property relationship to design efficient probes for LDs. In this context, we envision the impact of 2-furylated imidazole as a π-bridge and have designed nine LD probes by substituting it with electron-releasing groups like CH3, NH2, NH(CH3), and N(CH3)2 at the 3rd and 4th positions via DFT, TD-DFT, FMO, ESP, NCI, and QTAIM analyses. Our results demonstrate that LDP7 with NH(CH3) at the 3rd position is the most promising molecule, exhibiting the highest emission maxima (772.02 nm) with a lower HOMO-LUMO gap, suggesting its suitability for a range of biomedical applications. An enhancement of ∼200 nm is achieved through tailoring the molecular structure using the designed 2-furylated imidazole-derived π-bridge. ADMET and molecular docking analysis followed by molecular dynamics simulations with the human pyruvate kinase protein reveal these LDPs' bioavailability, binding ability and their stability towards their bio-imaging applications. In summary, our study offers valuable insights to aid researchers in developing and refining various π-linkers for lipid droplet bio-imaging applications.
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Affiliation(s)
- Anamika Suresh
- Department of Chemistry, R.S.M. SNDP Yogam College, [Affiliated to the University of Calicut], Kozhikode - 673 305, Kerala, India
| | - Rohith Ramasamy
- Department of Chemistry, Madras Christian College (Autonomous), [Affiliated to the University of Madras], Chennai - 600 059, Tamil Nadu, India.
| | - Deepa Kallumpurath
- Department of Chemistry, R.S.M. SNDP Yogam College, [Affiliated to the University of Calicut], Kozhikode - 673 305, Kerala, India
| | - Rajadurai Vijay Solomon
- Department of Chemistry, Madras Christian College (Autonomous), [Affiliated to the University of Madras], Chennai - 600 059, Tamil Nadu, India.
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Husain S, Pandey N, Fatma N, Pant S, Mehata MS. Quantum Computational and Spectroscopic Investigation of 3-aminosalicylic Acid. J Fluoresc 2024:10.1007/s10895-024-03781-y. [PMID: 38954083 DOI: 10.1007/s10895-024-03781-y] [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: 03/08/2024] [Accepted: 06/06/2024] [Indexed: 07/04/2024]
Abstract
Quantum chemical calculations of 3-aminosalicylic acid (3ASA) (monomer and dimer forms) have been performed using DFT and TD-DFT theories with B3LYP/6-311 G(d,p) functional level in the ground and excited states. Using TD-DFT with IEF-PCM model, the electronic spectra of 3ASA in solvents were computed and correlated with the experimental data. The theoretically calculated absorption and emission maxima of 3ASA (monomer) are observed in the range of 343 - 347 nm (S0 → S1 transition) and 429 - 448 nm (S1 → S0 transition), respectively. The natural bond orbital (NBO) analysis shows that charge transfer interaction contributes significantly to stabilize the molecular system. In the case of dimer, hydrogen bonding plays a dominant role in stabilizing the molecular framework. Additionally, the obtained nonlinear optical (NLO) properties: polarizability (13.86 × 10-24 e.s.u for monomer and 29.46 × 10-24 e.s.u. for dimer), first-order hyperpolarizability (4.21 × 10-30 e.s.u for monomer and 0.18 × 10-30 e.s.u for dimer) and second-order hyperpolarizability (7.44 × 10-36 e.s.u. for monomer and 14.32 × 10-36 e.s.u. for dimer) were found to be larger than those of standard organic compounds suggesting that 3ASA has a significant NLO character for optoelectronic applications. The NLO properties of dimer may differ from monomer due to dimerization. Further, the radiative lifetime, light harvesting efficiency and band gap energy were calculated, and proposed that 3ASA may be useful in photovoltaics and wide bandgap power devices. HIGHLIGHTS: • DFT and TD-DFT theories were employed to calculate structural and molecular properties of 3ASA (monomer and dimer) in ground and excited states. • HOMO-LUMO study shows monomer and dimer of 3ASA are good reactive. • NBO analysis reflects that charge transfer interactions stabilized the 3ASA molecule. • Electronic absorption/emission spectra in solvents calculated by IEF-PCM/TD-DFT method correlate with experimental results. • Calculated NLO parameters suggested that 3ASA is a potential candidate for NLO material.
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Affiliation(s)
- Shahid Husain
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, 263002, India
| | - Nupur Pandey
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, 263002, India
| | - Nisha Fatma
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, 263002, India
| | - Sanjay Pant
- Photophysics Laboratory, Department of Physics, Centre of Advanced Study, DSB Campus, Kumaun University, Nainital, 263002, India.
| | - Mohan Singh Mehata
- Laser Spectroscopy Laboratory, Department of Applied Physics, Delhi Technological University, Bawana Road, Delhi, 110042, India.
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Noudem P, Fouejio D, Mveme CDD, Zekeng SS. Styrene monomer as potential material for design of new optoelectronic and nonlinear optical polymers: density functional theory study. ROYAL SOCIETY OPEN SCIENCE 2024; 11:240014. [PMID: 39253096 PMCID: PMC11382805 DOI: 10.1098/rsos.240014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 05/11/2024] [Accepted: 06/18/2024] [Indexed: 09/11/2024]
Abstract
Using density functional theory, we have studied the intrinsic properties of styrene. First, we determine the optimized structures, structural parameters and thermodynamic properties to make our simulations more realistic to experimental results and check the stability. Second, we investigate optoelectronic, electronic and global descriptors, transport properties of holes and electrons, natural bond orbital analysis, absorption and fluorescence properties. Finally, we study nonlinear optical (NLO) properties: first- and second-order hyperpolarizability, second and third-order optical susceptibilities, hyper-Rayleigh scattering hyperpolarizability, electro-optical Pockel effect, direct current Kerr effects and quadratic refractive index. The bandgap energy E g = 5.146 eV and dielectric constantε r = 3.062 show that styrene is a good insulator with an average electric field value of 4.43 × 108 Vm-1. Thermodynamic findings show that our molecule is thermodynamically and chemically stable. Electron and hole reorganization energies of 0.393 and 0.295 eV, respectively, show that styrene is more favourable to hole transport than electron transport. Styrene is transparent with linear refractive index n = 1.750 and quadratic n 2 = 1.748 × 10-20 m2 W-1. At the NLO, styrene has a non-zero value ofβ H R S , which confirms the existence of first-order NLO activity. Globally the study shows that the styrene monomer is suitable for the architecture design of new polymer materials for NLO applications and optoelectronic by functionalization.
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Affiliation(s)
- P Noudem
- Mechanic Materials and Complex Structures Laboratory, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - D Fouejio
- Mechanic Materials and Complex Structures Laboratory, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
| | - C D D Mveme
- Materials Science Laboratory, Department of Physics,Faculty of Science, University of Maroua, P.O. Box 814, Maroua, Cameroon
| | - S S Zekeng
- Mechanic Materials and Complex Structures Laboratory, Department of Physics, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon
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Hadji D, Baroudi B, Bensafi T. Nonlinear optical properties of azo sulfonamide derivatives. J Mol Model 2024; 30:117. [PMID: 38561513 DOI: 10.1007/s00894-024-05915-2] [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: 02/04/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
CONTEXT The present work deals with the linear and nonlinear optical properties such as the dipole moment, polarizability, total hyperpolarizability, electric field-induced second harmonic generation, and hyper-Rayleigh scattering first hyperpolarizability of four heterocyclic azo compounds containing the sulfonamide group considered promise in nonlinear optic. The obtained polarizability and hyperpolarizability were supported by the frontier molecular orbital analysis. The properties have been effectively estimated and thoroughly examined to shed light on the nonlinear optical activity based on the density functional theory. The observed results show a high total first hyperpolarizability β tot up to 2503 a.u. and a low energy gap E g less than 1.41 eV. An inverse relationship has been obtained between the β tot and E g . The calculated E g values confirm that charge occurs within the azo sulfonamides. The new study provides a promising avenue for the development of these azo sulfonamides as novel NLO materials. METHODS The molecular modeling and the theoretical studies were performed with Gaussian software packages. The B3LYP/6-311 + G** level was used for optimization. All the linear and nonlinear optical properties reported here are obtained using the DFT. The optimized structures and their frontier molecular orbitals were plotted using the GaussView 5.1 program.
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Affiliation(s)
- Djebar Hadji
- Department of Chemistry, Faculty of Sciences, University of Saida - Dr. Moulay Tahar, 20000, Saïda, Algeria.
- Modeling and Calculation Methods Laboratory, University of Saida - Dr. Moulay Tahar, 20000, Saïda, Algeria.
| | - Benamar Baroudi
- Hassiba Benbouali University of Chlef, Ouled Fares, 02180, Chlef, Algeria
| | - Toufik Bensafi
- Modeling and Calculation Methods Laboratory, University of Saida - Dr. Moulay Tahar, 20000, Saïda, Algeria
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Exploration of Electronic and Non-Linear Optical Properties of Novel 4-Aryl-2-methylpyridine Based Compounds Synthesized via High-Yielding Pd(0) Catalysed Reaction. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Haroon M, Janjua MRSA. Computationally Assisted Design and Prediction of Remarkably Boosted NLO Response of Organoimido‐Substituted Hexamolybdates. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Muhammad Haroon
- Chemistry Department King Fahd University of Petroleum and Minerals Dhahran Kingdom of Saudi Arabia
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Khan MU, Khalid M, Shafiq I, Khera RA, Shafiq Z, Jawaria R, Shafiq M, Alam MM, Braga AAC, Imran M, Kanwal F, Xu Z, Lu C. Theoretical investigation of nonlinear optical behavior for rod and T-Shaped phenothiazine based D-π-A organic compounds and their derivatives. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101339] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Khalid M, Khan MU, Shafiq I, Hussain R, Mahmood K, Hussain A, Jawaria R, Hussain A, Imran M, Assiri MA, Ali A, ur Rehman MF, Sun K, Li Y. NLO potential exploration for D–π–A heterocyclic organic compounds by incorporation of various π-linkers and acceptor units. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103295] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Choi H, Ok KM. Systematic centricity control using a chiral template: novel noncentrosymmetric polar niobium oxyfluorides and tantalum fluorides directed by chiral histidinium cations, [( l-hisH 2)NbOF 5], [( d-hisH 2)NbOF 5], [( l-hisH 2)TaF 7], and [( d-hisH 2)TaF 7]. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00634g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel noncentrosymmetric polar niobium and tantalum (oxy)fluorides have been systematically synthesized by using a chiral histidinium template.
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Affiliation(s)
- HeeJung Choi
- Department of Chemistry
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Kang Min Ok
- Department of Chemistry
- Sogang University
- Seoul 04107
- Republic of Korea
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Prabu S, David E, Viswanathan T, Thirumoorthy K, Panda T, Dragonetti C, Colombo A, Marinotto D, Righetto S, Roberto D, Palanisami N. NLO-active Y-shaped ferrocene conjugated imidazole chromophores as precursors for SHG polymeric films. Dalton Trans 2020; 49:1854-1863. [PMID: 31967141 DOI: 10.1039/c9dt03637g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New Y-shaped ferrocene conjugated imidazole chromophores were prepared and fully characterized. The Y-shaped structure was confirmed by the single crystal X-ray diffraction technique. The chromophores show interesting second-order nonlinear optical (NLO) properties in solution, as determined by the Electric-Field Induced Second Harmonic generation (EFISH) technique. Remarkably, the trifluoro substituted compound 3 is characterized by a high μβEFISH value and has good potential as a molecular building block for composite films with Second Harmonic Generation (SHG) properties. For all compounds, the dipole moments and frontier orbital energies were calculated by the Density Functional Theoretical method.
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Affiliation(s)
- Selvam Prabu
- Department of Chemistry, School of Advanced Science, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India.
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Khalid M, Ali A, Jawaria R, Asghar MA, Asim S, Khan MU, Hussain R, Fayyaz ur Rehman M, Ennis CJ, Akram MS. First principles study of electronic and nonlinear optical properties of A–D–π–A and D–A–D–π–A configured compounds containing novel quinoline–carbazole derivatives. RSC Adv 2020; 10:22273-22283. [PMID: 35516655 PMCID: PMC9054527 DOI: 10.1039/d0ra02857f] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/19/2020] [Indexed: 01/09/2023] Open
Abstract
Materials with nonlinear optical (NLO) properties have significant applications in different fields, including nuclear science, biophysics, medicine, chemical dynamics, solid physics, materials science and surface interface applications. Quinoline and carbazole, owing to their electron-deficient and electron-rich character respectively, play a role in charge transfer applications in optoelectronics. Therefore, an attempt has been made herein to explore quinoline–carbazole based novel materials with highly nonlinear optical properties. Structural tailoring has been made at the donor and acceptor units of two recently synthesized quinoline–carbazole molecules (Q1, Q2) and acceptor–donor–π–acceptor (A–D–π–A) and donor–acceptor–donor–π–acceptor (D–A–D–π–A) type novel molecules Q1D1–Q1D3 and Q2D2–Q2D3 have been quantum chemically designed, respectively. Density functional theory (DFT) and time-dependent density functional theory (TDDFT) computations are performed to process the impact of acceptor and donor units on photophysical, electronic and NLO properties of selected molecules. The λmax values (321 and 319 nm) for Q1 and Q2 in DSMO were in good agreement with the experimental values (326 and 323 nm). The largest shift in absorption maximum is displayed by Q1D2 (436 nm). The designed compounds (Q1D3–Q2D3) express absorption spectra with an increased border and with a reduced band gap compared to the parent compounds (Q1 and Q2). Natural bond orbital (NBO) investigations showed that the extended hyper conjugation and strong intramolecular interaction play significant roles in stabilising these systems. All molecules expressed significant NLO responses. A large value of βtot was elevated in Q1D2 (23 885.90 a.u.). This theoretical framework reveals the NLO response properties of novel quinoline–carbazole derivatives that can be significant for their use in advanced applications. Materials with nonlinear optical properties have significant applications in nuclear science, biophysics, medicine, chemical dynamics, solid physics & materials science. We show how π bridges, donors & acceptors can be reconfigured to improve optical properties.![]()
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Affiliation(s)
- Muhammad Khalid
- Department of Chemistry
- Khawaja Fareed University of Engineering & Information Technology
- Rahim Yar Khan
- Pakistan
| | - Akbar Ali
- Department of Chemistry
- University of Sargodha
- Sargodha 40100
- Pakistan
| | - Rifat Jawaria
- Department of Chemistry
- Khawaja Fareed University of Engineering & Information Technology
- Rahim Yar Khan
- Pakistan
| | | | - Sumreen Asim
- Department of Chemistry
- Khawaja Fareed University of Engineering & Information Technology
- Rahim Yar Khan
- Pakistan
| | | | - Riaz Hussain
- Department of Chemistry
- University of Okara
- Okara-56300
- Pakistan
| | | | | | - Muhammad Safwan Akram
- School of Health and Life Sciences
- Teesside University
- Middlesbrough
- UK
- National Horizons Centre
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Electron Donor and Acceptor Influence on the Nonlinear Optical Response of Diacetylene-Functionalized Organic Materials (DFOMs): Density Functional Theory Calculations. Molecules 2019; 24:molecules24112096. [PMID: 31159484 PMCID: PMC6600272 DOI: 10.3390/molecules24112096] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 11/17/2022] Open
Abstract
Herein, we report the quantum chemical results based on density functional theory for the polarizability (α) and first hyperpolarizability (β) values of diacetylene-functionalized organic molecules (DFOM) containing an electron acceptor (A) unit in the form of nitro group and electron donor (D) unit in the form of amino group. Six DFOM 1–6 have been designed by structural tailoring of the synthesized chromophore 4,4′-(buta-1,3-diyne-1,4-diyl) dianiline (R) and the influence of the D and A moieties on α and β was explored. Ground state geometries, HOMO-LUMO energies, and natural bond orbital (NBO) analysis of all DFOM (R and 1–6) were explored through B3LYP level of DFT and 6-31G(d,p) basis set. The polarizability (α), first hyperpolarizability (β) values were computed using B3LYP (gas phase), CAM-B3LYP (gas phase), CAM-B3LYP (solvent DMSO) methods and 6-31G(d,p) basis set combination. UV-Visible analysis was performed at CAM-B3LYP/6-31G(d,p) level of theory. Results illustrated that much reduced energy gap in the range of 2.212–2.809 eV was observed in designed DFOM 1–6 as compared to parent molecule R (4.405 eV). Designed DFOM (except for 2 and 4) were found red shifted compared to parent molecule R. An absorption at longer wavelength was observed for 6 with 371.46 nm. NBO analysis confirmed the involvement of extended conjugation and as well as charge transfer character towards the promising NLO response and red shift of molecules under study. Overall, compound 6 displayed large <α> and βtot, computed to be 333.40 (a.u.) (B3LYP gas), 302.38 (a.u.) (CAM-B3LYP gas), 380.46 (a.u.) (CAM-B3LYP solvent) and 24708.79 (a.u.), 11841.93 (a.u.), 25053.32 (a.u.) measured from B3LYP (gas), CAM-B3LYP (gas) and CAM-B3LYP (DMSO) methods respectively. This investigation provides a theoretical framework for conversion of centrosymmetric molecules into non-centrosymmetric architectures to discover NLO candidates for modern hi-tech applications.
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Khan MU, Ibrahim M, Khalid M, Braga AAC, Ahmed S, Sultan A. Prediction of Second-Order Nonlinear Optical Properties of D–π–A Compounds Containing Novel Fluorene Derivatives: A Promising Route to Giant Hyperpolarizabilities. J CLUST SCI 2019. [DOI: 10.1007/s10876-018-01489-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kibler AJ, Newton GN. Tuning the electronic structure of organic–inorganic hybrid polyoxometalates: The crucial role of the covalent linkage. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Janjua MRSA. Structural Properties and Nonlinear Optical Responses of Halogenated Compounds: A DFT Investigation on Molecular Modelling. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractComputational chemistry is used to evaluate structures of different compounds by using principles of theoretical and quantum chemistry integrated into useful computer programs. It is used to determine energies, dipole moments and thermodynamic properties of different compounds. The present work reports the computational study of six donor-acceptor dyes. The computational method CAM-B3LYP with 6-31G(d,p) was used in this research to determine the effect of halogens on non-linear optical compounds. HOMO-LUMO energy gaps, dipole polarizabilities, first hyperpolarizabilities, and absorption spectra of six studied compounds (dye 1: 4-(2-(4-fluorophenyl)ethynyl)benzenamine; dye 2: 4-(2-(4-chlorophenyl)ethynyl)benzenamine; dye 3: 4-(2-(4-bromophenyl)ethynyl)benzenamine; dye 4: 5-(2-(4-fluorophenyl)ethynyl)benzene-1,2,3-triamine; dye 5: 5-(2-(4-chlorophenyl)ethynyl)benzene-1,2,3-triamine; dye 6: 5-(2-(4-bromophenyl)ethynyl)benzene-1,2,3-triamine) with aniline and halo phenyl segments were computed by using density functional theory (DFT) and time-dependent density functional theory (TDDFT). Results indicate that all dyes showed wavelengths of maximum absorbance in the visible region. Small HOMO-LUMO energy gaps were observed in all investigated dyes. The present calculations on these dyes (1-6) offer an understanding of the direction of charge transfer (CT) and how NLO behavior can be explained. The aniline-to-halo phenyl CT, caused by the combination of the donor amino group and the acceptor halo group, could be a reason for NLO behavior of these sorts of compounds. These compounds exhibit significant molecular second-order NLO responses, especially dyes (6) and (5), with second-order polarizability determined to be approximately 4600 a.u.
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Janjua MRSA. Structure–Property Relationship and Systematic Study of a Series of Terpyridine Based Nonlinear Optical Compounds: DFT Computation of Interactive Design. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1458-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthetic, XRD, non-covalent interactions and solvent dependent nonlinear optical studies of Sulfadiazine-Ortho-Vanillin Schiff base: (E)-4-((2-hydroxy-3-methoxy- benzylidene) amino)-N-(pyrimidin-2-yl)benzene-sulfonamide. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.043] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Janjua MRSA. Nonlinear optical response of a series of small molecules: quantum modification of π-spacer and acceptor. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1141-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Janjua MRSA, Yamani ZH, Jamil S, Mahmood A, Ahmad I, Haroon M, Tahir MH, Yang Z, Pan S. First Principle Study of Electronic and Non-Linear Optical (NLO) Properties of Triphenylamine Dyes: Interactive Design Computation of New NLO Compounds. Aust J Chem 2016. [DOI: 10.1071/ch15402] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this study, density functional theory and time-dependent density functional theory are used to determine how the size of π-conjugated system influences the absorption spectra and non-linear optical (NLO) properties of dyes. Double and triple bonds, as well the benzene rings, are used in conjugated systems. The results of the theoretical computation show that the absorption spectra are gradually broadened and red-shifted with increases in the conjugation length. Theoretical examination of the NLO properties was performed on the key parameters of polarizability and hyperpolarizability. A notable increase in the non-linear optical response was observed with an increase in the conjugation length of the π-spacer.
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Effect of alkyl chain on the NLO property of nonylphenol isomers: a DFT study. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1497-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mahmood A, Abdullah MI, Khan SUD. Enhancement of nonlinear optical (NLO) properties of indigo through modification of auxiliary donor, donor and acceptor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:425-430. [PMID: 25576939 DOI: 10.1016/j.saa.2014.12.038] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 06/13/2014] [Accepted: 12/10/2014] [Indexed: 06/04/2023]
Abstract
In this study, indigo based dyes with high non-linear optical response have been investigated. Density functional theory (DFT) was used to study non-linear optical properties of indigo and newly designed dyes (IM-Dye-0, IM-Dye-1, IM-Dye-2 and IM-Dye-3). The time dependant density functional theory (TDDFT) was used to calculate the excitation energies. The HOMO-LUMO energy gaps of newly designed dyes were smaller as compare with indigo dye. Absorption maxima of newly designed dyes strongly red shifted as compare with indigo dye. High non-linear optical (NLO) response of newly designed dyes revealed that these materials would be excellent for NLO applications. This theoretical approach of designing will pave the way for experimentalists to synthesize high response NLO compound.
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Affiliation(s)
- Asif Mahmood
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan.
| | | | - Salah Ud-Din Khan
- Sustainable Energy Technologies Center, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
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Janjua MRSA, Jamil S, Mahmood A, Zafar A, Haroon M, Bhatti HN. Solvent-Dependent Non-Linear Optical Properties of 5,5′-Disubstituted-2,2′-bipyridine Complexes of Ruthenium(II): A Quantum Chemical Perspective. Aust J Chem 2015. [DOI: 10.1071/ch14736] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this research article, we reported solvent effects on non-linear optical (NLO) properties of 5,5′-disubstituted-2,2′-bipyridine complexes of ruthenium. The polarizability (α) and hyperpolarizability (β) were calculated in the gas phase. Benzene (ϵ (dielectric constant) = 2.3), THF (ϵ = 7.52), dichloromethane (ϵ = 8.93), acetone (ϵ = 21.01), methanol (ϵ = 33.00), and water (ϵ = 80.10) were used by density functional theory. These solvents cover a wide range of polarities. The results of theoretical investigation showed that the non-linear optical properties were significantly increased with the increase in solvent polarity. The results of this study also showed that similarly to structural modifications, polarity of the medium may play a significant role in modulating the NLO properties.
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Janjua MRSA, Jamil S, Ahmad T, Yang Z, Mahmood A, Pan S. Quantum chemical perspective of efficient NLO materials based on dipolar trans-tetraammineruthenium (II) complexes with pyridinium and thiocyanate ligands: First theoretical framework. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.01.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Janjua MRSA, Mahmood A, Ahmad F. Solvent effects on nonlinear optical response of certain tetrammineruthenium(II) complexes of modified 1,10-phenanthrolines. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0377] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In this research paper, we have reported solvent effects on nonlinear optical properties of tetrammineruthenium(II) complexes of modified 1,10-phenanthrolines. Polarizability and hyperpolarizability were calculated in the gas phase, benzene (ε = 2.3), THF (ε = 7.52), dichloromethane (ε = 8.93), acetone (ε = 21.01), methanol (ε = 33.00), acetonitrile (ε = 36.64), and water (ε = 80.10) using density functional theory. These solvents cover a wide range of polarities. The results of theoretical investigation have shown that nonlinear optical properties significantly increased with the increase of solvent polarity. Solvent strongly affected hyperpolarizability as compared with polarizability. Nonlinear optical properties were also changed by the change of functional. Hyperpolarizability significantly changed with the change of functional as compared with polarizability. The results of this study indicate that like structural modification, polarity of the medium can significantly change the nonlinear optical properties.
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Affiliation(s)
| | - Asif Mahmood
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Farooq Ahmad
- College of Chemical Engineering and Material Sciences, Zhejiang University of Technology, Zhejiang, China
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25
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Janjua MRSA. Quantum Mechanical Design of Efficient Second-Order Nonlinear Optical Materials Based on Heteroaromatic Imido-Substituted Hexamolybdates: First Theoretical Framework of POM-Based Heterocyclic Aromatic Rings. Inorg Chem 2012; 51:11306-14. [DOI: 10.1021/ic3002652] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Miró P, Ling J, Qiu J, Burns PC, Gagliardi L, Cramer CJ. Experimental and Computational Study of a New Wheel-Shaped {[W5O21]3[(UVIO2)2(μ-O2)]3}30– Polyoxometalate. Inorg Chem 2012; 51:8784-90. [DOI: 10.1021/ic3005536] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pere Miró
- Department of Chemistry and
Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jie Ling
- Department of Civil
Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jie Qiu
- Department of Civil
Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Peter C. Burns
- Department of Civil
Engineering and Geological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department of Chemistry
and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Laura Gagliardi
- Department of Chemistry and
Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department of Chemistry and
Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Janjua MRSA, Khan MU, Bashir B, Iqbal MA, Song Y, Naqvi SAR, Khan ZA. Effect of π-conjugation spacer (CC) on the first hyperpolarizabilities of polymeric chain containing polyoxometalate cluster as a side-chain pendant: A DFT study. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.06.011] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Lv C, Hu J, Zhou H, Li Z, Khan RNN, Wei Y. Theoretical investigation of the mechanism of primary amines reacting with hexamolybdate: an insight into the organoimido functionalization and related reactions of polyoxometalates. Chemistry 2012; 18:8681-91. [PMID: 22674753 DOI: 10.1002/chem.201103470] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/30/2012] [Indexed: 02/05/2023]
Abstract
The functionalization of polyoxometalates (POMs), especially with an amino group to yield organonitrogenous derivatives of POMs, is an efficient approach to the enrichment of their structures and the diversification of their properties for various applications. The mechanism for the formation of organonitrogenous-derivatized hexamolybdates was explored by investigating the monofunctionalization of the [Mo(6)O(19)](2-) ion with methylamine using the density functional theory (DFT) method. The calculations show that the direct imidoylization of hexamolybdate with methylamine is both kinetically and thermodynamically unfavorable. However, this imidoylization was found to take place readily in the presence of dimethylcarbodiimide (DMC), for which the free-energy barrier was calculated to be +32.5 kcal mol(-1) in acetonitrile. Moreover, various factors controlling the efficiency of the imidoylization were examined. The calculations show that [W(5)MoO(19)](2-) has a relatively lower reactivity than [Mo(6)O(19)](2-), and that the imidoylization of [W(6)O(19)](2-) is an unfavorable process. With respect to the effect of carbodiimides, it is found that the catalytic activity is directly proportional to the electron-withdrawing effects of the substituents. As to the reactivity of R-NH(2) , the computation results indicate that the free-energy barriers of the substitution reactions are linearly correlated with the basicity constants (pK(b)) of the amino groups. It is noteworthy that the introduction of the proton dramatically decreases the free-energy barrier of the imidoylization of [Mo(6)O(19)](2-) catalyzed by DMC to 24.3 kcal mol(-1) in acetonitrile.
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Affiliation(s)
- Chunlin Lv
- Department of Chemistry, Tsinghua University, Beijing 100084, PR China
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Janjua MRSA, Amin M, Ali M, Bashir B, Khan MU, Iqbal MA, Guan W, Yan L, Su ZM. A DFT Study on The Two-Dimensional Second-Order Nonlinear Optical (NLO) Response of Terpyridine-Substituted Hexamolybdates: Physical Insight on 2D Inorganic-Organic Hybrid Functional Materials. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201101092] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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