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Abedin MM, Pal TK, Chanmiya Sheikh M, Alam MA. Investigation on synthesized sulfonamide Schiff base with DFT approaches and in silico pharmacokinetic studies: Topological, NBO, and NLO analyses. Heliyon 2024; 10:e34499. [PMID: 39130455 PMCID: PMC11315171 DOI: 10.1016/j.heliyon.2024.e34499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 08/13/2024] Open
Abstract
The sulfonamide Schiff base (C16H14N4O3S) was successfully synthesized and experimentally ascertained. The main purpose of this research is to investigate the geometry of the aforesaid molecule using both experimental and density functional theory (DFT) techniques and determine its drug likeness characteristics, docking ability as an insulysin inhibitor, and its NLO property. For the computational investigations the DFT approaches were utilized at the B3LYP level with the 6-311G+(d,p) basic set. The experimental results of the compound (such as FT-IR, UV-Vis, and 1H NMR) were compared with simulated data. The both results were well and consistent with previously related published data. The obtained spectral results confirm the formation of the Schiff base compound. Both π-π* and n-π* interactions were found in experimental and computational UV-Vis spectra, as well as in the natural bond orbital (NBO) study. The molecular, electronic, covalent, and non-covalent interactions were analyzed using DFT studies. Both experimental and simulation results revealed that the compound is successfully formed and relatively stable. The compound with a lower band gap showed high chemical reactivity. The medicinal characteristics of the compound were evaluated using in silico medicinal methods. The investigated compound was also followed Pfizer, Golden Triangle, GSK as well as Lipinski's rules. Therefore, the compound has more favorable absorption, distribution, metabolism, excretion, and toxicity (ADMET) profile and it can be used as non-toxic oral drug candidate. The compound was exhibited good insulysin inhibitory activity and it has almost eighteen times higher non-linear optical properties than urea and three times higher than potassium dihydrogen phosphate (KDP).
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Affiliation(s)
- Md Minhazul Abedin
- Department of Chemistry, Rajshahi University of Engineering & Technology, 6204, Bangladesh
| | - Tarun Kumar Pal
- Department of Chemistry, Rajshahi University of Engineering & Technology, 6204, Bangladesh
| | | | - Md Ashraful Alam
- Department of Chemistry, Rajshahi University of Engineering & Technology, 6204, Bangladesh
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2
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Gunes BA, Kirlangic OF, Kilic M, Sunguroglu A, Ozgurtas T, Sezginer EK, Boyacioglu B, Unver H, Yildiz M. Palladium Metal Nanocomposites Based on PEI-Functionalized Nitrogen-Doped Graphene Quantum Dots: Synthesis, Characterization, Density Functional Theory Modeling, and Cell Cycle Arrest Effects on Human Ovarian Cancer Cells. ACS OMEGA 2024; 9:13342-13358. [PMID: 38524449 PMCID: PMC10956410 DOI: 10.1021/acsomega.3c10324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 02/14/2024] [Accepted: 02/21/2024] [Indexed: 03/26/2024]
Abstract
In this study, the synthesis, characterization, density functional theory calculations (DFT), and effect of polyethylenimine (PEI)-functionalized nitrogen-doped graphene quantum dots (PEI N-GQDs) and their palladium metal nanoparticles nanocomposites (PdNPs/PEI N-GQDs) on cancer cells were extensively investigated. The focus also includes investigating their cytotoxic and apoptotic effects on ovarian cancer cells, which pose a serious risk to women's health and have high death rates from delayed diagnosis, inadequate response to treatment, and decreased survival. Graphene quantum dots and their palladium nanocomposites were differentially effective against ovarian cancer cell lines. In particular, the smaller particle size and morphology of PdNPs/PEI N-GQDs nanocomposites compared with PEI N-GQDs probably enhance their activity through highly improved uptake by cells. These findings emphasize the importance of particle size in composite drugs for efficient cancer treatment. DFT results revealed that the Pd-containing nanocomposite, with a smaller highest occupied molecular orbital-lowest unoccupied molecular orbital gap, exhibited higher reactivity and anticancer effects in human ovarian cancer cell line, OVCAR-3. Significantly, the application of nanocomposites to ovarian cancer cells initiated apoptosis, offering valuable insights into the intricate interplay between nanomaterials and cancer biology.
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Affiliation(s)
- Buket Altinok Gunes
- Vocational
School of Health Services, Ankara University, Ankara 06290, Turkiye
| | | | - Murat Kilic
- Vocational
School of Health Services, Ankara University, Ankara 06290, Turkiye
| | - Asuman Sunguroglu
- Department
of Medical Biology, School of Medicine, Ankara University, Ankara 06620, Turkiye
| | - Taner Ozgurtas
- Department
of Medical Biochemistry, Gulhane School of Medicine, University of Health Sciencies, Ankara 06018, Turkiye
| | - Ecem Kaya Sezginer
- Department
of Biochemistry, Faculty of Pharmacy, Ankara
University, Ankara 06100, Turkiye
| | - Bahadir Boyacioglu
- Vocational
School of Health Services, Ankara University, Ankara 06290, Turkiye
| | - Huseyin Unver
- Department
of Physics, Faculty of Science, Ankara University, Ankara 06100, Turkiye
| | - Mustafa Yildiz
- Department
of Chemistry, Faculty of Sciences, Canakkale
Onsekiz Mart University, Canakkale 17100, Turkiye
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3
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Yildiz EA, Ünlü BA, Karatay A, Bozkurt Y, Özler ME, Sözmen F, Yabaş E, Boyacioglu B, Ünver H, Elmali A. Two-Photon Absorption Response of Functionalized BODIPY Dyes in Near-IR Region by Tuning Conjugation Length and Meso-Substituents. ACS OMEGA 2023; 8:30939-30948. [PMID: 37663455 PMCID: PMC10468828 DOI: 10.1021/acsomega.3c02314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/02/2023] [Indexed: 09/05/2023]
Abstract
BODIPY dyes substituted by phenol or -COOMe units at the meso-position (C8) with and without a distyryl group including a methoxy moiety at the -C3 and -C5 positions of the BODIPY have been synthesized to analyze the photophysical properties. To clarify the ground-state interaction, absorption and emission features were investigated in the THF environment. Extending the π-conjugation with the methoxy moiety at -C3 and -C5 positions of BODIPY leads to a spectral shifting of the absorption maxima toward red by 120 nm. In addition, attaching the -COOMe unit at the meso-position of the BODIPY structure increases nonradiative molecular relaxation as compared to compounds possessing phenol substituents at the same position. We have investigated the effect of phenol and a -COOMe group and π-extended conjugation length with a methoxy moiety on the properties of two-photon absorption (TPA) and electron transfer dynamics by performing open-aperture (OA) Z-scan and femtosecond transient absorption spectroscopy measurements, respectively. The synthesized BODIPY compounds with the distyryl group including the methoxy unit show TPA character due to the longer conjugation length and therefore intramolecular charge transfer ability. Based on the OA Z-scan experiments upon photoexcitation with 800 nm pulsed laser light, TPA cross-section values were obtained as 74 and 81 GM for the compounds possessing phenol and -COOMe units at the meso-position of BODIPY treated by distyryl group with methoxy moieties, respectively. Additionally, optical and electronic properties were calculated theoretically by using the DFT method.
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Affiliation(s)
- Elif Akhuseyin Yildiz
- Department
of Physics Engineering, Faculty of Engineering,Ankara University, 06100 Beşevler-Ankara, Türkiye
| | - Bekir Asilcan Ünlü
- Department
of Physics Engineering, Faculty of Engineering,Ankara University, 06100 Beşevler-Ankara, Türkiye
| | - Ahmet Karatay
- Department
of Physics Engineering, Faculty of Engineering,Ankara University, 06100 Beşevler-Ankara, Türkiye
| | - Yasemin Bozkurt
- Department
of Metallurgical and Materials Engineering,Sivas Cumhuriyet University, 58140Sivas, Türkiye
| | - Muhammed Emre Özler
- Nanotechnology
Engineering Department, Faculty of Engineering,Sivas Cumhuriyet University, 58140 Sivas, Türkiye
| | - Fazlı Sözmen
- Nanotechnology
Engineering Department, Faculty of Engineering,Sivas Cumhuriyet University, 58140 Sivas, Türkiye
| | - Ebru Yabaş
- Advanced
Technology Application and Research Center,Sivas Cumhuriyet University, 58140 Sivas, Türkiye
| | - Bahadir Boyacioglu
- Vocational
School of Health Services,Ankara University, 06290 Kecioren-Ankara, Türkiye
| | - Hüseyin Ünver
- Department
of Physics, Faculty of Science,Ankara University, 06100 Besevler-Ankara, Türkiye
| | - Ayhan Elmali
- Department
of Physics Engineering, Faculty of Engineering,Ankara University, 06100 Beşevler-Ankara, Türkiye
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4
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Akhuseyin Yildiz E, Yabaş E, Sözmen F, Bozkurt Y, Karatay A, Boyacioglu B, Ünver H, Elmali A. Effects of Heavy Iodine Atoms and π-Expanded Conjugation on Charge Transfer Dynamics in Carboxylic Acid BODIPY Derivatives as Triplet Photosensitizers. Chemphyschem 2023; 24:e202200735. [PMID: 36377545 DOI: 10.1002/cphc.202200735] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Borondipyrromethene (BODIPY) chromophores are composed of a functional-COOH group at meso position with or without a biphenyl ring, and their compounds with heavy iodine atoms at -2, -6 positions of the BODIPY indacene core were synthesized. The photophysical properties of the compounds were studied with steady-state absorption and fluorescence measurements. It was observed that the absorption band is significantly red-shifted, and fluorescence signals are quenched in the presence of iodine atoms. In addition to that, it was indicated that the biphenyl ring does not affect the spectral shifting in the absorption as well as fluorescence spectra. In an attempt to investigate the effect of π-expanded biphenyl moieties and heavy iodine atoms on charge transfer dynamics, femtosecond transient absorption spectroscopy measurements were carried out in the environment of the tetrahydrofuran (THF) solution. Based on the performed ultrafast pump-probe spectroscopy, BODIPY compounds with iodine atoms lead to intersystem crossing (ISC) and ISC rates were determined as 150 ps and 180 ps for iodine BODIPY compounds with and without π-expanded biphenyl moieties, respectively. According to the theoretical results, the charge transfer in the investigated compounds mostly appears to be intrinsic local excitations, corresponding to high photoluminescence efficiency. These experimental findings are useful for the design and study of the fundamental photochemistry of organic triplet photosensitizers.
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Affiliation(s)
- Elif Akhuseyin Yildiz
- Department of Physics Engineering, Faculty of Engineering, Ankara University, 06100, Beşevler-Ankara, Türkiye
| | - Ebru Yabaş
- Advanced Technology Application and Research Center, Sivas Cumhuriyet University, 58140, Sivas, Türkiye
| | - Fazlı Sözmen
- Nanotechnology Engineering Department, Faculty of Engineering, Sivas Cumhuriyet University, 58140, Sivas, Türkiye
| | - Yasemin Bozkurt
- Department of Metallurgical and Materials Engineering, Sivas Cumhuriyet University, 58140, Sivas, Türkiye
| | - Ahmet Karatay
- Department of Physics Engineering, Faculty of Engineering, Ankara University, 06100, Beşevler-Ankara, Türkiye
| | - Bahadir Boyacioglu
- Vocational School of Health Services, Ankara University, 06290, Kecioren-Ankara, Türkiye
| | - Hüseyin Ünver
- Department of Physics, Faculty of Science, Ankara University, 06100, Besevler-Ankara, Türkiye
| | - Ayhan Elmali
- Department of Physics Engineering, Faculty of Engineering, Ankara University, 06100, Beşevler-Ankara, Türkiye
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5
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Saral A, Sudha P, Muthu S, Irfan A. Spectroscopic profiling, DFT computations, molecular docking and molecular dynamic simulation of biologically active 5-isoquinolinesulfonic acid. J Biomol Struct Dyn 2023; 41:722-735. [PMID: 34882072 DOI: 10.1080/07391102.2021.2011417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The title compound 5-isoquinolinesulfonic acid (5IQSA) is characterized using the FT-IR, FT-Raman, NMR and UV-Vis spectra. The optimized molecular geometry, vibrational assignments, infrared intensities and Raman scattering are precisely calculated using Density Functional Theory (DFT) with the B3LYP/6-311++G(d,p) basis set. The 1H and 13C NMR chemical shifts are computed and compared with the experimental data. The TD-DFT/M062X/6-311++G(d,p) method is used to compute UV-Vis for different solvents, and the results are compared to UV-Vis spectra obtained experimentally. The HOMO-LUMO band gap energy is calculated for various solvents and compared to the band gap of UV-Vis spectra. Molecular dynamics simulations are used to investigate the biomolecular stability. Non-Linear Optical (NLO) behaviour has been illustrated using hyperpolarizability calculations. Topological studies such as Reduced Gradient Density (RDG), Electron Localization Function (ELF) and Localized Orbital Locator (LOL) are performed. The Molecular Electrostatic Potential (MEP), Natural Bond Orbital (NBO) analysis, Fukui functions and thermodynamic properties were analysed. To explore the biological behaviour of the examined compound, molecular docking was performed to evaluate the hydrogen bond distance and binding energies with (2XA4) kinase inhibitor protein.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- A Saral
- PG and Research Department of Chemistry, Thiru. Vi. Ka. Government Arts College, Thiruvarur, Affiliated to Bharathidasan University, Tiruchirappalli, Tamil Nadu, India.,Department of Chemistry, Panimalar Institute of Technology, Chennai, Tamil Nadu, India
| | - P Sudha
- PG and Research Department of Chemistry, Thiru. Vi. Ka. Government Arts College, Thiruvarur, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Arignar Anna Government Arts College, Cheyyar, Tamil Nadu, India.,Department of Physics, Puratchi Thalaivar Dr. MGR Government Arts and Science College, Uthiramerur, Tamil Nadu, India
| | - Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
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6
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Slassi S, Aarjane M, Amine A. Novel triazole derivatives possessing imidazole: Synthesis, spectroscopic characterization (FT-IR, NMR, UV-Vis), DFT studies and antibacterial in vitro evaluation. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Cheerlin Mishma J, Bena Jothy V, Muthu S, Irfan A. Bonding nature, nucleophilic reactivity and electron excitation of NLO active 2,6 dichloroindophenol sodium salt (polar and non polar solvents) with topology analysis- bacterial pathogens study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120533] [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]
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8
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Ahmad S, Gul N, Ahmad M, Almehmadi M, Shafie A, Shah SAA, Rahman NU, Ahmad H. Isolation, crystal structure, DFT calculation and molecular docking of uncinatine-A isolated from Delphinium uncinatum. Fitoterapia 2022; 162:105268. [PMID: 35963483 DOI: 10.1016/j.fitote.2022.105268] [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: 05/12/2022] [Revised: 08/06/2022] [Accepted: 08/07/2022] [Indexed: 11/26/2022]
Abstract
The main objective of our present research work was to explore molecular insight for potentially active new acetylcholinesterase inhibitor from the aerial parts of Delphinium uncinatum. New norditerpenoid alkaloids, uncinatine-A, was isolated from the basic alkaloidal fraction of D. uncinatum, based on bioactivity guided isolation. The structure of uncinatine-A was determined through latest spectroscopic techniques including single X-Ray diffraction technique. The structural data and electronic properties of uncinatine-A was also calculated by Density Functional Theory (DFT) using B3LYP/6-31þ G (p) basis set. The isolated natural product was evaluated for their acetyl cholinesterase inhibitory potential in dose dependent protocol (62.5-1000 μg/mL), followed by molecular docking studies. Significant competitive type inhibition activity (IC50 = 207.73 ± 0.3) was shown by isolated natural norditerpenoid against cholinesterase targets in comparison with standard drugs available in the market such as galanthamine. The molecular docking results showed that isolated natural product was well accommodated by AChE in the active site with docking scores -11.0326. This is the first report indicating uncinatine-A as a potent acetylcholinesterase inhibitor and can be used as a target drug in cerebral dementia and Alzheimer diseases.
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Affiliation(s)
- Shujaat Ahmad
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, Dir (U) 18000, KP, Pakistan
| | - Nadia Gul
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan
| | - Manzoor Ahmad
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan.
| | - Mazen Almehmadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O Box 11099, Taif 21944, Saudi Arabia
| | - Alaa Shafie
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, P.O Box 11099, Taif 21944, Saudi Arabia
| | - Syed Adnan Ali Shah
- Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia; Atta-Ur-Rahman Institute for Natural Products Discovery (AuRIns), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam 42300, Selangor, Malaysia
| | - Najeeb Ur Rahman
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan
| | - Hanif Ahmad
- Department of Chemistry, University of Malakand, Chakdara, Dir (L) 18550, KP, Pakistan.
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9
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Sharma A, Fatima A, Malla MA, Khanum G, Kumar A, Singh M, Abualnaja KM, Althubeiti K, Muthu S, Siddiqui N, Javed S. Molecular Docking, Dynamic Simulation and DFT Approach to Noble “2-Hydrazinobenzothiazole” Compound. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2089176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Arun Sharma
- S.O.S in Chemistry, Jiwaji University, Gwalior, Madhya Pradesh, India
| | - Aysha Fatima
- S.O.S in Chemistry, Jiwaji University, Gwalior, Madhya Pradesh, India
| | - Manzoor A. Malla
- S.O.S in Chemistry, Jiwaji University, Gwalior, Madhya Pradesh, India
| | - Ghazala Khanum
- S.O.S in Chemistry, Jiwaji University, Gwalior, Madhya Pradesh, India
| | - Anuj Kumar
- Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai, India
| | - Meenakshi Singh
- Department of Chemistry, Institute of H. Science, Khandari, Dr. Bhimrao Ambedkar University, Agra, Uttar Pradesh, India
| | - Khamael M. Abualnaja
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - Khaled Althubeiti
- Department of Chemistry, College of Science, Taif University, Taif, Saudi Arabia
| | - S. Muthu
- Department of Physics, Aringnar Anna Govt. Arts College, Cheyyar, India
| | - Nazia Siddiqui
- Department of Chemistry, Dayal Bagh Educational Institute, Agra, Uttar Pradesh, India
| | - Saleem Javed
- Department of Chemistry, Institute of H. Science, Khandari, Dr. Bhimrao Ambedkar University, Agra, Uttar Pradesh, India
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Janani S, Rajagopal H, Muthu S, Javed S, Irfan A. Structural, electronic properties (different solvents), chemical reactivity, ELF, LOL, spectroscopic insights, molecular docking and in vitro anticancer activity studies on methyl (4-nitro-1-imidazolyl)acetate. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100438] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Upendranath K, Venkatesh T, Shashank M, Nagaraju G, Pasha KMM. One-pot synthesis of some new 7‑hydroxy-5-(4-substitutedphenyl)-9-methyl-1,5-dihydro-2H-dipyrimido[1,2-a:4′,5′-d]pyrimidine-2,4(3H)‑dione derivatives and it's optoelectronic, DFT, photocatalytic studies and latent fingerprint applications. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131930] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Saral A, Sudha P, Muthu S, Sevvanthi S, Irfan A. Molecular structure spectroscopic Elucidation, IEFPCM solvation (UV–Vis, MEP, FMO, NBO, NLO), molecular docking and biological assessment studies of lepidine (4-Methylquinoline). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118249] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Arulaabaranam K, Muthu S, Mani G, Irfan A. Conformational study, FT-IR, FT-Raman, solvent effect on UV–Vis, charge transfer and protein–ligand interactions of Methyl-2-pyrazinecarboxylate. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116934] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Shyni V, Leenaraj DR, Ittyachan R, Joseph L, Sajan D. Anticancer activity of indapamide adsorbed on gold nanoparticles: DFT, in-silico, and in-vitro analysis. J Mol Recognit 2021; 34:e2920. [PMID: 34114274 DOI: 10.1002/jmr.2920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/25/2021] [Indexed: 11/11/2022]
Abstract
The adsorption properties of the lung cancer agent indapamide (IND) on gold nanoparticles (AuNPs), were studied with the help of surface-enhanced Raman scattering techniques. The structure-activity of the IND and INDA molecule has been studied using DFT/B3LYP methodology. NBO analysis reveals that, both the molecules are stabilized by a C─H… O intramolecular hydrogen bonding, apart from the conjugative and intramolecular charge transfer interactions. The analysis of the electron density of frontier molecular orbital analysis gives a comparative idea of the reactivity, the low kinetic stability, and low value of energy gap indicating the electron transport in the molecule and thereby its bioactivity. The molecular electrostatic potential, local and global reactivity indicators predict the reactive site of the molecules. FT-IR, FT-Raman, and surface-enhanced Raman scattering have been investigated and compared with the theoretical prediction. Effective in-silico (molecular docking) biological activity screening of the molecules was checked on lung cancer cells. In-vitro (surface-enhanced Raman scattering techniques and MTT assay) analysis confirms the results from the in-silico analysis. This study promotes the potential of SERS agents for targeted drug delivery and photothermal therapy and the novelty of the IND and INDA molecule against lung cancer activity.
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Affiliation(s)
- V Shyni
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, Kerala, 690110, India
| | - D R Leenaraj
- Department of Physics, Mar Ivanios College, Thiruvananthapuram, India
| | - Reena Ittyachan
- Department of Physics, Sacred Heart College, Thrissur, India
| | - Lynnette Joseph
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, Kerala, 690110, India
| | - D Sajan
- Centre for Advanced Functional Materials, Department of Physics, Bishop Moore College, Mavelikara, Kerala, 690110, India
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15
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Spectroscopic (FT-IR, FT-Raman, UV-Vis) molecular structure, electronic, molecular docking, and thermodynamic investigations of indole-3-carboxylic acid by DFT method. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130182] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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16
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Jenepha Mary SJ, Pradhan S, James C. Molecular structure, NBO analysis of the hydrogen-bonded interactions, spectroscopic (FT-IR, FT-Raman), drug likeness and molecular docking of the novel anti COVID-2 molecule (2E)-N-methyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]-hydrazinecarbothioamide (Dimer) - quantum chemical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119388. [PMID: 33503560 PMCID: PMC7834302 DOI: 10.1016/j.saa.2020.119388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/04/2020] [Accepted: 12/24/2020] [Indexed: 05/14/2023]
Abstract
Prospective antiviral molecule (2E)-N-methyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]-hydrazinecarbothioamide has been probed using Fourier transform infrared (FTIR), FT-Raman and quantum chemical computations. The geometry equilibrium and natural bond orbital analysis have been carried out with density functional theory employing Becke, 3-parameter, Lee-Yang-Parr method with the 6-311G++(d,p) basis set. The vibrational assignments pertaining to different modes of vibrations have been augmented by normal coordinate analysis, force constant and potential energy distributions. Drug likeness and oral activity have been carried out based on Lipinski's rule of five. The inhibiting potency of 2(2E)-methyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]-hydrazinecarbothioamide has been investigated by docking simulation against SARS-CoV-2 protein. The optimized geometry shows a planar structure between the chromone and the side chain. Differences in the geometries due to the substitution of the electronegative atom and intermolecular contacts due to the chromone and hydrazinecarbothioamide were analyzed. NBO analysis confirms the presence of two strong stable hydrogen bonded NH⋯O intermolecular interactions and two weak hydrogen bonded CH⋯O interactions. The red shift in NH stretching frequency exposed from IR substantiates the formation of NH⋯O intermolecular hydrogen bond and the blue shift in CH stretching frequency substantiates the formation of CH⋯O intermolecular hydrogen bond. Drug likeness, absorption, distribution, metabolism, excretion and toxicity property gives an idea about the pharmacokinetic properties of the title molecule. The binding energy of the nonbonding interaction with Histidine 41 and Cysteine 145, present a clear view that 2(2E)-methyl-2-[(4-oxo-4H-chromen-3-yl)methylidene]-hydrazinecarbothioamide can irreversibly interact with SARS-CoV-2 protease.
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Affiliation(s)
- S J Jenepha Mary
- Department of Physics and Research Centre, Scott Christian College (Autonomous), Nagercoil 629003, Tamil Nadu, Affiliated to Manonmaniam Sundarnar University, Abishekapatti, Tirunelveli 627012, India
| | - Sayantan Pradhan
- Department of Chemistry, Jadavpur University, Kolkata 700 032, West Bengal, India
| | - C James
- Department of Physics and Research Centre, Scott Christian College (Autonomous), Nagercoil 629003, Tamil Nadu, Affiliated to Manonmaniam Sundarnar University, Abishekapatti, Tirunelveli 627012, India.
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17
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Spectroscopic (FT-IR, FT-Raman) investigations, quantum chemical calculations, ADMET and molecular docking studies of phloretin with B-RAF inhibitor. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01576-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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Molecular structure, spectroscopic (FT-IR, FT-Raman, NMR), HOMO-LUMO, chemical reactivity, AIM, ELF, LOL and Molecular docking studies on 1-Benzyl-4-(N-Boc-amino)piperidine. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129657] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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19
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Saminathan M, Jayakumar MR, Chandrasekaran R, Raja R, George J, Alagusundaram P. Synthesis, spectral, crystal structure, drug‐likeness, in silico, and in vitro biological screening of halogen [Cl, Br] substituted
N
‐phenylbenzo
[
g
]indazole derivatives as antimicrobial agents. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Murugavel Saminathan
- Department of Physics Thanthai Periyar Government Institute of Technology Vellore India
| | - Mohan Raj Jayakumar
- Department of Physics Thanthai Periyar Government Institute of Technology Vellore India
| | | | - Ranganathan Raja
- Department of Chemistry PRIST Deemed to be University, Madurai Campus Sivagangai India
| | - Jaabil George
- Department of Organic Chemistry, School of Chemistry Madurai Kamaraj University Madurai India
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20
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Madrid-Úsuga D, Mora-León AG, Cabrera-Espinoza AM, Insuasty B, Ortiz A. Theoretical characterization of photoactive molecular systems based on BODIPY-derivatives for the design of organic solar cells. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Dana P, Shamlouei HR, Maleki A, Shirvan SA. Push–pull effect to improve the electronic and optical properties of [7] circulene. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Payam Dana
- Department of Chemistry, Omidiyeh Branch Islamic Azad University Omidiyeh Iran
| | - Hamid Reza Shamlouei
- Department of Chemistry, Omidiyeh Branch Islamic Azad University Omidiyeh Iran
- Department of Chemistry Lorestan University Khorramabad Iran
| | - Afsaneh Maleki
- Department of Chemistry, Omidiyeh Branch Islamic Azad University Omidiyeh Iran
| | - Sadif A. Shirvan
- Department of Chemistry, Omidiyeh Branch Islamic Azad University Omidiyeh Iran
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22
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Noureddine O, Issaoui N, Medimagh M, Al-Dossary O, Marouani H. Quantum chemical studies on molecular structure, AIM, ELF, RDG and antiviral activities of hybrid hydroxychloroquine in the treatment of COVID-19: Molecular docking and DFT calculations. JOURNAL OF KING SAUD UNIVERSITY SCIENCE 2021; 33:101334. [PMID: 33432258 PMCID: PMC7787522 DOI: 10.1016/j.jksus.2020.101334] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/21/2020] [Accepted: 12/25/2020] [Indexed: 01/18/2023]
Abstract
Structure-activity relationships for hydroxychloroquine compound and its derivatives resulted in a potent antiviral activity. Where hydroxychloroquine derivatives showed an apparent efficacy against coronavirus related pneumonia. For this reason, the current study is focused on the structural properties of hydroxychloroquine and hydroxychloroquine sulfate. Optimized structures of these molecules have been reported by using DFT method at B3LYP/6-31G* level of theory. The geometric were determined and compared with the experimental crystal structure. The intra and intermolecular interactions which exist within these compounds are analyzed by different methods namely the topological analysis AIM, ELF and the reduced gradient of the density. These approaches make it possible in particular to study the properties of hydrogen bonds. The highest occupied molecular orbital and the lowest unoccupied molecular orbital energy levels are constructed and the corresponding frontier energy gaps are determined to realize the charge transfer within the molecule. The densities of state diagrams were determined to calculate contributions to the molecular orbitals. The molecular electrostatic potential surfaces are determined to give a visual representation of charge distribution of these ligands and to provide information linked to electrophilic and nucleophilic sites localization. Finally, these derivatives were evaluated for the inhibition of COVID-19 activity by using the molecular docking method.
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Affiliation(s)
- Olfa Noureddine
- University of Monastir, Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, Monastir 5079, Tunisia
| | - Noureddine Issaoui
- University of Monastir, Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, Monastir 5079, Tunisia
| | - Mouna Medimagh
- University of Monastir, Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, Monastir 5079, Tunisia
| | - Omar Al-Dossary
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Houda Marouani
- University of Carthage, Laboratory of Chemistry of Materials (LR13ES08), Faculty of Sciences of Bizerte, 7021, Tunisia
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23
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Sagdinc SG, Akcay BK, Yildiz SZ, Isik IB. Single-crystal X-ray structural characterization, Hirshfeld surface analysis, electronic properties, NBO, and NLO calculations and vibrational analysis of the monomeric and dimeric forms of 5-nitro-2-oxindole. NEW J CHEM 2021. [DOI: 10.1039/d1nj00264c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The information of interactions is given by RDG versus sign(λ2)ρ product of the sign of the second largest eigenvalue of electron density Hessian matrix and electron density) investigated by RDG surface analysis.
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Affiliation(s)
| | - Banu Kevser Akcay
- Department of Physics, Science and Art Faculty
- Kocaeli University
- 41380 Umuttepe
- Turkey
| | - Salih Zeki Yildiz
- Department of Chemistry
- Faculty of Arts and Sciences
- Sakarya University
- 54187 Serdivan
- Turkey
| | - Ilknur Baldan Isik
- Department of Physics, Science and Art Faculty
- Kocaeli University
- 41380 Umuttepe
- Turkey
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24
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Arulaabaranam K, Muthu S, Mani G, Sevvanthi S. Quantum mechanical computation, spectroscopic exploration and molecular docking analysis of 2-Bromo-4-fluoroacetanilide. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Spectroscopic (FT-IR, FT-RAMAN, NMR, UV–Vis) investigations, computational analysis and molecular docking study of 5-bromo-2-hydroxy pyrimidine. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128494] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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26
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Shafi A, Timiri Sathyamurthy RD, Seetharaman J, Sambanthan M, Murugesan R, Sundaram S, Bhanumathy Ramarathinam R. Molecular docking, quantum chemical computational and vibrational studies on bicyclic heterocycle "6-nitro-2,3-dihydro-1,4-benzodioxine": Anti-cancer agent. Comput Biol Chem 2020; 86:107226. [PMID: 32142983 DOI: 10.1016/j.compbiolchem.2020.107226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/15/2020] [Accepted: 01/26/2020] [Indexed: 10/24/2022]
Abstract
The heterocyclic aromatic compounds are primarily used to make pharmaceutical and agrochemicals. In addition, these compounds can be chosen as antioxidants, corrosion inhibitors, electro and opto-electronic devices, polymer material, dye stuff, developers, etc. On the account of this, the heterocyclic aromatic 6-nitro-2,3-dihydro-1,4-benzodioxine (6N3DB) was chosen and the structure is optimized to predict the important properties of it. The structural parameters such as bond length and bond angle have been obtained by DFT/B3LYP/6-311++G(d,p) basis set to know the geometry and orientation of 6N3DB. The molecule has been characterized by FT-IR and FT-Raman spectroscopic techniques to predict the functional groups, vibrational modes and aromatic nature of 6N3DB. The chemical shifts of 1H and 13C have been obtained experimentally and compared with the theoretical data. The parameters such as the band gap between HOMO-LUMO orbitals, λmax, and electron transition probability in frontier orbitals have been estimated to know the NLO and corrosion inhibition activity. HOMO-LUMO orbital diagram has been obtained for different energy levels and their band gap energies have been compared with UV-vis band gap values. The chemical significance of the molecule has been explained using ELF, LOL, and RDG. The binding energy and intermolecular energy values indicate that the title compound possesses anti-cancer property through hydrolase inhibition activity.
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Affiliation(s)
- Aayisha Shafi
- Research and Development Centre, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; Department of Physics, Meenakshi College for Women, Chennai, 600024, Tamilnadu, India
| | | | - Janani Seetharaman
- Department of Physics, Queen Mary's College, Chennai, 600005, Tamilnadu, India
| | - Muthu Sambanthan
- Department of Physics, Arignar Anna Govt.Arts College, Cheyyar, 604407, Tamilnadu, India.
| | - Raja Murugesan
- Department of Physics, Govt. Thirumagal Mill's College, Gudiyattam, 632602, Tamilnadu, India
| | - Sevvanthi Sundaram
- Department of Physics, Arignar Anna Govt.Arts College, Cheyyar, 604407, Tamilnadu, India
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27
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Prediction of structural, vibrational and nonlinear optical properties of small organic conjugated molecules derived from pyridine. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.01.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Ahmad H, Ahmad S, Khan E, Shahzad A, Ali M, Tahir MN, Shaheen F, Ahmad M. Isolation, crystal structure determination and cholinesterase inhibitory potential of isotalatizidine hydrate from Delphinium denudatum. PHARMACEUTICAL BIOLOGY 2017; 55:680-686. [PMID: 28033733 PMCID: PMC6130761 DOI: 10.1080/13880209.2016.1240207] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 09/19/2016] [Indexed: 06/01/2023]
Abstract
CONTEXT Delphinium denudatum Wall (Ranunculaceae) is a rich source of diterpenoid alkaloids and is widely used for the treatment of various neurological disorders such as epilepsy, sciatica and Alzheimer's disease. OBJECTIVE The present study describes crystal structure determination and cholinesterase inhibitory potential of isotalatazidine hydrate isolated from the aerial part of Delphinium denudatum. MATERIALS AND METHODS Phytochemical investigation of Delphinium denudatum resulted in the isolation of isotalatazidine hydrate in crystalline form. The molecular structure of the isolated compound was established by X-ray diffraction. The structural data (bond length and angles) of the compound were calculated by Density Functional Theory (DFT) using B3LYP/6-31 + G (p) basis set. The cholinesterase inhibitory potential of the isolated natural product was determined at various concentrations (62.5, 125, 250, 500 and 1000 μg/mL) followed by molecular docking to investigate the possible inhibitory mechanism of isotalatazidine hydrate. RESULTS The compound crystallized in hexagonal unit cell with space group P65. Some other electronic properties such as energies associated with HOMO-LUMO, band gaps, global hardness, global electrophilicity, electron affinity and ionization potential were also calculated by means of B3LYP/6-31 + G (p) basis set. The compound showed competitive type inhibition of both acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) with IC50 values of 12.13 μM and 21.41 μM, respectively. DISCUSSION AND CONCLUSION These results suggest that isotalatazidine hydrate is a potent dual cholinesterase inhibitor and can be used as a target drug in Alzheimer diseases. This is first report indicating isotalatazidine hydrate with anticholinesterase potential.
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Affiliation(s)
- Hanif Ahmad
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
| | - Shujaat Ahmad
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal, KP, Pakistan
| | - Ezzat Khan
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
| | - Adnan Shahzad
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
| | - Mumtaz Ali
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
| | | | - Farzana Shaheen
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences (ICCBS) University of Karachi, Karachi, Pakistan
| | - Manzoor Ahmad
- Department of Chemistry, University of Malakand, ChakdaraKP, Pakistan
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29
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Zarei SA, Piltan M, Mashhun A, Rudbari HA, Bruno G. 2,2′-[(Disulfanediyl)bis{5-[(1E)-(2-hydroxybenzylidene)amino]-1,3-thiazole-4,2-diyl}]diphenol: synthesis, crystal structure and calculation of molecular hyperpolarizability. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:609-612. [DOI: 10.1107/s2053229617008257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/02/2017] [Indexed: 11/10/2022]
Abstract
The title Schiff base compound {systematic name: 2-[5-[(E)-(2-hydroxybenzylidene)amino]-4-(2-{5-[(E)-(2-hydroxybenzylidene)amino]-2-(2-hydroxyphenyl)-1,3-thiazol-4-yl}disulfanyl)-1,3-thiazol-2-yl]phenol}, C32H22N4O4S4, incorporating a disulfanediyl (dithio) linkage, was obtained from the condensation reaction between two equivalents of salicylaldehyde and one equivalent of dithiooxamide in dimethylformamide, and was characterized by elemental analysis, IR spectroscopic analysis and single-crystal X-ray diffraction. A one-dimensional chain is formed along the b axis via double intermolecular C—H...S hydrogen bonds. The HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) energies and some related molecular parameters were calculated at the B3LYP/6-311G(d,p) level of theory. The molecular hyperpolarizability was also calculated.
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30
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Chahkandi M, Bhatti MH, Yunus U, Shaheen S, Nadeem M, Tahir MN. Synthesis and comprehensive structural studies of a novel amide based carboxylic acid derivative: Non–covalent interactions. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Ahmad S, Ahmad H, Khan HU, Shahzad A, Khan E, Ali Shah SA, Ali M, Wadud A, Ghufran M, Naz H, Ahmad M. Crystal structure, phytochemical study and enzyme inhibition activity of Ajaconine and Delectinine. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.06.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Zarei SA, Khaledian D, Akhtari K, Hassanzadeh K. Copper(II) and nickel(II) complexes of tetradentate Schiff base ligand: UV-Vis and FT-IR spectra and DFT calculation of electronic, vibrational and nonlinear optical properties. Mol Phys 2015. [DOI: 10.1080/00268976.2015.1018356] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Zarei SA, Piltan M, Hassanzadeh K, Akhtari K, Cinčić D. Synthesis, characterization, crystal structure and predicting the second-order optical nonlinearity of a new dicobalt(III) complex with Schiff base ligand. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.11.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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34
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Swarnalatha N, Gunasekaran S, Muthu S, Nagarajan M. Molecular structure analysis and spectroscopic characterization of 9-methoxy-2H-furo[3,2-g]chromen-2-one with experimental (FT-IR and FT-Raman) techniques and quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:721-729. [PMID: 25262140 DOI: 10.1016/j.saa.2014.08.125] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 08/18/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
Experimental and theoretical investigations on the molecular structure, electronic and vibrational characteristics of 9-methoxy-2H-furo[3,2-g]chromen-2-one (9M2HFC) were presented. The vibrational frequencies were obtained by DFT/B3LYP calculations employing 6-311++G(d,p) basis set, were compared with experimental FT-IR and FT-Raman spectral data. The FT-IR spectrum (4000-400 cm(-1)) and FT-Raman spectrum (4000-100 cm(-1)) in solid phase were recorded for 9M2HFC. The geometry of the title compound was fully optimized. Quantum chemical calculations of the equilibrium geometry, the complete vibrational assignments of wavenumbers using potential energy distribution (PED) calculated with scaled quantum mechanics infrared intensities, Raman activities of the title molecule was reported. HOMO-LUMO energies, molecular electrostatic potential, Mulliken population analysis on atomic charges, natural bond orbital (NBO) analysis, non linear optical behavior in terms of first order hyperpolarizability, and thermodynamic properties of the title molecule were carried out. Finally, simulated FT-IR and FT-Raman spectra showed good agreement with the observed spectra.
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Affiliation(s)
- N Swarnalatha
- Department of Physics, SCSVMV University, Enathur, Kanchipuram, Tamil Nadu, India.
| | - S Gunasekaran
- St. Peter's University, Avadi, Chennai, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur, Tamil Nadu, India
| | - M Nagarajan
- Department of Physics, Arulmigu PalaniAndavar College of Arts and Culture, Palani, India
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Renuga Devi TS, Sharmi kumar J, Ramkumaar GR. DFT analysis on the molecular structure, vibrational and electronic spectra of 2-(cyclohexylamino)ethanesulfonic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:761-777. [PMID: 25262144 DOI: 10.1016/j.saa.2014.08.121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 08/12/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
The FTIR and FT-Raman spectra of 2-(cyclohexylamino)ethanesulfonic acid were recorded in the regions 4000-400 cm(-1) and 4000-50 cm(-1) respectively. The structural and spectroscopic data of the molecule in the ground state were calculated using Hartee-Fock and Density functional method (B3LYP) with the correlation consistent-polarized valence double zeta (cc-pVDZ) basis set and 6-311++G(d,p) basis set. The most stable conformer was optimized and the structural and vibrational parameters were determined based on this. The complete assignments were performed based on the Potential Energy Distribution (PED) of the vibrational modes, calculated using Vibrational Energy Distribution Analysis (VEDA) 4 program. With the observed FTIR and FT-Raman data, a complete vibrational assignment and analysis of the fundamental modes of the compound were carried out. Thermodynamic properties and Atomic charges were calculated using both Hartee-Fock and density functional method using the cc-pVDZ basis set and compared. The calculated HOMO-LUMO energy gap revealed that charge transfer occurs within the molecule. (1)H and (13)C NMR chemical shifts of the molecule were calculated using Gauge Including Atomic Orbital (GIAO) method and were compared with experimental results. Stability of the molecule arising from hyperconjugative interactions, charge delocalization have been analyzed using Natural Bond Orbital (NBO) analysis. The first order hyperpolarizability (β) and Molecular Electrostatic Potential (MEP) of the molecule was computed using DFT calculations. The electron density based local reactivity descriptor such as Fukui functions were calculated to explain the chemical reactivity site in the molecule.
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Affiliation(s)
- T S Renuga Devi
- Department of Physics, Women's Christian College, College Road, Chennai 600006, TN, India.
| | - J Sharmi kumar
- P.G. Department of Physics, Women's Christian College, College Road, Chennai 600006, TN, India; Department of Physics, Periyar University, Salem 636011, TN, India
| | - G R Ramkumaar
- Department of Physics, C. Kandaswami Naidu College for Men in Anna Nagar East, Chennai 600102, TN, India
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Bhavani K, Renuga S, Muthu S, Sankara Narayanan K. Quantum mechanical study and spectroscopic (FT-IR, FT-Raman, (13)C, (1)H) study, first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of 2-acetoxybenzoic acid by density functional methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1260-1268. [PMID: 25456668 DOI: 10.1016/j.saa.2014.10.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 07/18/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
In this work, colorless crystals of 2-acetoxybenzoic acid were grown by slow evaporation method and the FT-IR and FT-Raman spectra of the sample were recorded in the region 4000-500cm(-1) and 4000-100cm(-1) respectively. Molecular structure is optimized with the help of density functional theory method (B3LYP) with 6-31+G(d,p), 6-311++G(d,p) basis sets. Stability of the molecule arising from hyperconjugation and charge delocalization is confirmed by the natural bond orbital analysis (NBO). The results show that electron density (ED) in the σ(∗) antibonding orbitals and E(2) energies confirms the occurrence of intramolecular charge transfer (ICT) within the molecule. The assignments of the vibrational spectra have been carried out with the help of normal coordinate analysis following the scaled quantum mechanical force field (SQMFF) methodology. The results of the calculations were applied to simulated spectra of the title compound, which show excellent agreement with observed spectra. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by GIAO method. Mulliken population analysis on atomic charges is also calculated. The calculated HOMO and LUMO energy gap shows that charge transfer occurs within the molecule.
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Affiliation(s)
- K Bhavani
- Department of Physics, SRM University, Chennai, Tamil Nadu, India
| | - S Renuga
- Department of Physics, Indira Institute of Enginnering and Technology, Thiruvallur, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Sri Venkateswara College of Engg, Sriperumbudur 602105, Tamil Nadu, India.
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37
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Swarnalatha N, Gunasekaran S, Nagarajan M, Srinivasan S, Sankari G, Ramkumaar GR. Vibrational, UV spectra, NBO, first order hyperpolarizability and HOMO-LUMO analysis of carvedilol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt B:567-578. [PMID: 25448957 DOI: 10.1016/j.saa.2014.09.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/09/2014] [Accepted: 09/18/2014] [Indexed: 06/04/2023]
Abstract
In this work, we have investigated experimentally and theoretically on the molecular structure, vibrational spectra, UV spectral analysis and NBO studies of cardio-protective drug carvedilol. The FT-Raman and FT-IR spectra for carvedilol in the solid phase have been recorded in the region 4000-100 cm(-1) and 4000-400 cm(-1) respectively. Theoretical calculations were performed by using density functional theory (DFT) method at B3LYP/6-31G(d,p) and B3LYP/6-31++G(d,p) basis set levels. The harmonic vibrational frequencies, the optimized geometric parameters have been interpreted and compared with the reported experimental values. The complete vibrational assignments were performed on the basis of potential energy distribution (PED) of the vibrational modes. The thermodynamic properties and molecular electrostatic potential surfaces of the molecule were constructed. The electronic absorption spectrum was recorded in the region 400-200 nm and electronic properties such as HOMO and LUMO energies were calculated. The stability of the molecule arising from hyper conjugative interactions and charge delocalization have been analyzed from natural bond orbital (NBO) analysis. The first order hyperpolarizability of the title molecule was also calculated. The photo stability of carvedilol under different storage conditions were analyzed using UV-Vis spectral technique.
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Affiliation(s)
- N Swarnalatha
- Department of Physics, SCSVMV University, Enathur, Kanchipuram 631561, TN, India.
| | - S Gunasekaran
- Research and Development, St. Peter's Institute of Higher Education and Research, St. Peter's University, Avadi, Chennai 600054, TN, India
| | - M Nagarajan
- Department of Physics, Arulmigu Palani Andavar College of Arts and Culture, Palani 624601, TN, India
| | - S Srinivasan
- PG and Research Department of Physics, Presidency College, Chennai 600005, TN, India
| | - G Sankari
- Department of Physics, Meenakshi College for Women, Chennai 600024, TN, India
| | - G R Ramkumaar
- Department of Physics, C. Kandaswami Naidu College for Men in Anna Nagar East, Chennai 600102, TN, India
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