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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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2
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Sharma P, Bhogal S, Mohiuddin I, Yusuf M, Malik AK. Fluorescence "Turn-off" Sensing of Iron (III) Ions Utilizing Pyrazoline Based Sensor: Experimental and Computational Study. J Fluoresc 2022; 32:2319-2331. [PMID: 36131167 DOI: 10.1007/s10895-022-03024-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/02/2022] [Indexed: 11/30/2022]
Abstract
A simple pyrazoline-based ''turn off'' fluorescent sensor 5-(4-methoxyphenyl)-3-(5-methylfuran-2-yl)-1-phenyl-4,5-dihydro-1H-pyrazole (PFM) was synthesized and well characterized by different techniques such as FT-IR, 1H-NMR, 13C-NMR, and mass spectrometry. The synthesized sensor PFM was utilized for the detection of Fe3+ ions. Fluorescence emission selectively quenched by Fe3+ ions compared to other metal ions (Mn2+, Al3+, Fe2+, Hg2+, Cu2+, Co2+, Ni2+, Cd2+, Pb2+, and Zn2+) via paramagnetic fluorescence quenching and showed good anti-interference ability over the existence of other tested metals. Under optimum conditions, the fluorescence intensity of sensor quenched by Fe3+ in the range of 0 to 3 μM with detection limit of 0.12 μM. Binding of Fe3+ ions to PFM solution were studied by fluorescent titration, revealed formation of 1:1 PFM-Fe metal complex and binding constant of complex was found to be of 1.3 × 105 M-1. Further, the fluorescent sensor has been potentially used for the detection of Fe3+ in environmental samples (river water, tap water, and sewage waste water) with satisfactory recovery values of 99-101%.
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Affiliation(s)
- Promila Sharma
- Department of Chemistry, Punjabi University, Patiala, 147002, Punjab, India
| | - Shikha Bhogal
- Department of Chemistry, Punjabi University, Patiala, 147002, Punjab, India
| | - Irshad Mohiuddin
- Department of Chemistry, Punjab University, Chandigarh, 160014, Punjab, India
| | - Mohamad Yusuf
- Department of Chemistry, Punjabi University, Patiala, 147002, Punjab, India
| | - Ashok Kumar Malik
- Department of Chemistry, Punjabi University, Patiala, 147002, Punjab, India.
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3
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A potent anesthetic drug salt: experimental and computational studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Dorafshan Tabatabai AS, Dehghanian E, Mansouri-Torshizi H. Probing the interaction of new and biologically active Pd(II) complex with DNA/BSA via joint experimental and computational studies along with thermodynamic, NLO, FMO and NBO analysis. Biometals 2022; 35:245-266. [PMID: 35039973 DOI: 10.1007/s10534-022-00362-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/06/2022] [Indexed: 01/09/2023]
Abstract
Treatment with transition metal complexes is an efficient method to fight with cancer. Therefore, a new transition metal complex formulated as [Pd(1, 3-pn)(acac)]Cl (pn and acac stand for propylendiamine and acetylacetonate, respectively) was synthesized and analyzed using 1H NMR, Fourier transform infrared, electronic absorption spectroscopy techniques as well as elemental analysis and conductivity measurement. The geometry optimization, frontier molecular orbital (FMO) analysis, molecular electrostatic potential (MEP), natural bond orbital (NBO) analysis and nonlinear optical (NLO) property were accomplished by density functional theory (DFT) at B3LYP level with 6-311G(d,p)/aug-cc-pVTZ-PP basis set. Preliminary determination of antitumor activity and lipophilicity of this metal complex was performed experimentally and the promising results were obtained. This encouraged us to study the interaction and binding mode/modes of this complex with DNA as the primary receptor for the chemotropic drugs and BSA as the transporter protein in the circulatory system. For this reason, the binding of newly made complex was assessed in-vitro under physiological state using experimental and in-silico molecular modeling studies. So, the CT-DNA binding study of this complex was explored using spectrofluorometric as well as spectrophotometric techniques, viscosity and gel electrophoresis experiments. Furthermore, fluorescence, UV-Vis, F[Formula: see text]rster resonance energy transfer and circular dichroism studies were carried out for BSA binding. The experimental and computational interaction studies showed that [Pd(1, 3-pn)(acac)]Cl complex binds to the minor groove of CT-DNA and interacts with BSA by van der Waals forces and hydrogen bond.
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Affiliation(s)
| | - Effat Dehghanian
- Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran.
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5
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Fallah baneh kohal R, Tarahhomi A. Evaluation of structural, spectroscopic, bonding and electronic properties of some organotin(IV)-phosphoric triamide complexes by using help of DFT, QTAIM and Hirshfeld surface investigations. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2020.113098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Sindhusha S, Padma C, Gunasekaran B. Crystal structure, spectroscopic characterization, mechanical, thermal and theoretical investigations on creatininium benzenesulfonate - A new organic NLO single crystal. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128863] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Serdaroğlu G, Şahin-Bölükbaşı S, Barut-Celepci D, Sevinçek R, Şahin N, Gürbüz N, Özdemir İ. Synthesis, in vitro anticancer activities, and quantum chemical investigations on 1,3-bis-(2-methyl-2-propenyl)benzimidazolium chloride and its Ag(I) complex. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820950219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
1,3- Bis-(2-methyl-2-propenyl)benzimidazolium chloride and its Ag(I) complex are synthesized and the structures are elucidated using spectroscopies techniques. The molecular and crystal structures of the benzimidazolium salt are confirmed by X-ray crystallography. The molecular geometries of the benzimidazolium and its Ag(I) salt are analyzed using the B3LYP functional with the 6–311+G(d,p)/LANL2DZ basis set. The observed Fourier transform infrared and nuclear magnetic resonance isotropic shifts are compared with the calculated values. Besides, the quantum chemical identifiers, significant intramolecular interactions, and molecular electrostatic potential plots are used to show the tendency/site of the chemical reactivity behavior. The three-dimensional Hirshfeld surfaces and the associated two-dimensional fingerprint plots are applied to obtain an insight into the behavior of the interactions in the crystal. Both compounds are tested for their in vitro anticancer activities against DU-145 and MCF-7 cancer cells and L-929 non-cancer cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay.
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Affiliation(s)
- Goncagül Serdaroğlu
- Department of Science Education, Faculty of Education, Sivas Cumhuriyet University, Sivas, Turkey
| | - Serap Şahin-Bölükbaşı
- Department of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, Turkey
| | - Duygu Barut-Celepci
- Department of Physics, Faculty of Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Resul Sevinçek
- Department of Physics, Faculty of Sciences, Dokuz Eylül University, İzmir, Turkey
| | - Neslihan Şahin
- Department of Basic Education, Faculty of Education, Sivas Cumhuriyet University, Sivas, Turkey
- Department of Chemistry, Faculty of Arts and Sciences, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
| | - Nevin Gürbüz
- Department of Chemistry, Faculty of Arts and Sciences, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
| | - İsmail Özdemir
- Department of Chemistry, Faculty of Arts and Sciences, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
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8
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Tarahhomi A, Van Der Lee A. A new six-coordinate organotin(IV) complex of OP[NC5H10]3: A comparison with an analogous five-coordinate complex by means of X-ray crystallography, Hirshfeld surface analysis and DFT calculations. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1461847] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Arie Van Der Lee
- Institut Européen des Membranes, Université de Montpellier, Montpellier, France
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Thirumurugan R, Babu B, Anitha K, Chandrasekaran J. Experimental and density functional theory (DFT): A dual approach to probe the key properties of creatininium l -tartrate monohydrate single crystal for nonlinear optical applications. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Pandey M, Muthu S, Nanje Gowda N. Quantum mechanical and spectroscopic (FT-IR, FT-Raman,1H,13C NMR, UV-Vis) studies, NBO, NLO, HOMO, LUMO and Fukui function analysis of 5-Methoxy-1H-benzo[d]imidazole-2(3H)-thione by DFT studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.064] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Karabacak M, Calisir Z, Kurt M, Kose E, Atac A. The spectroscopic (FT-IR, FT-Raman, dispersive Raman and NMR) study of ethyl-6-chloronicotinate molecule by combined density functional theory. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 153:754-770. [PMID: 26483317 DOI: 10.1016/j.saa.2015.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 09/03/2015] [Accepted: 09/10/2015] [Indexed: 06/05/2023]
Abstract
In this study, ethyl-6-chloronicotinate (E-6-ClN) molecule is recorded in the region 4000-400 cm(-1) and 3500-100 cm(-1) (FT-IR, FT-Raman and dispersive Raman, respectively) in the solid phase. ((1))H and ((13))C nuclear magnetic resonance (NMR) spectra are recorded in DMSO solution. The structural and spectroscopic data of the molecule are obtained for two possible isomers (S1 and S2) from DFT (B3LYP) with 6-311++G(d,p) basis set calculations. The geometry of the molecule is fully optimized, vibrational spectra are calculated and fundamental vibrations are assigned on the basis of the potential energy distribution (PED) of the vibrational modes. ((1))H and ((13))C NMR chemical shifts are calculated by using the gauge-invariant atomic orbital (GIAO) method. The electronic properties, such as excitation energies, oscillator strengths, wavelengths, HOMO and LUMO energies, are performed by time-dependent density functional theory (TD-DFT). Total and partial density of state and overlap population density of state diagrams analysis are presented for E-6-ClN molecule. Furthermore, frontier molecular orbitals (FMO), molecular electrostatic potential, and thermodynamic features are performed. In addition to these, reduced density gradient of the molecule is performed and discussed. As a conclusion, the calculated results are compared with the experimental spectra of the title compound. The results of the calculations are applied to simulate the vibrational spectra of the molecule, which show excellent agreement with the observed ones. The theoretical and tentative results will give us a detailed description of the structural and physicochemical properties of the molecule. Natural bond orbital analysis is done to have more information stability of the molecule arising from charge delocalization, and to reveal the information regarding charge transfer within the molecules.
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Affiliation(s)
- Mehmet Karabacak
- Department of Mechatronics Engineering, H.F.T. Technology Faculty, Celal Bayar University, Turgutlu, Manisa, Turkey
| | - Zuhre Calisir
- Department of Physics, Ahi Evran University, Kırsehir, Turkey
| | - Mustafa Kurt
- Department of Physics, Ahi Evran University, Kırsehir, Turkey
| | - Etem Kose
- Department of Physics, Celal Bayar University, Manisa, Turkey
| | - Ahmet Atac
- Department of Physics, Celal Bayar University, Manisa, Turkey
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12
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Panicker CY, Varghese HT, Nayak PS, Narayana B, Sarojini BK, Fun HK, War JA, Srivastava SK, Van Alsenoy C. Infrared spectrum, NBO, HOMO-LUMO, MEP and molecular docking studies (2E)-3-(3-nitrophenyl)-1-[4-piperidin-1-yl]prop-2-en-1-one. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 148:18-28. [PMID: 25863456 DOI: 10.1016/j.saa.2015.03.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/25/2015] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
FT-IR spectrum of (2E)-3-(3-nitrophenyl)-1-[4-piperidin-1-yl]prop-2-en-1-one was recorded and analyzed. The vibrational wavenumbers were computed using HF and DFT quantum chemical calculations. The data obtained from wavenumber calculations are used to assign IR bands. Potential energy distribution was done using GAR2PED software. The geometrical parameters of the title compound are in agreement with the XRD results. NBO analysis, HOMO-LUMO, first and second hyperpolarizability and molecular electrostatic potential results are also reported. The possible electrophile attacking sites of the title molecule is identified using MEP surface plot study. Molecular docking results predicted the anti-leishmanic activity for the compound.
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Affiliation(s)
- C Yohannan Panicker
- Department of Physics, TKM College of Arts and Science, Kollam, Kerala, India.
| | | | - Prakash S Nayak
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karanataka, India
| | - B Narayana
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karanataka, India
| | - B K Sarojini
- Industrial Chemistry-Division, Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karanataka, India
| | - H K Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800 Malaysia; Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Javeed Ahamad War
- Department of Chemistry, Dr.H.S.Gour Central University, Sagar, M.P., India
| | - S K Srivastava
- Department of Chemistry, Dr.H.S.Gour Central University, Sagar, M.P., India
| | - C Van Alsenoy
- University of Antwerp, Chemistry Department, Universiteitsplein 1, B2610 Antwerp, Belgium
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13
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Panicker CY, Varghese HT, Narayana B, Divya K, Sarojini BK, War JA, Van Alsenoy C, Fun HK. FT-IR, NBO, HOMO-LUMO, MEP analysis and molecular docking study of Methyl N-({[2-(2-methoxyacetamido)-4-(phenylsulfanyl)phenyl]amino}[(methoxycarbonyl) imino]methyl)carbamate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 148:29-42. [PMID: 25863457 DOI: 10.1016/j.saa.2015.03.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/25/2015] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
The optimized molecular structure, vibrational frequencies, corresponding vibrational assignments of Methyl N-({[2-(2-methoxyacetamido)-4-(phenylsulfanyl) phenyl]amino} [(methoxycarbonyl)imino]methyl)carbamate have been investigated using HF and DFT levels of calculations. The geometrical parameters are in agreement with XRD data. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. The HOMO and LUMO analysis is used to determine the charge transfer within the molecule. Molecular electrostatic potential study was also performed. The first and second hyperpolarizability was calculated in order to find its role in nonlinear optics. Molecular docking studies are also reported. Prediction of Activity Spectra analysis of the title compound predicts anthelmintic and antiparasitic activity as the most probable activity with Pa (probability to be active) value of 0.808 and 0.797, respectively. Molecular docking studies show that both the phenyl groups and the carbonyl oxygens of the molecule are crucial for bonding and these results draw us to the conclusion that the compound might exhibit pteridine reductase inhibitory activity.
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Affiliation(s)
- C Yohannan Panicker
- Department of Physics, TKM College of Arts and Science, Kollam, Kerala, India.
| | | | - B Narayana
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karnataka, India
| | - K Divya
- Department of Studies in Chemistry, Mangalore University, Mangalagangotri, Karnataka, India
| | - B K Sarojini
- Industrial Chemistry Division, Department of Studies in Chemistry, Mangalore University, Manglagangotri, Karnataka, India
| | - Javeed Ahmad War
- Department of Chemistry, Dr.H.S.Gour Central University, Sagar, M.P., India
| | - C Van Alsenoy
- University of Antwerp, Chemistry Department, Universiteitsplein 1, B2610 Antwerp, Belgium
| | - H K Fun
- X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, Penang 11800, Malaysia; Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia
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14
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Němečková D, Mary YS, Panicker CY, Varghese HT, Van Alsenoy C, Procházková M, Pazdera P, Al-Saadi AA. 1-Alkyl-1-methylpiperazine-1,4-diium salts: Synthetic, acid–base, XRD-analytical, FT-IR, FT-Raman spectral and quantum chemical study. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.03.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Ramya T, Gunasekaran S, Ramkumaar GR. Molecular structure, spectroscopic characterization of (S)-2-Oxopyrrolidin-1-yl Butanamide and ab initio, DFT based quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:132-142. [PMID: 25956325 DOI: 10.1016/j.saa.2015.04.033] [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: 11/10/2014] [Revised: 03/31/2015] [Accepted: 04/16/2015] [Indexed: 06/04/2023]
Abstract
The experimental and theoretical spectra of (S)-2-Oxopyrrolidin-1-yl Butanamide (S2OPB) were studied. FT-IR and FT-Raman spectra of S2OPB in the solid phase were recorded and analyzed in the range 4000-450 and 5000-50 cm(-1) respectively. The structural and spectroscopic analyses of S2OPB were calculated using ab initio Hartree Fock (HF) and density functional theory calculations (B3PW91, B3LYP) with 6-31G(d,p) basis set. A complete vibrational interpretation has been made on the basis of the calculated Potential Energy Distribution (PED). The HF, B3LYP and B3PW91 methods based NMR calculation has been used to assign the (1)H NMR and (13)C NMR chemical shift of S2OPB. Comparative study on UV-Vis spectral analysis between the experimental and theoretical (B3PW91, B3LYP) methods and the global chemical parameters and local descriptor of reactivity through the Fukui function were performed. Finally the thermodynamic properties of S2OPB were calculated at different temperatures and the corresponding relations between the properties and temperature were also studied.
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Affiliation(s)
- T Ramya
- Department of Physics, C.T.T.E. College for Women, Perambur, Chennai 600011, TN, India; PG and Research Department of Physics, Pachaiyappa's College, Chennai 600030, 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
| | - G R Ramkumaar
- Department of Physics, C. Kandaswami Naidu College for Men, Anna Nagar East, Chennai 600102, TN, India.
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16
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Mathammal R, Sudha N, Guru Prasad L, Ganga N, Krishnakumar V. Spectroscopic (FTIR, FT-Raman, UV and NMR) investigation and NLO, HOMO-LUMO, NBO analysis of 2-Benzylpyridine based on quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:740-748. [PMID: 25262142 DOI: 10.1016/j.saa.2014.08.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 07/30/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
In this work, the vibrational characteristics of 2-Benzylpyridine have been investigated. The structure of the molecule has been optimized and the structural characteristics of the molecule have been determined by density functional theory B3LYP method with 6-31G(d,p) basis set. The infrared and Raman spectra have been simulated from calculated intensities. Both the experimental and theoretical vibrational data confirms the presence of functional groups in the title compound. The (1)H and (13)C NMR spectra were recorded and (1)H and (13)C nuclear magnetic resonance chemical shifts of the molecule were calculated using the gauge independent atomic orbital method. UV-Visible spectrum of the title compound was recorded in the region 190-1100 nm and the electronic properties HOMO and LUMO energies were calculated by CIS approach. Nonlinear optical and thermodynamic properties were interpreted. All the calculated results were compared with the available experimental data of the title molecule.
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Affiliation(s)
- R Mathammal
- Department of Physics, Sri Sarada College for Women (Autonomous), Salem, Tamil Nadu, India.
| | - N Sudha
- Department of Physics, Sri Sarada College for Women (Autonomous), Salem, Tamil Nadu, India
| | - L Guru Prasad
- Department of Physics, M.Kumarasamy College of Engineering, Karur, Tamil Nadu, India
| | - N Ganga
- Department of Physics, Sri Sarada College for Women (Autonomous), Salem, Tamil Nadu, India
| | - V Krishnakumar
- Department of Physics, Periyar University, Salem, Tamil Nadu, India
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17
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Shailajha S, Rajesh Kannan U, Sheik Abdul Kadhar SP, Isac Paulraj E. Molecular structure, vibrational spectra and (13)C and (1)H NMR spectral analysis of 1-methylnaphthalene by ab initio HF and DFT methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:720-729. [PMID: 24996214 DOI: 10.1016/j.saa.2014.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/20/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
The Fourier transform infrared (FT-IR) and FT-Raman of 1-methylnaphthalene (1MN) have been recorded and analyzed. The equilibrium geometry, bond lengths, bond angles and harmonic vibrational frequencies have been investigated with the help of density functional theory (DFT) method. Vibrational spectroscopic assignments of 1-methylnaphthalene (1MN) are carried out with the help of quantum chemical calculation. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule are calculated by the Gauge including atomic orbital (GIAO) method. The molecular stability and bond strength have been investigated by using natural bond orbital analysis (NBO). The assignments of vibrational spectra have been carried out with the help of normal co-ordinate analysis (NCA) following the scaled quantum mechanical force field (SQMFF) methodology. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shift of the molecular is depend only on the structure of the molecule. The calculated HOMO and LUMO energy shows that charge transfer interactions take place within the molecule. Finally, the calculation results are applied to simulate infrared and Raman spectra of the title compound which show good agreement with observed spectra.
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Affiliation(s)
- S Shailajha
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, Tamil Nadu, India.
| | - U Rajesh Kannan
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, Tamil Nadu, India
| | - S P Sheik Abdul Kadhar
- Department of Physics, Manonmaniam Sundaranar University, Tirunelveli 627012, Tamil Nadu, India
| | - E Isac Paulraj
- Department of Physics, Pallavan College of Engineering, Kancheepuram 631502, Tamil Nadu, India
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18
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Abbas A, Gökce H, Bahçeli S, Naseer MM. Spectroscopic (FT-IR, Raman, NMR and UV–vis.) and quantum chemical investigations of (E)-3-[4-(pentyloxy)phenyl]-1-phenylprop-2-en-1-one. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Kumar A, Deval V, Tandon P, Gupta A, Deepak D'silva E. Experimental and theoretical (FT-IR, FT-Raman, UV-vis, NMR) spectroscopic analysis and first order hyperpolarizability studies of non-linear optical material: (2E)-3-[4-(methylsulfanyl) phenyl]-1-(4-nitrophenyl) prop-2-en-1-one using density functional theory. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:41-53. [PMID: 24762572 DOI: 10.1016/j.saa.2014.03.072] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 03/01/2014] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
A combined experimental and theoretical investigation on FT-IR, FT-Raman, NMR, UV-vis spectra of a chalcone derivative (2E)-3-[4-(methylsulfanyl) phenyl]-1-(4-nitrophenyl) prop-2-en-1-one (4N4MSP) has been reported. 4N4MSP has two planar rings connected through conjugated double bond and it provides a necessary configuration to show non-linear optical (NLO) response. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational bands are interpreted with the aid of structure optimizations and normal coordinate force field calculations based on density functional theory (DFT) with B3LYP functional and 6-311++G(d,p) basis set combination. The analysis of the fundamental modes was made with the help of potential energy distribution (PED). Molecular electrostatic potential (MEP) surface was plotted over the geometry primarily for predicting sites and relative reactivities towards electrophilic and nucleophilic attack. The delocalization of electron density of various constituents of the molecule has been discussed with the aid of NBO analysis. The electronic properties, such as excitation energies, oscillator strength, wavelengths, HOMO and LUMO energies, were calculated by time-dependent density functional theory (TD-DFT) and the results complement the experimental findings. The recorded and calculated 1H chemical shifts in gas phase and MeOD solution are gathered for reliable calculations of magnetic properties. Thermodynamic properties like heat capacity (C°p,m), entropy (S°m), enthalpy (H°m) have been calculated for the molecule at the different temperatures. Based on the finite-field approach, the non-linear optical (NLO) parameters such as dipole moment, mean polarizability, anisotropy of polarizability and first order hyperpolarizability of 4N4MSP molecule are calculated. The predicted first hyperpolarizability shows that the molecule has a reasonably good nonlinear optical (NLO) behavior.
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Affiliation(s)
- Amit Kumar
- Department of Physics, University of Lucknow, Lucknow, India; Department of Applied Physics, Faculty of Engineering and Technology, M.J.P. Rohilkhand University, Bareilly, India
| | - Vipin Deval
- Department of Applied Physics, Faculty of Engineering and Technology, M.J.P. Rohilkhand University, Bareilly, India
| | - Poonam Tandon
- Department of Physics, University of Lucknow, Lucknow, India
| | - Archana Gupta
- Department of Applied Physics, Faculty of Engineering and Technology, M.J.P. Rohilkhand University, Bareilly, India.
| | - E Deepak D'silva
- Department of Physics, Center for Post Graduate Studies and Research, St. Philomena College, Puttur, India
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Sheikhshoaie I, Ebrahimipour SY, Sheikhshoaie M, Rudbari HA, Khaleghi M, Bruno G. Combined experimental and theoretical studies on the X-ray crystal structure, FT-IR, 1H NMR, 13C NMR, UV-Vis spectra, NLO behavior and antimicrobial activity of 2-hydroxyacetophenone benzoylhydrazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:548-555. [PMID: 24508893 DOI: 10.1016/j.saa.2014.01.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Revised: 12/25/2013] [Accepted: 01/08/2014] [Indexed: 06/03/2023]
Abstract
A Schiff base ligand, 2-hydroxyacetophenone benzoylhydrazone (HL) was synthesized and fully characterized with FT-IR, elemental analyses, UV-Vis, (1)H NMR and (13)C NMR spectra. DFT calculations using B3LYP/6-31+G(d,p) and PW91/DZP are performed to optimize the molecular geometry. Optimized structures are used to calculate FT-IR, UV-Vis, (1)H NMR and (13)C NMR spectra of the compound. Also the energies of the frontier molecular orbitals (FMOs) have been determined. The results obtained from the optimization and spectral analyses are in good agreement with the experimental data. To investigate non-linear optical properties, the electric dipole moment (μ), polarizability (α) and molecular first hyperpolarizability (β) were computed. The linear polarizabilities and first hyperpolarizabilities of the studied molecule indicate that the compound can be a good candidate of nonlinear optical materials. In addition, the minimal inhibitory concentration (MIC) of this compound against Staphylococcus aureus, and Candida albicans was determined.
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Affiliation(s)
- Iran Sheikhshoaie
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169-14111, Iran.
| | - S Yousef Ebrahimipour
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman 76169-14111, Iran.
| | - Mahdeyeh Sheikhshoaie
- Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman 76169-14111, Iran
| | - Hadi Amiri Rudbari
- Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran; Dipartimento di Scienze Chimiche, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Moj Khaleghi
- Department of Biology, Shahid Bahonar University of Kerman, Kerman 76169-14111, Iran
| | - Giuseppe Bruno
- Dipartimento di Scienze Chimiche, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
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Delgadillo-Armendariz NL, Rangel-Vázquez NA, García-Castañón AI. Spectroscopy analysis of chitosan-glibenclamide hydrogels. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:524-528. [PMID: 24216118 DOI: 10.1016/j.saa.2013.09.112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 09/09/2013] [Accepted: 09/26/2013] [Indexed: 06/02/2023]
Abstract
The structure of glibenclamide, 5-chloro-N-(2-{4-[(cyclohexylamino)carbonyl] aminosulfonyl}phenyl) ethyl)-2-methoxybenzamide, an important antidiabetic drug, has been studied both chitosan using theoretical calculations like Gibbs free energy, electrostatic potential, FTIR and NMR spectroscopy. Fourier transform infrared (FT-IR) spectroscopy reveals information about the molecular interactions of chemical components and is useful to characterization of hydrogel. Nucleophilic and electrophilic regions were calculated using the electrostatic potential.
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Affiliation(s)
| | - Norma-Aurea Rangel-Vázquez
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Aguascalientes, Aguascalientes, Mexico.
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