1
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Üstün E, Şakar D, Çol Ayvaz M, Sönmez Çelebi M, Ertürk Ö. CO-Releasing, Antioxidant, Antibacterial, Zeta Potential, Theoretical, and Electrochemical Analysis of [Mn(CO)3(bpy)L]OTf Type Complexes. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115997] [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]
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2
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Synthesis, spectroscopic (13C/1H-NMR, FT-IR) investigations, quantum chemical modelling (FMO, MEP, NBO analysis), and antioxidant activity of the bis-benzimidazole molecule. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Türker D, Üstün E, Günal S, Yıldız H, D Düşünceli S, Özdemir İ. Cyanopropyl functionalized benzimidazolium salts and their silver N-heterocyclic carbene complexes: Synthesis, antimicrobial activity, and theoretical analysis. Arch Pharm (Weinheim) 2022; 355:e2200041. [PMID: 35352839 DOI: 10.1002/ardp.202200041] [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: 01/26/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 11/08/2022]
Abstract
The reaction of N-substituted benzimidazole with 4-bromobutyronitrile gives the corresponding benzimidazolium salts as N-heterocyclic carbene (NHC) precursors. Silver(I) carbene complexes are synthesized by the reaction of the corresponding benzimidazolium salts with Ag2 O in dichloromethane. These new NHC precursors and Ag-NHC complexes were characterized by spectroscopy techniques and also screened for their antibacterial activities against the standard bacterial strains Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumoniae, Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Enterococcus faecalis, and the standard fungal strains Candida albicans and Candida glabrata, and promising results were achieved. The compounds were also analyzed by density functional theory (DFT)/time-dependent DFT and docking methods.
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Affiliation(s)
- Dilek Türker
- Inorganic Chemistry, Catalysis Research and Application Center, İnönü University, Malatya, Turkey
| | - Elvan Üstün
- Inorganic Chemistry, Department of Chemistry, Faculty of Science and Art, Ordu University, Ordu, Turkey
| | - Selami Günal
- Pharmaceutical Chemistry, Department of Microbiology, Faculty of Medicine, İnonu University, Malatya, Turkey
| | - Hatice Yıldız
- Pharmaceutical Chemistry, Department of Microbiology, Faculty of Medicine, İnonu University, Malatya, Turkey
| | - Serpil D Düşünceli
- Inorganic Chemistry, Catalysis Research and Application Center, İnönü University, Malatya, Turkey.,Inorganic Chemistry, Department of Chemistry, Faculty of Science and Arts, İnönü University, Malatya, Turkey.,Drug Application and Research Center, İnönü University, Malatya, Turkey
| | - İsmail Özdemir
- Inorganic Chemistry, Catalysis Research and Application Center, İnönü University, Malatya, Turkey.,Inorganic Chemistry, Department of Chemistry, Faculty of Science and Arts, İnönü University, Malatya, Turkey.,Drug Application and Research Center, İnönü University, Malatya, Turkey
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4
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A simple theoretical approach to converging of Myoglobin-Assay with different pH values. ACTA CHIMICA SLOVACA 2021. [DOI: 10.2478/acs-2021-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Many metal carbonyl complexes have been synthesized and analyzed as CO-releasing agents. As in many bioactivity assays, differences between in-vitro and in-vivo studies in Myoglobin Assay have been observed. Adjustment of in-vitro conditions to in-vivo conditions is one way to overcoming this problem. Changing the conditions of each in-vivo assay is not possible considering the available grant, material, and labor facilities. In-silico methods are suitable as they provide better in-vitro conditions before experimental procedures. A method which is easy to employ on a basic computer could be more suitable to observe the assay convergence. In this study, global reactivity descriptors were used as an approach to investigate pH differences in myoglobin assay. Global reactivity descriptors of the molecules were compared with myoglobin assay results at different pH values and molecular docking results performed with optimized molecules in different solvents. The following complexes were studied: [Mn(CO)3(bpy)(L)]PF6 (bpy: 2,2-bipyridyl, L: benzylbenzimidazole, 4-chlorobenzylbenzimidazole).
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Üstün E, Düşünceli SD, Coşkun F, Özdemir İ. Molybdenum Carbonyl Complexes with Benzimidazole Derivatives Against SARS-CoV-2 by Molecular Docking and DFT/TDDFT Methods. JOURNAL OF COMPUTATIONAL BIOPHYSICS AND CHEMISTRY 2021. [DOI: 10.1142/s2737416521500502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Benzimidazole derivative molecules attract attention of scientists due to their bioactivities. The dramatic changes in recorded activities according to the type and position of the substituents motivate synthesis and analysis of new molecules. Commercial benzimidazole-based molecules have been used in therapeutic procedures. It is known that the activities of metal complexes with benzimidazole derivative ligands have different activities when compared to the benzimidazole main structure. Nowadays, one of the most important health problems is COVID-19, which caused the pandemic that we are still experiencing. Although vaccine studies are important to overcome acute problems, regarding the possible post-vaccination adverse effects, the need for new drugs against the virus is obvious. Considering the urgency and the limited facilities during the pandemic, preliminary in silico studies of candidate molecules are essential. In this study, {[bis-(N-benzylbenzimidazole)] tetracarbonylmolybdenum}, {[bis-(N-4-chlorobenzylbenzimidazole)] tetracarbonylmolybdenum} and {[bis-(N-4-methoxybenzylbenzimidazole)] tetracarbonylmolybdenum} were synthesized and characterized. The optimization and the structural analysis of these molecules were performed by DFT/TDDFT methods. The molecules were docked into SARS coronavirus main peptidase (PDB ID: 2gtb), COVID-19 main protease in complex with Z219104216 (PDB ID: 5r82), COVID-19 main protease in complex with an inhibitor N3 (PDB ID: 6lu7) and Papain-like protease of SARS-CoV-2 (PDB ID: 6w9c) crystal structures for evaluation of their anti-viral activity.
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Affiliation(s)
- Elvan Üstün
- Department of Chemistry, Faculty of Art and Science, Ordu University, 52200 Ordu, Turkey
| | - Serpil Demir Düşünceli
- Department of Chemistry Faculty of Art and Science, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280 Malatya, Turkey
| | - Feyzullah Coşkun
- Department of Chemistry Faculty of Art and Science, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280 Malatya, Turkey
| | - İsmail Özdemir
- Department of Chemistry Faculty of Art and Science, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280 Malatya, Turkey
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6
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Üstün E, Şahin N, Çelik C, Tutar U, Özdemir N, Gürbüz N, Özdemir İ. Synthesis, characterization, antimicrobial and antibiofilm activity, and molecular docking analysis of NHC precursors and their Ag-NHC complexes. Dalton Trans 2021; 50:15400-15412. [PMID: 34647935 DOI: 10.1039/d1dt02003j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Microorganisms attach to surfaces and interfaces and form biofilms which create a sheltered area for host cell response. Therefore, biofilms provide troubles in fields such as medicine, food, and pharmaceuticals. Inhibition of formation of biofilms through hindering of quorum sensing could be a method for the production of new generation antibiotics. In this study, four new benzimidazole type NHC precursors (1-allyl-3-benzyl-5,6-dimethylbenzimidazolium chloride, 1-allyl-3-(2,4,6-trimethylbenzyl)-5,6-dimethylbenzimidazolium chloride, 1-allyl-3-(2,3,5,6-tetramethylbenzyl)-5,6-dimethylbenzimidazolium chloride, and 1-allyl-3-(2,3,4,5,6-pentamethylbenzyl)-5,6-dimethylbenzimidazolium chloride and Ag-NHC complexes of these molecules were synthesized and characterized by elemental analysis, FT-IR spectroscopy, 1H, and 13C{1H} NMR spectroscopy, LC-MS, and single crystal crystallography. Antimicrobial and biofilm formation inhibition activities of the molecules were evaluated. In addition, the activities of the molecules were examined in detail by molecular docking analysis. According to the results obtained, higher activity was achieved with the complex molecules when compared with the benzimidazole derivative ligands.
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Affiliation(s)
- Elvan Üstün
- Department of Chemistry, Faculty of Art and Science, Ordu University, 52200 Ordu, Turkey
| | - Neslihan Şahin
- Department of Basic Education, Faculty of Education, Cumhuriyet University, 58040, Sivas, Turkey.
- Department of Chemistry, Faculty of Science and Art, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280, Malatya, Turkey
| | - Cem Çelik
- Department of Medical Microbiology, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey
| | - Uğur Tutar
- Department of Botanica, Faculty of Pharmacy, Sivas Cumhuriyet University, Sivas, 58140, Turkey
| | - Namık Özdemir
- Department of Mathematics and Science Education, Faculty of Education, Ondokuz Mayıs University, 55139, Samsun, Turkey
| | - Nevin Gürbüz
- Department of Chemistry, Faculty of Science and Art, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280, Malatya, Turkey
- Drug Application and Research Center, İnönü University, 44280, Malatya, Turkey
| | - İsmail Özdemir
- Department of Chemistry, Faculty of Science and Art, İnönü University, 44280 Malatya, Turkey
- Catalysis Research and Application Center, İnönü University, 44280, Malatya, Turkey
- Drug Application and Research Center, İnönü University, 44280, Malatya, Turkey
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7
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Celepci DB, Yiğit B, Yiğit M, Özdemir İ, Aygün M. Amine-functionalized benzimidazolium salts: Synthesis, structural characterization, hirshfeld surface analysis and theoretical studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Serdaroğlu G, Şahin N, Şahin-Bölükbaşı S, Üstün E. Novel Ag(I)-NHC complex: synthesis, in vitro cytotoxic activity, molecular docking, and quantum chemical studies. ACTA ACUST UNITED AC 2021; 77:21-36. [PMID: 34225394 DOI: 10.1515/znc-2021-0130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/15/2021] [Indexed: 12/18/2022]
Abstract
The importance of organometallic complexes in cancer biology has attracted attention in recent years. In this paper, we look for the in vitro cytotoxic capability of novel benzimidazole-based N-heterocyclic carbene (NHC) precursor (1) and its Ag(I)-NHC complex (2). For this purpose, these novel Ag(I)-NHC complex (2) was characterized by spectroscopic techniques (1H, 13C{1H} nuclear magnetic resonance (NMR), and Fourier-transform infrared spectroscopy (FT-IR)). Then, in vitro cytotoxic activities of NHC precursor (1) and Ag(I)-NHC complex (2) were investigated against MCF-7, MDA-MB-231 human breast, DU-145 prostate cancer cells, and L-929 healthy cells using MTT assay for 24, 48, and 72 h incubation times. Ag(I)-NHC complex (2) showed promising in vitro cytotoxic activity against all cell lines for three incubation times, with IC50 values lower than 5 µM. It was also determined that (NHC) precursor (1) were lower in vitro cytotoxic activity than Ag(I)-NHC complex (2) against all cell lines. Selectivity indexes (SIs) of Ag(I)-NHC complex (2) against cancer cells were found higher than 2 for 24 and 48 h incubation time. Besides, the electronic structure and spectroscopic data of the newly synthesized precursor and its Ag-complex have been supported by density functional theory (DFT) calculations and molecular docking analysis. After, the anticancer activity of these compounds has been discussed considering the results of the frontier molecular orbital analysis. We hope that the obtained results from the experiments and computational tools will bring a new perspective to cancer research in terms of supported by quantum chemical calculations.
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Affiliation(s)
- Goncagül Serdaroğlu
- Math. and Sci. Edu., Faculty of Education, Sivas Cumhuriyet University, 58140 Sivas, Turkey
| | - Neslihan Şahin
- Department of Basic Education, Faculty of Education, Sivas Cumhuriyet University, 58140 Sivas, Turkey
- Department of Chemistry, Faculty of Science and Art, İnönü University, 44280 Malatya, Turkey
- Catalysis Research, and Application Center, İnönü University, 44280 Malatya, Turkey
| | - Serap Şahin-Bölükbaşı
- Department of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, 58140 Sivas, Turkey
| | - Elvan Üstün
- Department of Chemistry, Faculty of Science and Art, Ordu University, 52200 Ordu, Turkey
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9
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Üstün E, Çelebi MS, Ayvaz MÇ, Şahin N. PEPPSI complexes as potential prodrugs: enzyme inhibition, antioxidant activity, electrochemical characterization, molecular docking analysis. Z NATURFORSCH C 2021; 76:219-227. [PMID: 33792212 DOI: 10.1515/znc-2020-0295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/13/2021] [Indexed: 02/06/2023]
Abstract
In this study, enzyme inhibition and antioxidant activity analyzes of previously characterized pyridine-enhanced precatalyst preparation stabilization and initiation (PEPPSI)-type Palladium(II) complexes with benzimidazole-type ligands {dichloro[L]pyridine palladium(II), L1: 1-(2-methyl-2-propenyl)-3-[benzylbenzimidazole]-2-ylidene, L2: 1-(2-methyl-2-propenyl)-3-[4-chloro benzylbenzimidazole]-2-ylidene, L3: 1-(2-methyl-2-propenyl)-3-[3-methylbenzylbenzimidazole]-2-ylidene, L4: 1-(2-methyl-2-propenyl)-3-[3,4,5-thrimethoxybenzylbenzimidazole]-2-ylidene, L5: 1-(2-methyl-2-propenyl)-3-[3-naphthylbenzylbenzimidazole]-2-ylidene, L6: 1-(2-methyl-2-propenyl)-3-[anthracen-9-ylmethylbenzimidazole]-2-ylidene} were performed and evaluated as potential drugs for neurodegenerative disorders such as Alzheimer disease and Parkinson disease. Inhibition of tyrosinase enzyme of N-heterocyclic carbenes (NHC) complexes was determined for the first time in literature. Chelating activities of the complexes were determined and compared with EDTA. Electrochemical characterization was performed using cyclic voltammetry method. Moreover, global reactivity descriptors and electronic transitions were evaluated by DFT/TDDFT methods and molecular docking interactions with human acetylcholine esterase, human butyrylcholine esterase and oxidoreductase were studied.
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Affiliation(s)
- Elvan Üstün
- Department of Chemistry, Faculty of Science and Arts, Ordu University, 52200, Ordu, Turkey
| | - Mutlu S Çelebi
- Department of Chemistry, Faculty of Science and Arts, Ordu University, 52200, Ordu, Turkey
| | - Melek Ç Ayvaz
- Department of Chemistry, Faculty of Science and Arts, Ordu University, 52200, Ordu, Turkey
| | - Neslihan Şahin
- Department of Basic Education, Faculty of Education, Cumhuriyet University, Sivas, Turkey
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10
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1-Naphthols as components for multifunctional material systems (MFMS): the molecular modeling approach. Struct Chem 2020. [DOI: 10.1007/s11224-020-01674-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractIncreasing research interests have been paid to developing efficient multifunctional material systems (MFMS) by using various composite materials, owing to their useful properties and good stability. Here, we systematically studied 1-naphthols, especially how the type and position of a substituent influence the reactivity and properties, using different electron-directing groups. During computations, important preparation guidelines for thiol derivatives of 1-naphthol were obtained. It is very interesting to note that some molecules could exhibit intramolecular O–H–O interactions. Careful theoretical investigation reveals that all the tested compounds are stable and the molecules with substituents in positions 4 and 8 are the least reactive. It is also worth noting that for the stability and polarizability tensor values, it is more favorable when both substituents are in the same benzene ring. Among tested 1-naphthols, the greatest values of alpha, beta, and gamma are more than 5, 60, and 110 times better respectively, than in the urea molecule; the change of electron-withdrawing group (EWG) to electron-donating group (EDG) increases NLO effects. This study provided a new scope of 1-naphthols applicability by using them as anti-corrosion materials and as very good materials for NLO devices due to the high stability of the aromatic structure coupled with polarity given by the substituents. Also, the understanding of IR vibrations for more complex organic compounds with thiol substituent has been improved.
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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: 0.6] [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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12
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Uludağ N, Serdaroğlu G. New route for synthesis of 2-(2,2-dimethoxyethyl)-1,2,3,4,5,6-hexahydro-1,5-methanoazocino[4,3- b]indole and DFT investigation. Heliyon 2020; 6:e04105. [PMID: 32548324 PMCID: PMC7286972 DOI: 10.1016/j.heliyon.2020.e04105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/23/2020] [Accepted: 05/27/2020] [Indexed: 01/27/2023] Open
Abstract
Development of efficient sequences for the synthesis of the title compound (2-(2,2-dimethoxyethyl)-1,2,3,4,5,6-hexahydro-1,5-methanoazocino[4,3-b]indole) (7) was described. The title compound was synthesized through several steps starting from phenylhydrazine hydrochloride and dimethyl (R)-2-(3-oxocyclohexyl)malonate. In this route, all synthesized compounds were observed by spectroscopic tools (FT-IR, NMR): Methyl-2-(2,3,4,9-1H-carbazol-2-yl)acetate (3), 2-(2,3,4,9-tetrahydro-1H-carbazol-2-yl)acetic acid (4), N-(2,2-dimethoxyethyl)-2-(2,3,4,9-tetrahydro-1H-carbazol-2-yl)acetamide (5), 2-(2,2-dimethoxyethyl)-1,2,4,5,6,7-hexahydro-3H-1,5-methanoazocino[4,3-b]indol-3-one (6), 2-(2,2-dimethoxyethyl)-2,3,4,5,6,7-hexahydro-1H-1,5-methanoazocino[4,3-b]indole (7). The central step in these syntheses is the dehydrogenative reaction, which constructs the tetracyclic ring system from a much simpler tetracyclic precursor. The six-stable conformers of the compound (7) were used for further calculations such as FT-IR, NMR, NLO, and FMO analyses, performed at the B3LYP/6-311++G(d,p) level. This work revealed that (7) can be a good material to use in the non-linear optical material because its β tensor is greater ten times than that of the urea.
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Affiliation(s)
- Nesimi Uludağ
- Namık Kemal University, Department of Chemistry, 59030, Tekirdag, Turkey
| | - Goncagül Serdaroğlu
- Sivas Cumhuriyet University, Department of Science Education, 58040, Sivas, Turkey
- Corresponding author.
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13
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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: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Şahin N, Gürbüz N, Karabıyık H, Karabıyık H, Özdemir İ. Arylation of heterocyclic compounds by benzimidazole-based N-heterocyclic carbene-palladium(II) complexes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121076] [Citation(s) in RCA: 5] [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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15
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Şahin N, Serdaroğlu G, Düşünceli SD, Tahir MN, Arıcı C, Özdemir İ. Direct arylation of heteroarenes by PEPPSI-type palladium–NHC complexes and representative quantum chemical calculations for the compound which the structure was determined by X-ray crystallography. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1692202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Neslihan Şahin
- Faculty of Education, Department of Basic Education, Cumhuriyet University, Sivas, Turkey
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
| | - Goncagül Serdaroğlu
- Faculty of Education, Department of Science Education, Cumhuriyet University, Sivas, Turkey
| | - Serpil Demir Düşünceli
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
| | | | - Cengiz Arıcı
- The Scientific and Technological Research Council of Turkey, Ankara, Turkey
| | - İsmail Özdemir
- Faculty of Science and Art, Department of Chemistry, İnönü University, Malatya, Turkey
- Catalysis Research and Application Center, Inönü University, Malatya, Turkey
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16
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Serdaroğlu G. Harmine derivatives: a comprehensive quantum chemical investigation of the structural, electronic (FMO, NBO, and MEP), and spectroscopic (FT-IR and UV–Vis) properties. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04020-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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18
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Serdaroğlu G, Uludağ N. The synthesis and spectroscopic characterization of (+)-demethoxyaspidospermine: Density functional theory calculations of the structural, electronic, and non-linear optic and spectroscopic properties. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819875859] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
(+)-Demethoxyaspidospermine was synthesized via the acylation of aspidospermidine with acetic anhydride, and the structure was determined by elemental analysis and Fourier-transform infrared and nuclear magnetic resonance spectroscopic tools and was supported by the simulated spectroscopic studies. Next, the stable geometries obtained by the conformational analysis performed at the B3LYP/6-31G(d, p) level were used for further investigations carried out in B3LYP and M06-2X functionals, and Hartree–Fock (HF) method, employed by the 6-311++G(d, p) basis set. Also, the natural bond orbital analysis revealed that the most contribution to the lowering of the stabilization energy came from n → π* and π → π* interactions. Moreover, the non-linear optic analysis has shown that the title compound can be a useful agent in the optoelectronic devices because of the optical properties. Also, the chemical reactivity tendency for nucleophilic or electrophilic attack reactions on the compound was evaluated by frontier molecular orbital analysis, and the reactive sites of the compound was shown by highest molecular orbital and lowest unoccupied orbital amplitudes and molecular electrostatic potential diagrams.
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Affiliation(s)
| | - Nesimi Uludağ
- Department of Chemistry, Tekirdag Namik Kemal University, Tekirdag, Turkey
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Serdaroğlu G, Uludağ N. Spectroscopic (FT-IR, NMR) and Computational Investigation of 2-(2-Aminoethyl)-1,2,3,4,9-Tetrahydrocarbazole: NBO, NLO, FMO, MEP Analysis. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619080079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Uludağ N, Serdaroğlu G. A DFT Investigation on the Structure, Spectroscopy (FT‐IR and NMR), Donor‐Acceptor Interactions and Non‐Linear Optic Properties of (±)‐1,2‐Dehydroaspidospermidine. ChemistrySelect 2019. [DOI: 10.1002/slct.201901383] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nesimi Uludağ
- Namık Kemal UniversityDepartment of Chemistry 59030 Tekirdag Turkey
| | - Goncagül Serdaroğlu
- Sivas Cumhuriyet UniversityDepartment of Science Education 58040 Sivas Turkey
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