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Holikulov U, Kazachenko AS, Issaoui N, Kazachenko AS, Raja M, Al-Dossary OM, Xiang Z. The molecular structure, vibrational spectra, solvation effect, non-covalent interactions investigations of psilocin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124600. [PMID: 38852303 DOI: 10.1016/j.saa.2024.124600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/27/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Psilocin, or 4-HO-DMT (or 3-(2-dimethylaminoethyl)-1H-indol-4-ol), is a psychoactive alkaloid substance from the tryptamine family, isolated from Psilocybe mushrooms. This substance is being studied by various research groups because it has a clear therapeutic effect in certain dosages. In this work, the study of the structure and properties of psilocin was carried using theoretical methods: the effects of polar solvents (acetonitrile, dimethylsulfoxide, water, and tetrahydrofuran) on the structural parameters, spectroscopic properties (Raman, IR, and UV-Vis), frontier molecular orbital (FMO), molecular electrostatic potential (MEP) surface, and nonlinear optical parameters (NLO). Theoretical calculations were performed at the B3LYP/6-311++G(d,p) level by the density functional theory (DFT) method. IEFPCM was used to account for solvent effects. The types and nature of non-covalent interactions (NCI) between psilocin and solvent molecules were determined using Atoms in Molecules (AIM), the reduced density gradient method (RDG), the electron localization function (ELF), and the localization orbital locator (LOL). Experimental and calculated FT-IR, FT-Raman, and UV-Vis spectra were compared and found to be in good agreement.
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Affiliation(s)
- Utkirjon Holikulov
- Department of Optics and Spectroscopy, Samarkand State University, 15 University Blvd., 140104 Samarkand, Uzbekistan
| | - Aleksandr S Kazachenko
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center, Krasnoyarsk Science Center SB RAS, Akademgorodok, 50/24, Krasnoyarsk 660036, Russia; Siberian Federal University, pr. Svobodny 79, Krasnoyarsk 660041 Russia.
| | - Noureddine Issaoui
- Laboratory of Quantum and Statistical Physics, University Monastir, Monastir 5079, Tunisia
| | - Anna S Kazachenko
- Siberian Federal University, pr. Svobodny 79, Krasnoyarsk 660041 Russia
| | - Murugesan Raja
- Department of Physics, Govt. Thirumagal Mills College, Gudiyatham, Vellore 632602, India
| | - Omar M Al-Dossary
- Department of Physics and Astronomy, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Zhouyang Xiang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640 China
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Sumithra M, Sundaraganesan N, Rajesh R, Ilangovan V, Irfan A, Muthu S. Electron density, charge transfer, solvent effect and molecular spectroscopic studies on 2,2-Dimethyl-N-pyridin-4-yl-propionamide – A potential antioxidant. COMPUT THEOR CHEM 2023. [DOI: 10.1016/j.comptc.2023.114103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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3
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Smitha Rose C, Suthan T, Mary Delphine S, Wise Bell CC, Lekshmi NP. Studies on crystal growth, experimental, structural, DFT, optical, thermal and biological studies of 3-hydroxy-4-methoxybenzaldehyde single crystals. Heliyon 2023; 9:e15219. [PMID: 37095901 PMCID: PMC10122042 DOI: 10.1016/j.heliyon.2023.e15219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/26/2023] Open
Abstract
The organic 3-hydroxy-4-methoxybenzaldehyde single crystal has been grown by the slow evaporation technique. Single crystal X-ray diffraction (XRD) study shows that the grown crystal belongs to a monoclinic crystal system with centrosymmetric space group P21/c. The spectral analysis of 3-hydroxy-4-methoxybenzaldehyde calculations was performed with the help of DFT at the B3LYP/6-311 + G(d,p) level of theory. The experimental results of FTIR and FT-Raman were compared with the computational results. Detailed interpretations of the vibrational spectra were carried out with the aid of vibrational energy distribution analysis using potential energy distribution (PED) analysis and vibrational wavenumber scaled by the WLS (Wavenumber Linear Scaling) method. The natural bond orbital (NBO) analysis was carried out to identify intramolecular hydrogen bonding. The optical properties of the grown crystal were analyzed by UV-Visible studies. Photoluminescence studies show that the high-intensity peak observed around 410 nm. The laser damage threshold value of the grown crystal has been determined using an Nd:YAG laser operating at 1064 nm. The HOMO (Highest Occupied Molecular Orbital) - LUMO (Lowest Unoccupied Molecular Orbital) was used to identify the energy gap. Hirshfeld Surface (HS) analysis was used to determine the intermolecular interactions. The thermal properties of the grown crystal were performed by Thermogravimetric (TG) and Differential thermal analyses (DTA). The kinetic and thermodynamic parameters were calculated. The surface morphology of the grown crystal was studied by using Scanning Electron Microscopy (SEM) analysis. The antibacterial and antifungal studies were analyzed.
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Affiliation(s)
- C. Smitha Rose
- Department of Physics & Research Centre, Holy Cross College, Nagercoil, 629002, India
- Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627012, India
| | - T. Suthan
- Department of Physics, Lekshmipuram College of Arts and Science, Neyyoor, 629802, India
- Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627012, India
- Corresponding author. Department of Physics, Lekshmipuram College of Arts and Science, Neyyoor, 629802, India.
| | - S. Mary Delphine
- Department of Physics & Research Centre, Holy Cross College, Nagercoil, 629002, India
- Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627012, India
| | - C. Cynitha Wise Bell
- Department of Physics, Loyola Institute of Technology and Science, Thovalai, 629302, India
| | - N.C.J. Packia Lekshmi
- Department of Allied Health Sciences, Noorul Islam Centre for Higher Education, Kumaracoil, 629180, India
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Cholayil Palapetta S, Gurusamy H, Ganapasam S. Synthesis, Characterization, Computational Studies, Molecular Docking, and In Vitro Anticancer Activity of Dihydropyrano[3,2- c]chromene and 2-Aminobenzochromene Derivatives. ACS OMEGA 2023; 8:7415-7429. [PMID: 36873031 PMCID: PMC9979373 DOI: 10.1021/acsomega.2c06049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
2-Aminobenzochromenes and dihydropyranochromenes represent a unique class of biologically active compounds. Recent organic syntheses focus on the development of environmentally benign synthetic protocols, and as a part of this concept, we have taken a considerable interest in the synthesis of this class of biologically active compounds using an environment-friendly, reusable heterogeneous Amberlite IRA 400-Cl resin catalyst. This work further aims to highlight the importance and advantages of these compounds and to compare the experimental data obtained with those of the theoretical calculations made using the density functional theory (DFT) method. Molecular docking studies on the selected compounds were also carried out to study the effectiveness of these compounds in liver fibrosis treatment. Furthermore, we have performed molecular docking studies and an in vitro study of the anticancer activity of dihydropyrano[3,2-c]chromenes and 2-aminobenzochromenes against human colon cancer cells [HT29].
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Affiliation(s)
- Surya Cholayil Palapetta
- Department
of Polymer Science, University of Madras, Guindy Campus, Chennai 600 025, India
- Department
of Chemistry, Jerusalem College of Engineering,
Narayanapuram, Chennai 600 100, India
| | - Harichandran Gurusamy
- Department
of Polymer Science, University of Madras, Guindy Campus, Chennai 600 025, India
| | - Sudhandiran Ganapasam
- Department
of Biochemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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Synthesis, crystal growth, structural and physicochemical properties of N- methylurea Benzoic acid single crystal for non-linear optical applications. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Kanagavalli A, Jayachitra R, Thilagavathi G, Elangovan N, Sowrirajan S, Thomas R. Synthesis, characterization, computational, excited state properties, wave function, and molecular docking studies of (E)-4-((2-hydroxybenzylidene)amino)N-(thiazol-2-yl) benzenesulfonamide. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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7
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Jayachitra R, Thilagavathi G, Kanagavalli A, Elangovan N, Sowrirajan S, Thomas R. Photophysical properties of (E)-4-((1-phenylethylidene)amino)-N-(pyrimidin-2-yl) benzenesulfonamide; synthesis, characterization, wavefunction and docking studies. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Kaur P, Verma I, Shashikant, Khanum G, Siddiqui N, Javed S, Arora H. Dimeric ZnII complex of carboxylate-appended (2-pyridyl)alkylamine ligand and Exploration of experimental, theoretical, molecular docking and electronic excitation studies of ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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9
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Computational examination on monomeric, dimeric, trimeric structural and vibrational interactions, AIM, Hirshfeld, IGM and oxygenated solvent effect on optical properties for pyridine N-oxide. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Sharma A, Khanum G, Kumar A, Fatima A, Singh M, Abualnaja KM, Althubeiti K, Muthu S, Siddiqui N, Javed S. Conformational stability, quantum computational, spectroscopic, molecular docking and molecular dynamic simulation study of 2-hydroxy-1-naphthaldehyde. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132755] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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11
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Madadi Mahani N, Mostaghni F, Shafiekhani H. Cuspareine as alkaloid against COVID-19 designed with ionic liquids: DFT and docking molecular approaches. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 231:112447. [PMID: 35483276 PMCID: PMC9020645 DOI: 10.1016/j.jphotobiol.2022.112447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
Cuspareine as an antiviral alkaloid can be used in the treatment of COVID-19. In this study, we introduced the ionic liquids (ILs) concluded cuspareinium as a cation with CH3COO-, CF3COO-, and PF6 as anions. The optimized geometry, thermodynamic parameters, and reactivity descriptors were calculated with density functional theory (DFT) approach and time-dependent density functional theory (TD-DFT) using B3LYP/6-311G. In addition, the UV and IR spectra of the introduced ILs were investigated. Based on DFT calculation, the designed IL CH3COO- can be to the most suitable anions due to most solubility in the water. DFT studies displayed that all the introduced ILs have more polarity than pristine cuspareine and CH3COO--cuspareine is the most polarity due to high dipole moment. Also, the thermo- chemical data of the designed ionic liquids revealed that PF6-cuspareine is distinguished to be stable. A molecular docking study of the designed ILs with 6 LU7 protease was performed to display interactions and binding energy. Results of molecular docking displayed that CH3COO- ion liquid has the highest binding energy (- 7.20 kcal/mol) and Ala7, and Lys 5 residues are involved in an interaction. DFT and molecular docking studies of cuspareine as alkaloid based on ionic liquids can be helpful to for more pharmaceutical and biological researches of cuspareine as an antiviral agent against COVID-19.
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Affiliation(s)
| | - Fatemeh Mostaghni
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Iran
| | - Homa Shafiekhani
- Department of Chemistry, Payame Noor University, 19395-4697 Tehran, Iran
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12
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Radder SB, Melavanki R, Radder U, Hiremath SM, Kusanur R, Khemalapure SS. Synthesis, spectroscopic (FT-IR, FT-Raman, NMR), reactivity (ELF, LOL and Fukui) and docking studies on 3-(2‑hydroxy-3‑methoxy-phenyl)-1-(3-nitro-phenyl)-propenone by experimental and DFT methods. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Structure and absolute configuration of parodiolide, a new dimeric sesquiterpene lactone isolated from Mikania parodii Cabrera possessing an uncommon spiro connexion. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Jabarov SH, Ibrahimova SI, Hajiyeva FV, Huseynov EM, Aliyev YI. Structural, Vibrational, and Dielectric Properties of CuInZnSe3 Chalcogenide Compound. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-06745-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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15
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Tahenti M, Issaoui N, Roisnel T, Marouani H, Al-Dossary O, Kazachenko AS. Self-assembly of a new cobalt complex, (C6H14N2)3[CoCl4]Cl: Synthesis, empirical and DFT calculations. JOURNAL OF KING SAUD UNIVERSITY - SCIENCE 2022. [DOI: 10.1016/j.jksus.2021.101807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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16
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Chen Q, Cui L, Guan Y, Zhang Y. Diels-Alder Cross-Linked, Washing-Free Hydrogel Films with Ordered Wrinkling Patterns for Multicellular Spheroid Generation. Biomacromolecules 2021; 22:3474-3485. [PMID: 34291920 DOI: 10.1021/acs.biomac.1c00570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Three-dimensional (3D) multicellular spheroids are a new generation in vitro cell model, however, their applications are severely limited by difficulties in their generation. Here patterned poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogel films were synthesized for their generation. Instead of polymerization of HEMA monomers in the presence of a cross-linker, here the PHEMA films were synthesized by cross-linking furan-functionalized linear PHEMA, PHEMA-furan, and maleimide-functionalized linear PHEMA, PHEMA-mal, via Diels-Alder (DA) reaction between furan and maleimide groups. A thermal treatment temperature of 75 °C was chosen for the cross-linking reaction. The occurrence of DA reaction was confirmed by IR spectra. Using this method, cross-linked PHEMA films with smooth surface were successfully synthesized in situ in the well of cell culture plates. The films were then patterned by simply adding water to swell them. Highly ordered, honeycomb-like wrinkling patterns were successfully obtained by adjusting the furan and maleimide contents in the precursor linear polymers. The patterned hydrogel films were used to generate multicellular spheroids. Guided by the patterns, 3D spheroids with narrow size distribution, tunable size, and high cell viability were successfully obtained. The patterned PHEMA films reported here exhibited a lot of advantages. The patterning method was quite simple and required no template or special equipment. They were synthesized in situ in commercial cell culture plates. Particularly, thanks to the clean nature of the DA reaction, no low molecular weight monomer, cross-linker, initiator, or catalyst, which were potentially cytotoxic, was involved in the film synthesis, and no byproduct was produced and left in the film. The resulting films presented a high biocompatibility, allowing the avoidance of the tedious washing step. The films synthesized here were expected to have high potential for massive production of well-defined multicellular spheroids.
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Affiliation(s)
- Qianbing Chen
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lei Cui
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ying Guan
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yongjun Zhang
- Key Laboratory of Functional Polymer Materials and State Key Laboratory of Medicinal Chemical Biology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.,School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
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Abstract
Chromenes and their derivatives have been considered as an important class of oxygen-containing heterocycles. There has been an increasing interest in the study of chromenes due to their biological activity. Herein, the structural, electronic, and vibrational properties of a chromene derivative, entitled 2‐amino‐5‐oxo‐4‐phenyl‐4,5‐dihydropyrano[3,2‐c]chromene‐3‐carbonitrile and abbreviated as Chrom-D, have been reported. The FT-IR, UV-vis, and 1H-NMR and 13C-NMR chemical shifts’ measurements were recorded. The molecular geometry and the vibrational frequencies are computed in the frame of density functional theory at the B3LYP/6-311++G(d,p) level of theory. The noncovalent interactions in the crystal lattice which are responsible to the 3D crystal structure of Chrom-D are investigated based on Hirshfeld surfaces and topological reduced density gradient (RDG) analysis. Molecular electrostatic potential surface, Mulliken charges, and Fukui functions are computed in order to find out the electrophilic and nucleophilic sites. The electronic properties of the title compound have been studied based on the TD-DFT calculations. Finally, Chrom-D has been evaluated as a multifunctional agent against Alzheimer’s disease (AD).
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18
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Wang Z, Flores Q, Guo H, Trevizo R, Zhang X, Wang S. Crystal Engineering Construction of Caffeic Acid Derivatives with Potential Applications in Pharmaceuticals and Degradable Polymeric Materials. CrystEngComm 2020; 22:7847-7857. [PMID: 33343233 PMCID: PMC7744004 DOI: 10.1039/d0ce01403f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Natural products are precious feedstock in drug discovery and sustainable materials. This work using crystal engineering strategy, visible light, and solvent-free cycloaddition successfully constructed two caffeic acid derivatives, rel-(1R,2R,3S,4S)-2,4-bis(3,4-dihydroxyphenyl)cyclobutane-1,3-dicarboxylate and rel-(1R,2R,3S,4S)-2,4-bis(3,4-dihydroxyphenyl)cyclobutane-1,3-dicarboxylic acid. Because of the multiple stereocenters, it is challenging to prepare those compounds using traditional organic synthesis methods. The crystal engineering Hirshfeld surface analysis and 2D intermolecular interaction fingerprints were applied to synthetic route design. The light resources used in this work was visible LED or free, clean, and renewable sunlight. The evidence suggested that pure stereoisomer was obtained demonstrating the stereospecificity and efficiency of the topochemical cycloaddition reaction. The derivatives exhibited free radical scavenging and antioxidant biological activities, as well as the potential inhibitory activity of fatty acid binding proteins. One of the derivatives is the precursor of the natural product Shimobashiric acid C which paves the way for the total synthesis and further study of Shimobashiric acid C. In addition, the derivatives possess photodegradability at a specific wavelength, which is very attractive for "green" degradable polymeric materials.
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Affiliation(s)
- Zhihan Wang
- Department of Physical Sciences, Eastern New Mexico University, Portales, NM 88130, USA
| | - Quinton Flores
- Department of Physical Sciences, Eastern New Mexico University, Portales, NM 88130, USA
| | - Hongye Guo
- School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Raquel Trevizo
- Department of Physical Sciences, Eastern New Mexico University, Portales, NM 88130, USA
| | - Xiaochan Zhang
- Department of Physical Sciences, Eastern New Mexico University, Portales, NM 88130, USA
| | - Shihan Wang
- College of Chinese Herbal Medicine, Jilin Agricultural University, Changchun, Jilin 130118, China
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Arif R, Rana M, Yasmeen S, Amaduddin, Khan MS, Abid M, Khan M, Rahisuddin. Facile synthesis of chalcone derivatives as antibacterial agents: Synthesis, DNA binding, molecular docking, DFT and antioxidant studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127905] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Erdemir F, Celepci DB, Aktaş A, Gök Y. Synthesis, crystal structures, spectral investigations, conformational analysis and DFT studies of N- heterocyclic carbene precursors. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127519] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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21
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Molecular structure, optoelectronic properties, spectroscopic (FT-IR, FT-Raman and UV–Vis), H-BDE, NBO and drug likeness investigations on 7, 8-benzocoumarin-4-acetic acid (7BAA). J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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22
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Hiremath SM, Patil AS, Hiremath CS, Basangouda M, Khemalapure SS, Patil NR, Radder SB, Armaković SJ, Armaković S. Structural, spectroscopic characterization of 2-(5-methyl-1-benzofuran-3-yl) acetic acid in monomer, dimer and identification of specific reactive, drug likeness properties: Experimental and computational study. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Murugavel S, Sundramoorthy S, Subashini R, Pavan P. Synthesis, characterization, pharmacological, molecular modeling and antimicrobial activity evaluation of novel isomer quinoline derivatives. Struct Chem 2018. [DOI: 10.1007/s11224-018-1149-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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24
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Belyakov AV, Ivanov AD, Losev VA, Oskorbin AA, Pevzner LM, Khramov AN, Petrov ML. Molecular Structure of 5-Methyl-2-(trifluoromethyl)furan-3-carbonitrile According to Gas-Phase Electron Diffraction
and Quantum Chemistry. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418070075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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25
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Faizan M, Alam MJ, Afroz Z, Rodrigues VHN, Ahmad S. Growth, structure, Hirshfeld surface and spectroscopic properties of 2-amino-4-hydroxy-6-methylpyrimidinium-2,3-pyrazinedicorboxylate single crystal. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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26
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Bhat SA, Dar AA, Ahmad S, Khan AT. Structural, vibrational and NMR spectroscopic investigations of newly synthesized 3-((ethylthio)(4-nitrophenyl)methyl)-1H-indole. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Bhat SA, Ahmad S. Quantum chemical and spectroscopic investigations of 4-Hydroxy-7-methyl-1,8-naphthyridine-3-carboxylic acid. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1142/s0219633616500425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The FTIR (4000–400[Formula: see text]cm[Formula: see text]) and the FT-Raman spectra (4000–50[Formula: see text]cm[Formula: see text]) of 4-Hydroxy-7-methyl-1,8-naphthyridine-3-carboxylic acid are recorded and investigated. The spectra are interpreted using anharmonic frequency computations by VPT2, VSCF and PT2-VSCF methods within DFT/6-311G(d,p) framework. The root mean square (RMS) values indicate that VSCF computed frequencies are in close agreement with the observed frequencies. The combination and overtone bands are also identified in the FTIR spectrum. The intermolecular O-H[Formula: see text]O hydrogen bonding interactions are discussed in the dimer structure of the molecule. The magnitudes of the coupling between pair of modes are also computed. The electronic spectra in water and ethanol solvents are analyzed using TD-B3LYP/6-311[Formula: see text]G(d,p) level of theory. Molecular electrostatic potential (MEP) and HOMO-LUMO analysis are also performed.
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Affiliation(s)
- Sheeraz Ahmad Bhat
- Department of Physics, Aligarh Muslim University, Aligarh-U.P202002, India
| | - Shabbir Ahmad
- Department of Physics, Aligarh Muslim University, Aligarh-U.P202002, India
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Quantum chemical calculations and analysis of FTIR, FT–Raman and UV–Vis spectra of temozolomide molecule. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Arockia doss M, Savithiri S, Rajarajan G, Thanikachalam V, Saleem H. Synthesis, spectroscopic (FT-IR, FT-Raman, UV and NMR) and computational studies on 3t-pentyl-2r,6c-diphenylpiperidin-4-one semicarbazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 148:189-202. [PMID: 25879989 DOI: 10.1016/j.saa.2015.03.117] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 03/11/2015] [Accepted: 03/27/2015] [Indexed: 06/04/2023]
Abstract
The structural and spectroscopic studies of 3t-pentyl-2r,6c-diphenylpiperidin-4-one semicarbazone (PDPOSC) were made by adopting B3LYP/HF levels theory using 6-311++G(d,p) basis set. The FT-IR and Raman spectra were recorded in solid phase, the fundamental vibrations were assigned on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method and PQS program. DFT method indicates that B3LYP is superior to HF method for molecular vibrational analysis. UV-vis spectrum of the compound was recorded in different solvents in the region of 200-800 nm and the electronic properties such as excitation energies, oscillator strength, wavelengths, HOMO and LUMO energies were evaluated by time-dependent DFT (TD-DFT) approach. The polarizability and first order hyperpolarizability of the title molecule were calculated and interpreted. The hyperconjugative interaction energy (E((2))) and electron densities of donor (i) and acceptor (j) bonds were calculated using NBO analysis. In addition, MEP and atomic charges of carbon, nitrogen and oxygen were calculated using B3LYP/6-311++G(d,p) level theory. Moreover, thermodynamic properties of the title compound were calculated by B3LYP/HF, levels using 6-311++G(d,p) basis set. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by the gauge independent atomic orbital (GIAO) method and compared with experimental results.
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Affiliation(s)
- M Arockia doss
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, India
| | - S Savithiri
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, India
| | - G Rajarajan
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, India.
| | - V Thanikachalam
- Department of Chemistry, Annamalai University, Annamalainagar 608 002, India
| | - H Saleem
- Department of Physics, Annamalai University, Annamalainagar 608 002, India
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Tao Y, Han L, Han Y, Liu Z. A combined experimental and theoretical analysis on molecular structure and vibrational spectra of 2,4-dihydroxybenzoic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:1078-1085. [PMID: 25300039 DOI: 10.1016/j.saa.2014.08.151] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 07/24/2014] [Accepted: 08/31/2014] [Indexed: 06/04/2023]
Abstract
The FT-IR and FT-Raman spectra of 2,4-dihydroxybenzoic acid (2,4-DHBA) in the solid phase have been recorded in the regions 4000-400 cm(-1) and 3700-100 cm(-1), respectively. The total energies of sixteen stable conformers for 2,4-DHBA have been calculated by density functional theory (DFT) using the B3LYP method with 6-311++G (d, p) basis set, and the C1 conformer with the lowest energy was obtained, the geometrical parameters between X-ray experiment diffraction and DFT calculation show good consistency. Furthermore, the vibrational frequencies of 2,4-DHBA were computed, and the detailed analysis of vibrational spectra was made on the basis of the potential energy distribution (PED) by combining experimental with theoretical data. In addition, frontier molecular orbitals, atomic charge distribution and molecular electrostatic potential (MEP) were also given.
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Affiliation(s)
- Yaping Tao
- College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China
| | - Ligang Han
- College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China
| | - Yunxia Han
- College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China
| | - Zhaojun Liu
- College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, China.
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