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Chugaeva UY, Raouf M, Morozova NS, Mahdavian L. Effects of L-ascorbic acid (C 6H 8O 6: Vit-C) on collagen amino acids: DFT study. Amino Acids 2023; 55:1655-1664. [PMID: 37782378 DOI: 10.1007/s00726-023-03339-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/19/2023] [Indexed: 10/03/2023]
Abstract
Vitamin C plays a very important role in the repair of connective tissue, especially for sports whose training causes the most damage to this tissue. Therefore, many people believe that L-ascorbic acid (C6H8O6: vitamin C) reduces the recovery time between sports exercises. The most abundant form of structural protein in the body is collagen. Collagen is characterized by a high concentration of the three amino acids glycine (Gly), proline (Pro), and hydroxyproline (Hyp), which creates its characteristic triple helix structure. Therefore, in this study, the effect of vitamin C presence on the sequence, interaction, and orientation of amino acids for collagen formation is investigated using computational simulation. This study aimed to investigate the mechanism of action of vitamin C in terms of thermodynamics and structure of the reaction. The calculations are performed using density function theory (DFT) by the base set of B3LYP/6-311++G (p,d). The results show that the presence of vitamin C is effective in the formation of collagen protein for this interaction and the mechanism of amino acid sequence (Gly-Hyp-Pro) is better in the formation of collagen protein in the presence of vitamin C. The presence of Vit-C in the formation and direction of hydroxyproline (Hyp) causes its separation from the prolyl 5-hydroxylase enzyme. In the absence of vitamin C, the reaction stops at this stage and proline cannot be converted into hydroxyproline. The computational data shows vitamin C prevents unwanted interactions and directs amino acid reactions to repair connective tissue (collagen). Therefore, vitamin C acts as a cofactor in the Prolyl 5-Hydroxylase enzyme and causes it to convert proline to hydroxyl.
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Affiliation(s)
- Uliana Y Chugaeva
- Department of Pediatric, Preventive Dentistry and Orthodontics, Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Mahmoud Raouf
- Department of Physical Education, Doroud Branch, Islamic Azad University, Doroud, Iran
| | - Natalia S Morozova
- Department of Pediatric, Preventive Dentistry and Orthodontics, Institute of Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Leila Mahdavian
- Department of Chemistry, Doroud Branch, Islamic Azad University, Doroud, Iran.
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2
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Keskin E, Arslan H. Synthesis, crystal structure, DFT calculations, and Hirshfeld surface analysis of an NNN pincer type compound. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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3
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Yu C, Kim YJ, Kim J, Eum K. ZIF-L to ZIF-8 Transformation: Morphology and Structure Controls. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4224. [PMID: 36500846 PMCID: PMC9740542 DOI: 10.3390/nano12234224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/24/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The control of the structure, shape, and components of metal-organic frameworks, in which metal ions and organic ligands coordinate to form crystalline nanopore structures, plays an important role in the use of many electrochemical applications, such as energy storage, high-performance photovoltaic devices, and supercapacitors. In this study, systematic controls of synthesis variables were performed to control the morphology of ZIF-8 during the ZIF-L-to-ZIF-8 transformation of ZIF-L, which has the same building block as ZIF-8 but forms a two-dimensional structure. Furthermore, additional precursors or surfactants (Zn2+, 2mIm, and CTAB) were introduced during the transition to determine whether the alteration could be regulated. Lastly, the partial substitution insertion of a new organic precursor, 2abIm, during the ZIF-L-to-ZIF-8 transformation of ZIF-L was achieved, and modulation of the adsorption and pore characteristics (suppression of gate-opening properties of ZIF-8) has been confirmed.
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Ayari C, Alotaibi AA, Baashen MA, Perveen F, Almarri AH, Alotaibi KM, Abdelbaky MSM, Garcia-Granda S, Othmani A, Nasr CB, Mrad MH. A New Zn(II) Metal Hybrid Material of 5-Nitrobenzimidazolium Organic Cation (C 7H 6N 3O 2) 2[ZnCl 4]: Elaboration, Structure, Hirshfeld Surface, Spectroscopic, Molecular Docking Analysis, Electric and Dielectric Properties. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7973. [PMID: 36431459 PMCID: PMC9697581 DOI: 10.3390/ma15227973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
The slow solvent evaporation approach was used to create a single crystal of (C7H6N3O2)2[ZnCl4] at room temperature. Our compound has been investigated by single-crystal XRD which declares that the complex crystallizes in the monoclinic crystallographic system with the P21/c as a space group. The molecular arrangement of the compound can be described by slightly distorted tetrahedral ZnCl42- anionic entities and 5-nitrobenzimidazolium as cations, linked together by different non-covalent interaction types (H-bonds, Cl…Cl, π…π and C-H…π). Hirshfeld's surface study allows us to identify that the dominant contacts in the crystal building are H…Cl/Cl…H contacts (37.3%). FT-IR method was used to identify the different groups in (C7H6N3O2)2[ZnCl4]. Furthermore, impedance spectroscopy analysis in 393 ≤ T ≤ 438 K shows that the temperature dependence of DC conductivity follows Arrhenius' law. The frequency-temperature dependence of AC conductivity for the studied sample shows one region (Ea = 2.75 eV). In order to determine modes of interactions of compound with double stranded DNA, molecular docking simulations were performed at molecular level.
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Affiliation(s)
- Chaima Ayari
- Materials Chemistry Laboratory, Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Bizerte 7021, Tunisia
| | - Abdullah A. Alotaibi
- Department of Chemistry, College of Sciences and Humanities, Shaqra University, Ad-Dawadmi 11911, Saudi Arabia
| | - Mohammed A. Baashen
- Department of Chemistry, College of Sciences and Humanities, Shaqra University, Ad-Dawadmi 11911, Saudi Arabia
| | - Fouzia Perveen
- School of Interdisciplinary Engineering and Sciences (SINES), NUST, H-12, Islamabad 44000, Pakistan
| | - Abdulhadi H. Almarri
- Department of Chemistry, University College of Al-Wajah, University of Tabuk, Tabuk 71421, Saudi Arabia
| | - Khalid M. Alotaibi
- Department of Chemistry, College of Science, King Saud University, Riyadh 12271, Saudi Arabia
| | | | - Santiago Garcia-Granda
- Department of Physical and Analytical Chemistry, University of Oviedo-CINN, 33006 Oviedo, Spain
| | - Abdelhak Othmani
- Laboratory of Material Physics: Structures and Properties, LR01 ES15, Faculty of Sciences, University of Carthage, Zarzouna, Bizerte 7021, Tunisia
| | - Cherif Ben Nasr
- Materials Chemistry Laboratory, Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Bizerte 7021, Tunisia
| | - Mohamed Habib Mrad
- Materials Chemistry Laboratory, Faculty of Sciences of Bizerte, University of Carthage, Zarzouna, Bizerte 7021, Tunisia
- Department of Chemistry, College of Sciences and Humanities, Shaqra University, Ad-Dawadmi 11911, Saudi Arabia
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Cui J, Zhou L, Zhang X, Wei X, Yan H. Revealing the regioselective N-acylation of 5-bromo-2-aminobenzimidazole using experiment and theoretical calculation. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Moghadam G, Abdi J, Banisharif F, Khataee A, Kosari M. Nanoarchitecturing hybridized metal-organic framework/graphene nanosheet for removal of an organic pollutant. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Synthesis, spectral characterization and biological evaluations with DFT analysis on molecular geometry and NLO of 1,4,7,10-tetraazacyclotetradecane-11,14-dione. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Synthesis, Light Harvesting Efficiency, Photophysical and Nonlinear Optical Properties of 3-(5-(4-hydroxybenzylideneamino)naphthalen-1-yliminomethyl)phenol: Spectroscopic and Quantum chemical approach. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04579-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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9
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Li J, Deng ZY, He Y, Fan Y, Dong H, Chen R, Liu R, Tsao R, Liu X. Differential specificities of polyphenol oxidase from lotus seeds (Nelumbo nucifera Gaertn.) toward stereoisomers, (−)-epicatechin and (+)-catechin: Insights from comparative molecular docking studies. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Zaoui T, Debdab M, Haddad B, Belarbi EH, Chaker Y, Rahmouni M, Bresson S, Baeten V. Synthesis, vibrational and thermal properties of new functionalized 1- (2-hydroxyethyl) -3-methylimidazolium dihydrogenophosphate ionic liquid. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Finšgar M. The influence of the amino group in 3-amino-1,2,4-triazole corrosion inhibitor on the interface properties for brass studied by ToF-SIMS. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e9056. [PMID: 33522034 DOI: 10.1002/rcm.9056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/30/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
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12
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Improved propylene/propane separation performance under high temperature and pressures on in-situ ligand-doped ZIF-8 membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118655] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Electronic and nonlinear optical properties of 3-(((2-substituted-4-nitrophenyl)imino)methyl)phenol. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.113050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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14
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Finšgar M. Surface analysis and interface properties of 2-aminobenzimidazole corrosion inhibitor for brass in chloride solution. Anal Bioanal Chem 2020; 412:8431-8442. [DOI: 10.1007/s00216-020-02981-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/23/2020] [Accepted: 09/30/2020] [Indexed: 10/23/2022]
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15
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Electronic and nonlinear optical properties of 2-(((5-aminonaphthalen-1-yl)imino)methyl)phenol: Experimental and time-dependent density functional studies. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114157] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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Synthesis, conformational studies, vibrational spectra and thermal properties, of new 1,4-(phenylenebis(methylene) bis(methyl-imidazolium) ionic liquids. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Hassen S, Chebbi H, Arfaoui Y, Robeyns K, Steenhaut T, Hermans S, Filinchuk Y. Spectroscopic and structural studies, thermal characterization, optical proprieties and theoretical investigation of 2-aminobenzimidazolium tetrachlorocobaltate(II). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118612. [PMID: 32604047 DOI: 10.1016/j.saa.2020.118612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/24/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
In this study we present the crystal structure, spectroscopic and thermal behavior, Hirshfeld surface analysis, and DFT calculations of a new organic-inorganic hybrid compound (C7H8N3)2[CoCl4]. This compound crystallizes in the centrosymmetric space group P1¯. Single-crystal X-ray diffraction analysis indicates that structure consists of a succession of mixed layers formed by organic cations and inorganic anions parallel to the (001) plane and propagate according to the c-axis. Layers further are assembled into a 3D supramolecular architecture through N-H…Cl hydrogen bonds and π…π interactions. The peak positions of the experimental PXRD pattern are in agreement with the simulated ones from the crystal structure, indicating phase purity of the title compound. The presence of the different functional groups and the nature of their vibrations were identified by ATR-FTIR and FT-Raman spectroscopies. The tetrahedral environment of Co2+ was confirmed by UV-visible spectroscopy, where the spectrum shows three weak absorption bands in the visible range due to d-d electronic transitions 4A2(F) → 4T2(F), 4A2(F) → 4T1(F) and 4A2(F) → 4T1(P) typical of Co(II) coordination compounds. The direct and indirect optical band gap values were determined by Tauc method. The optimized structure and calculated vibrational frequencies were obtained by density functional theory (DFT) using B3LYP functional. TGA and DSC coupled to mass spectrometry (MS) experiments under argon atmosphere in the temperature range (25-950 °C) were carried out in order to determine the thermal stability of the title compound.
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Affiliation(s)
- S Hassen
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Characterizations, Applications and Modeling of Materials, 2092 El Manar II, Tunis, Tunisia
| | - H Chebbi
- University of Tunis, Preparatory Institute for Engineering Studies of Tunis, Street Jawaher Lel Nehru, 1089 Montfleury, Tunis, Tunisia; University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, 2092 El Manar II, Tunis, Tunisia.
| | - Y Arfaoui
- University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Characterizations, Applications and Modeling of Materials, 2092 El Manar II, Tunis, Tunisia
| | - K Robeyns
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - T Steenhaut
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - S Hermans
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Y Filinchuk
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
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18
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Patel JJ, Morja MI, Chikhalia KH. An efficient synthesis of designed 4‐thiazolidinone fused pyrimidine derivatives as potent antimicrobial agents. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Janki J. Patel
- Department of chemistry Veer Narmad South Gujarat University Surat India
| | - Mayur I. Morja
- Department of chemistry Veer Narmad South Gujarat University Surat India
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19
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Cruz A, Martínez IIP, Ramos-Organillo AA. Methods to Access 2-aminobenzimidazoles of Medicinal Importance. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191023150201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:Benzimidazole (BI) and derivatives are interesting because several of these compounds have been found to have a diversity of biological activities with clinical applications. In view of their importance, the synthesis of BI and its derivatives is still considered as a challenge for synthetic chemists. Examples of compounds used in medicinal chemistry containing BI, as important nucleus, are Astemizole (antihistaminic), Omeprazole (antiulcerative) and Rabendazole (fungicide), some of these compounds have the 2- aminobenzimidazole (2ABI) as base nucleus. The structure of 2ABI derivatives contains a cyclic guanidine moiety, which is interesting because of its free lone pairs, labile hydrogen atoms and planar delocalized structure. The delocalized 10-π electron system and the extension of the electron conjugation with the exocyclic amino group, in 2ABI, making these heterocycles to have amphoteric character. The 2ABI has been used as building blocks for the synthesis of several BI derivatives as medicinally important molecules. On these bases, herein, we present a bibliographic review concerning the recent methodologies used in the synthesis of 2ABIs, including the substituted ones.
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Affiliation(s)
- Alejandro Cruz
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Itzia I. Padilla Martínez
- Instituto Politécnico Nacional-UPIBI, Laboratorio de Química Supramolecular y Nanociencias, Av. Acueducto s/n, Barrio la Laguna Ticomán, México, D. F, 07340, Mexico
| | - Angel A. Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, Km 9 Carr. Colima- Coquimatlán, 28400, Coquimatlán, Colima, Mexico
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20
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Churakov AV, Grishanov DA, Medvedev AG, Mikhaylov AA, Vener MV, Navasardyan MA, Tripol'skaya TA, Lev O, Prikhodchenko PV. Stabilization of hydrogen peroxide by hydrogen bonding in the crystal structure of 2-aminobenzimidazole perhydrate. CrystEngComm 2020. [DOI: 10.1039/d0ce00096e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
2-Aminobenzimidazole peroxosolvate – the third H2O2 crystalline adduct stabilized with the maximum possible number of hydrogen bonds formed by one hydrogen peroxide molecule.
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Affiliation(s)
- Andrei V. Churakov
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Dmitry A. Grishanov
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
- The Casali Center
| | - Alexander G. Medvedev
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Alexey A. Mikhaylov
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Mikhail V. Vener
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
- Department of Quantum Chemistry
| | - Mger A. Navasardyan
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Tatiana A. Tripol'skaya
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Ovadia Lev
- The Casali Center
- The Institute of Chemistry and The Harvey M. Krueger Family Center for Nanoscience and Nanotechnology
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Petr V. Prikhodchenko
- Kurnakov Institute of General and Inorganic Chemistry
- Russian Academy of Sciences
- Moscow 119991
- Russia
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22
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Eum K, Hayashi M, De Mello MD, Xue F, Kwon HT, Tsapatsis M. ZIF-8 Membrane Separation Performance Tuning by Vapor Phase Ligand Treatment. Angew Chem Int Ed Engl 2019; 58:16390-16394. [PMID: 31568623 DOI: 10.1002/anie.201909490] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Indexed: 11/11/2022]
Abstract
Vapor phase ligand treatment (VPLT) of 2-aminobenzimidazole (2abIm) for 2-methylimidazole (2mIm) in ZIF-8 membranes prepared by two different methods (LIPS: ligand induced permselectivation and RTD: rapid thermal deposition) results in a notable shift of the molecular level cut-off to smaller molecules establishing selectivity improvements from ca. 1.8 to 5 for O2 /N2 ; 2.2 to 32 for CO2 /CH4 ; 2.4 to 24 for CO2 /N2 ; 4.8 to 140 for H2 /CH4 and 5.2 to 126 for H2 /N2 . Stable (based on a one-week test) oxygen-selective air separation performance at ambient temperature, 7 bar(a) feed, and 1 bar(a) sweep-free permeate with a mixture separation factor of 4.5 and oxygen flux of 2.6×10-3 mol m-2 s-1 is established. LIPS and RTD membranes exhibit fast and gradual evolution upon a 2abIm-VPLT, respectively, reflecting differences in their thickness and microstructure. Functional reversibility is demonstrated by showing that the original permeation properties of the VPLT-LIPS membranes can be recovered upon 2mIm-VPLT.
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Affiliation(s)
- Kiwon Eum
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455-0132, USA
| | - Mikio Hayashi
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455-0132, USA.,Science & Innovation Center, Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi, Kanagawa, 227-8502, Japan.,Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA
| | - Matheus Dorneles De Mello
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455-0132, USA
| | - Feng Xue
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455-0132, USA
| | - Hyuk Taek Kwon
- Department of Chemical Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea
| | - Michael Tsapatsis
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN, 55455-0132, USA.,Department of Chemical and Biomolecular Engineering & Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD, 21218, USA.,Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, Laurel, MB, 20723, USA
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Structural studies of 3-[(E)-[(2E)-2-methyl-3-phenylprop-2-en-1-ylidene] amino]-1-phenylthiourea: Combined experimental and computational studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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The Corrosion Inhibition of AA6082 Aluminium Alloy by Certain Azoles in Chloride Solution: Electrochemistry and Surface Analysis. COATINGS 2019. [DOI: 10.3390/coatings9060380] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The corrosion inhibition effect of five azole compounds on the corrosion of an AA6082 aluminium alloy in 5 wt.% NaCl solution at 25 and 50 °C was investigated using weight loss and electrochemical measurements. Only 2-mercaptobenzothiazole (MBT) showed a corrosion inhibition effect at both temperatures and was further studied in detail, including with the addition of potassium iodide as a possible intensifier. Surface analysis of the MBT surface layer was performed by means of attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and time-of-flight secondary ion mass spectrometry techniques. The hydrophobicity of the MBT surface layer was also investigated.
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25
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Synthesis, thermal stability, vibrational spectra and conformational studies of novel dicationic meta-xylyl linked bis-1-methylimidazolium ionic liquids. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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26
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Saiadali Fathima K, Sathiyendran M, Anitha K. Structure elucidation, biological evaluation and molecular docking studies on a new organic salt: 2-Aminobenzimidazolium 5-nitro-2-hydroxybenzoate. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Fathima KS, Sathiyendran M, Anitha K. Structure elucidation, biological evaluation and molecular docking studies of 3-aminoquinolinium 2-carboxy benzoate- A proton transferred molecular complex. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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28
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Haddad B, Paolone A, Drai M, Boumediene M, Villemin D, Belarbi EH, Rahmouni M, Bresson S, Abbas O. Para-xylyl linked bis-imidazolium ionic liquids: A study of the conformers of the cation and of the anion-cation hydrogen bonding. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.07.096] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Popoola SA, Ullah N, Al-Saadi AA. Spectroscopic and DFT assessment of bridging ligand effect on the structural and electronic properties of dinuclear iridium- and rhodium-based complexes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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K SF, M S, K A. Structural investigation and molecular docking studies of 2-amino-1H-benzimidazolium 2-hydroxybenzoate and 2-amino-1H-benzimidazolium pyridine 2-carboxylate single crystal. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:103-114. [PMID: 30033237 DOI: 10.1016/j.msec.2018.05.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 04/18/2018] [Accepted: 05/08/2018] [Indexed: 10/16/2022]
Abstract
The molecular complexes of 2-amino-1H-benzimidazolium 2-hydroxybenzoate (2ABHB) and 2-amino-1H-benzimidazolium pyridine 2-carboxylate (2ABP2C) were synthesised from a donor 2-aminobenzimidazole (2AB), and acceptors, 2-hydroxybenzoate (2HB) and pyridine 2-carboxylic acid (P2C) respectively. The brown colour single crystals were successfully grown by slow evaporation solution growth technique. The densities of grown crystals 2ABHB and 2ABP2C were measured by floatation method using carbon tetrachloride and xylene as solvents. The single crystal X-ray diffraction reveals the molecular structures of compounds 2ABHB and 2ABP2C. Both the structures contain positively charged 2-aminobenzimidazolium cation, 2ABHB contains negatively charged 2-hydroxybenzoate anion and 2ABP2C contains pyridine 2 carboxylic acid anions. 1H and 13C NMR spectral analyses were used to predict the presence of proton and carbon in the title compounds. The FTIR and Raman spectra have been recorded to detect the vibrational modes of functional groups present in the 2ABHB and 2ABP2C compounds. The proton transfer between the cation and anion was confirmed by UV-Vis spectra of both compounds. For both the compounds, thermal behaviour and stability of the crystals were studied using thermogravimetric and differential thermal analyses technique respectively. Further, the anti-bacterial activity of 2ABHB and 2ABP2C complex against Staphylococcus aureus, Klebsiella pneumonia, Pseudomonas eruginos and E. coli pathogens were investigated.
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Affiliation(s)
- Saiadali Fathima K
- CAD4 Laboratory, Department of Physics, School of Physics, Madurai Kamaraj University, Madurai 625021, Tamilnadu, India
| | - Sathiyendran M
- Chemistry Research Centre, National Engineering College, Kovilpatti 628503, Tamilnadu, India
| | - Anitha K
- CAD4 Laboratory, Department of Physics, School of Physics, Madurai Kamaraj University, Madurai 625021, Tamilnadu, India.
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31
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Torkzadeh M, Moosavi M. A combined molecular dynamics simulation and quantum mechanics study on the physisorption of biodegradable CBNAILs on h-BN nanosheets. J Chem Phys 2018; 149:074704. [DOI: 10.1063/1.5039476] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
| | - Majid Moosavi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
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32
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Electrochemical and Surface Analysis of 2-Phenylimidazole Adsorbed on Copper from Chloride Solution. COATINGS 2018. [DOI: 10.3390/coatings8070234] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Haddad B, Paolone A, Villemin D, Lohier JF, Drai M, Bresson S, Abbas O, Belarbi EH. para‑Xylyl bis‑1‑methylimidazolium bis(trifluoromethanesulfonyl)imide: Synthesis, crystal structure, thermal stability, vibrational studies. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.113] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Murthy PK, Smitha M, Sheena Mary Y, Armaković S, Armaković SJ, Rao RS, Suchetan P, Giri L, Pavithran R, Van Alsenoy C. Supramolecular architecture of 5-bromo-7-methoxy-1-methyl-1 H -benzoimidazole.3H 2 O: Synthesis, spectroscopic investigations, DFT computation, MD simulations and docking studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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36
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Design and synthesis of some novel 7-substituted thiosemicarbazinyl-quinolines via Ullmann coupling reaction and examination of their antimicrobial activities. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3136-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Fathima KS, Kavitha P, Anitha K. Synthesis, crystal growth and characterization of bioactive material: 2- Amino-1H-benzimidazolium pyridine-3-carboxylate single crystal- a proton transfer molecular complex. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.04.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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38
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Benzon K, Mary YS, Varghese HT, Panicker CY, Armaković S, Armaković SJ, Pradhan K, Nanda AK, Van Alsenoy C. Spectroscopic, DFT, molecular dynamics and molecular docking study of 1-butyl-2-(4-hydroxyphenyl)-4,5-dimethyl-imidazole 3-oxide. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.100] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Murugavel S, Sundramoorthy S, Lakshmanan D, Subashini R, Pavan Kumar P. Synthesis, crystal structure analysis, spectral (NMR, FT-IR, FT-Raman and UV–Vis) investigations, molecular docking studies, antimicrobial studies and quantum chemical calculations of a novel 4-chloro-8-methoxyquinoline-2(1H)-one: An effective antimicrobial agent and an inhibition of DNA gyrase and lanosterol-14α-demethylase enzymes. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Benzon K, Sheena MY, Panicker CY, Armaković S, Armaković SJ, Pradhan K, Nanda AK, Van Alsenoy C. Studies on the synthesis, spectroscopic analysis, molecular docking and DFT calculations on 1-hydroxy-2-(4-hydroxyphenyl)-4,5-dimethyl-imidazol 3-oxide. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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41
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Agrawal M, Kumar A, Gupta A. Conformational stability, spectroscopic signatures and biological interactions of proton pump inhibitor drug lansoprazole based on structural motifs. RSC Adv 2017. [DOI: 10.1039/c7ra00130d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structure based biological and chemical properties of lansoprazole (LSP) have been studied by spectroscopic and quantum chemical methods.
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Affiliation(s)
- Megha Agrawal
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
| | - Amit Kumar
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
| | - Archana Gupta
- Department of Applied Physics
- Faculty of Engineering & Technology
- M. J. P. Rohilkhand University
- Bareilly
- India
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42
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Murugavel S, Vetri velan V, Kannan D, Bakthadoss M. Synthesis of a novel methyl(2E)-2-{[N-(2-formylphenyl)(4-methylbenzene) sulfonamido]methyl}-3-(2-methoxyphenyl)prop-2-enoate: Molecular structure, spectral, antimicrobial, molecular docking and DFT computational approaches. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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43
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Xhanari K, Finšgar M. The first electrochemical and surface analysis of 2-aminobenzimidazole as a corrosion inhibitor for copper in chloride solution. NEW J CHEM 2017. [DOI: 10.1039/c7nj01209h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High corrosion inhibition effectiveness of 2-aminobenzimidazole is proven after a long-term immersion period in 3 wt% NaCl solution.
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Affiliation(s)
- Klodian Xhanari
- University of Maribor
- Faculty of Chemistry and Chemical Engineering
- 2000 Maribor
- Slovenia
- University of Tirana
| | - Matjaž Finšgar
- University of Maribor
- Faculty of Chemistry and Chemical Engineering
- 2000 Maribor
- Slovenia
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44
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Murugavel S, Stephen CJP, Subashini R, Reddy HR, AnanthaKrishnan D. Synthesis, crystal structure investigation, spectroscopic characterizations and DFT computations on a novel 1-(2-chloro-4-phenylquinolin-3-yl)ethanone. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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45
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Chidan Kumar C, Quah CK, Balachandran V, Fun HK, Asiri A, Chandraju S, Karabacak M. Synthesis, single crystal structure, spectroscopic characterization and molecular properties of (2E)-3-(2,6-dichlorophenyl)-1-(3,4-dimethoxyphenyl)prop-2-en-1-one. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.089] [Citation(s) in RCA: 4] [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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46
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Murugavel S, Vetri velan V, Kannan D, Bakthadoss M. Experimental and computational approaches of a novel methyl (2E)-2-{[N-(2-formylphenyl)(4-methylbenzene)sulfonamido]methyl}-3-(4-chlorophenyl)prop-2-enoate: A potential antimicrobial agent and an inhibition of penicillin-binding protein. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Murugavel S, Vetri Velan V, Kannan D, Bakthadoss M. Synthesis, crystal structure analysis, spectral investigations, DFT computations, Biological activities and molecular docking of methyl(2E)-2-{[N-(2-formylphenyl)(4-methylbenzene) sulfonamido]methyl}-3-(4-fluorophenyl)prop-2-enoate, a potential bioactive agent. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.11.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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48
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Karabacak M, Bilgili S, Atac A. Molecular structure, spectroscopic characterization, HOMO and LUMO analysis of 3,3'-diaminobenzidine with DFT quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:83-93. [PMID: 26026306 DOI: 10.1016/j.saa.2015.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 04/28/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
In this work, infrared, Raman and UV spectra of 3,3'-diaminobenzidine (3,3-DAB) were carried out by using density functional theory (DFT)/B3LYP method with 6-311G(d,p) basis set. FT-IR and FT-Raman spectra were recorded in the region 4000-400 and 4000-50 cm(-1), respectively. The geometrical parameters, energies and wavenumbers were obtained and fundamental vibrations were assigned on the basis of the potential energy distribution (PED) of the vibrational modes. The UV spectrum of the investigated compound was recorded in the range of 200-400 nm in ethanol and water solutions. The electronic properties, such as excitation energies, absorption wavelengths, HOMO and LUMO energies were performed by DFT/B3LYP approach and the results were compared with experimental observations. Thermodynamic properties, Mulliken atomic charges and molecular electrostatic potential (MEP) were calculated for the title molecule. Also the nonlinear optical properties of 3,3-DAB molecule were explored theoretically. As a result, the calculated results were compared with the observed values and generally found to be in good agreement.
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Affiliation(s)
- Mehmet Karabacak
- Department of Mechatronics Engineering, H.F.T. Technology Faculty, Celal Bayar University, Turgutlu, Manisa, Turkey
| | - Sibel Bilgili
- Department of Physics, Celal Bayar University, Manisa, Turkey
| | - Ahmet Atac
- Department of Physics, Celal Bayar University, Manisa, Turkey.
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49
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Thiaré D, Khonté A, Diop A, Cissé L, Coly A, Tine A, Delattre F. Determination of ground and excited state dipole moments of amino-benzimidazole by solvatochromic shift methods and theoretical calculations. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.07.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Bhavani K, Renuga S, Muthu S, Sankara Narayanan K. Quantum mechanical study and spectroscopic (FT-IR, FT-Raman, (13)C, (1)H) study, first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of 2-acetoxybenzoic acid by density functional methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1260-1268. [PMID: 25456668 DOI: 10.1016/j.saa.2014.10.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 07/18/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
In this work, colorless crystals of 2-acetoxybenzoic acid were grown by slow evaporation method and the FT-IR and FT-Raman spectra of the sample were recorded in the region 4000-500cm(-1) and 4000-100cm(-1) respectively. Molecular structure is optimized with the help of density functional theory method (B3LYP) with 6-31+G(d,p), 6-311++G(d,p) basis sets. Stability of the molecule arising from hyperconjugation and charge delocalization is confirmed by the natural bond orbital analysis (NBO). The results show that electron density (ED) in the σ(∗) antibonding orbitals and E(2) energies confirms the occurrence of intramolecular charge transfer (ICT) within the molecule. The assignments of the vibrational spectra have been carried out with the help of normal coordinate analysis following the scaled quantum mechanical force field (SQMFF) methodology. The results of the calculations were applied to simulated spectra of the title compound, which show excellent agreement with observed spectra. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by GIAO method. Mulliken population analysis on atomic charges is also calculated. The calculated HOMO and LUMO energy gap shows that charge transfer occurs within the molecule.
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Affiliation(s)
- K Bhavani
- Department of Physics, SRM University, Chennai, Tamil Nadu, India
| | - S Renuga
- Department of Physics, Indira Institute of Enginnering and Technology, Thiruvallur, Tamil Nadu, India
| | - S Muthu
- Department of Physics, Sri Venkateswara College of Engg, Sriperumbudur 602105, Tamil Nadu, India.
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