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Odey DO, Louis H, Ita DK, Edet HO, Ashishie PB, Gber TE, Akinterinwa A, Effa AG. Intermolecular interactions of cytosine DNA nucleoside base with Gallic acid and its Methylgallate and Ethylgallate derivatives. ChemistrySelect 2023. [DOI: 10.1002/slct.202203832] [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]
Affiliation(s)
- Diana O. Odey
- Department of Biochemistry Cross River University Nigeria
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
| | - Hitler Louis
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
- Department of Pure and Applied Chemistry University of Calabar Calabar Nigeria
| | - Dollars K. Ita
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
- Department of Pure and Applied Chemistry University of Calabar Calabar Nigeria
| | - Henry O. Edet
- Department of Biochemistry Cross River University Nigeria
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
| | - Providence B. Ashishie
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
- Department of Pure and Applied Chemistry University of Calabar Calabar Nigeria
| | - Terkumbur E. Gber
- Department of Biochemistry Cross River University Nigeria
- Computational and Bio-Simulation Research Group University of Calabar Calabar Nigeria
| | - Ayodele Akinterinwa
- Department of Pure and Applied Chemistry University of Calabar Calabar Nigeria
| | - Anagbogu G. Effa
- Department of Pure and Applied Chemistry University of Calabar Calabar Nigeria
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Yaman M, İpek Dirin E, Kaplan G, Seferoğlu N, Seferoğlu Z. The synthesis, photophysical properties, DFT study and textile applications of fluorescent azo dyes bearing coumarin-thiazole. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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3
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Mediavilla M, Revenga-Parra M, Gutiérrez-Sánchez C, Hernández-Apaolaza L, Pariente F, Lorenzo E. Fluorescent enzymatic assay for direct total polyphenol determination in food-related samples. Talanta 2022; 247:123576. [DOI: 10.1016/j.talanta.2022.123576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/28/2022]
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Karimova NV, Luo M, Sit I, Grassian VH, Gerber RB. Absorption Spectra and the Electronic Structure of Gallic Acid in Water at Different pH: Experimental Data and Theoretical Cluster Models. J Phys Chem A 2022; 126:190-197. [PMID: 34990547 DOI: 10.1021/acs.jpca.1c07333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gallic acid (GA) has been characterized in terms of its optical properties in aqueous solutions at varying pH in experiments and in theoretical calculations by analyzing the protonated and deprotonated forms of GA. This work is part of a series of studies of the optical properties of different carboxylic acids in aqueous media. The experimental electronic spectra of GA exhibit two strong well-separated absorption peaks (B- and C-bands), which agree with previous studies. However, in the current study, an additional well-defined low-energy shoulder band (A-band) in the optical spectra of GA was identified. It is likely that the A-band occurs for other carboxylic acids in solution, but because it can overlap with the B-band, it is difficult to discern. The theoretical calculations based on density functional theory were used to simulate the optical absorption spectra of GA in water at different pH to prove the existence of this newly found shoulder band and to describe and characterize the full experimental optical spectra of GA. Different cluster models were tested: (i) all water molecules are coordinated near the carboxy-group and (ii) additional water molecules near the hydroxy-groups of the phenyl ring were included. In this study, we found that both the polarizable continuum model (dielectric property of a medium) and neighboring water molecules (hydrogen-bonding) play significant roles in the optical spectrum. The results showed that only an extended cluster model with water molecules near carboxy- and hydroxy-groups together with the polarizable continuum model allowed us to fully reproduce the experimental data and capture all three absorption bands (A, B, and C). The oscillator strengths of the absorption bands were obtained from the experimental data and compared with theoretical results. Additionally, our work provides a detailed interpretation of the pH effects observed in the experimental absorption spectra.
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Affiliation(s)
- Natalia V Karimova
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Man Luo
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, California 92093, United States
| | - Izaac Sit
- Department of Nanoengineering, University of California San Diego, San Diego, California 92093, United States
| | - Vicki H Grassian
- Department of Chemistry and Biochemistry, University of California San Diego, San Diego, California 92093, United States
| | - R Benny Gerber
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States.,Institute of Chemistry and Fritz Haber Research Center, Hebrew University of Jerusalem, Jerusalem 91904, Israel
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Srivastava S, Ansari NA, Aleem S. Spectroscopic Investigations and DFT Studies of Synthesized 4- Acetamidophenyl 3,4,5-Trimethoxybenzoate and 4-acetyl phenyl 3,4,5- trimethoxybenzoate a Novel Conjugate of Gallic Acid. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200818205347] [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
Gallic acid is abundantly found in amla (Phyllanthus emblica), a deciduous of the family
phyllanthaceae. Gallic acid, the major constituent of the plant, was methylated to 3,4,5 trimethoxy
gallic acid, which then underwent steglich esterification first with paracetamol and then with
4-hydroxy acetophenone to yield 4-acetamidophenyl 3,4,5-trimethoxybenzoate and 4-acetyl phenyl
3,4,5-trimethoxybenzoate “respectively”. 1H NMR, 13C NMR, UV, FT-IR and mass spectroscopy
were used to characterize the synthesized compounds. Density functional theory (B3YLP) using a
6-31G (d,p) basis set has been used for quantum chemical calculations. AIM (Atom in a molecule)
approach depicted weak molecular interactions within the molecules, whereas the reactive site and reactivity
within the molecule were examined by global and local reactivity descriptors. The HOMO and
LUMO energies and frontier orbital energy gaps were calculated by time dependent DFT approach using
the IEFPCM model. A small value for the HOMO-LUMO energy gap indicated that easier charge
transfer occurs within compound 4. The nucleophilic and electrophilic reactivity was determined by
MEP (molecular electrostatic potential) experiment. Polarizability, dipole moment, and first hyperpolarizability
values were calculated to depict the NLO (nonlinear optical) property of both the synthesized
compounds. The antimicrobial activity was also carried out and broad-spectrum antibacterial activity
against several strains of bacteria and certain unicellular fungi were exhibited by synthesized
compound 3.
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Affiliation(s)
| | | | - Sadaf Aleem
- Department of Chemistry, University of Lucknow, Lucknow 226007,India
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Bryndal I, Lorenc J, Macalik L, Michalski J, Sąsiadek W, Lis T, Hanuza J. Crystal structure, vibrational and optic properties of 2-N-methylamino-3-methylpyridine N-oxide - Its X-ray and spectroscopic studies as well as DFT quantum chemical calculations. J Mol Struct 2019; 1195:208-219. [PMID: 32336784 PMCID: PMC7173143 DOI: 10.1016/j.molstruc.2019.05.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/27/2019] [Accepted: 05/17/2019] [Indexed: 01/10/2023]
Abstract
The crystal and molecular structure and physicochemical properties of 2-N-methylamino-3-methylpyridine N-oxide (MA3MPO) have been studied. MA3MPO was synthesized from 2-amino-3-methylpyridine by several steps to form colorless crystals suitable for crystallographic analysis. The data reveal that MA3MPO crystallizes in the monoclinic space group P21/n. The studied compound contains a nearly flat triply substituted pyridine skeleton whose structure is stabilized by an intramolecular N-H⋅⋅⋅O hydrogen bond. The N-oxide molecules are connected together by weak C-H⋯O hydrogen bonds, an acceptor of which is the oxygen atom from the N-oxide group. This leads to creation of two-dimensional network of hydrogen bonds. Its IR, Raman, UV-Vis and luminescence spectra have been measured and analyzed on the basis of DFT and NBO quantum chemical calculations in which the B3LYP/6-311++G(d,p) approach was applied. The distribution of the electron levels in the studied compound has been analyzed in terms of the possibility of its participation in the ligand-to-lanthanide ion energy transfer.
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Affiliation(s)
- I. Bryndal
- Department of Drugs Technology, Faculty of Pharmacy with Division of Laboratory Diagnostics, Wroclaw Medical University, Borowska 211A, 50-556, Wrocław, Poland
| | - J. Lorenc
- Department of Bioorganic Chemistry, Institute of Chemistry and Food Technology, Faculty of Engineering and Economics, Wrocław University of Economics, Komandorska 118/120, 53-345, Wrocław, Poland
| | - L. Macalik
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, Wrocław, Poland
| | - J. Michalski
- Department of Bioorganic Chemistry, Institute of Chemistry and Food Technology, Faculty of Engineering and Economics, Wrocław University of Economics, Komandorska 118/120, 53-345, Wrocław, Poland
| | - W. Sąsiadek
- Department of Bioorganic Chemistry, Institute of Chemistry and Food Technology, Faculty of Engineering and Economics, Wrocław University of Economics, Komandorska 118/120, 53-345, Wrocław, Poland
| | - T. Lis
- Faculty of Chemistry, University of Wroclaw, Joliot-Curie Street 14, 50-383, Wrocław, Poland
| | - J. Hanuza
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, Wrocław, Poland
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Masoud MS, Beltagi AM, Moutawa HA. Synthesis, spectral, molecular modeling, thermal analysis studies of orange (II) complexes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.07.094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Renuka CG, Nadaf YF, Sriprakash G, Rajendra Prasad S. Solvent Dependence on Structure and Electronic Properties of 7-(Diethylamino) - 2H -1- Benzopyran-2- one (C-466) Laser Dye. J Fluoresc 2018; 28:839-854. [PMID: 29909477 DOI: 10.1007/s10895-018-2249-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/07/2018] [Indexed: 02/03/2023]
Affiliation(s)
- C G Renuka
- Department of Physics, Bangalore University, Jnanabharathi Campus, Bengaluru, 560056, India
| | - Y F Nadaf
- Department of Physics and Research Center, Maharani Science College for Women, Bengaluru, 560001, India.
| | - G Sriprakash
- Department of Physics and Research Center, Maharani Science College for Women, Bengaluru, 560001, India
| | - S Rajendra Prasad
- Department of Chemistry, University of Mysore, Mysuru, 570005, India
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Synthesis and characterization of gallic acid derivatives and their utilized as organic photo-stabilizers for poly (vinyl chloride). JOURNAL OF POLYMER RESEARCH 2017. [DOI: 10.1007/s10965-017-1283-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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DFT study of structural and electronic properties of gallic acid and its anions in gas phase and in aqueous solution. Struct Chem 2017. [DOI: 10.1007/s11224-017-0958-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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1,3,4-Oxadiazole Derivatives. Optical Properties in Pure and Mixed Solvents. J Fluoresc 2016; 26:1617-35. [DOI: 10.1007/s10895-016-1848-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 05/30/2016] [Indexed: 01/23/2023]
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Martínez-Alonso A, Losada-Barreiro S, Bravo-Díaz C. Encapsulation and solubilization of the antioxidants gallic acid and ethyl, propyl and butyl gallate with β-cyclodextrin. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2014.12.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Masoud MS, Kamel HM, Ali AE. Solvation and equilibrium studies of some compounds containing azo and nitroso chromophores. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:1417-1425. [PMID: 25310263 DOI: 10.1016/j.saa.2014.09.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 06/22/2014] [Accepted: 09/11/2014] [Indexed: 06/04/2023]
Abstract
The stability studies of biologically active phenylazo-dinitroso resorsinol and o-hydroxy phenyl azo-dinitroso resorsinol compounds were studied. The dissociation constants and the thermodynamic parameters of dissociation were evaluated and determined potentiometrically. Regression analysis is applied for correlating the different parameters by using the SPSS program. The results help to assign the solute-solvent interactions and the solvatochromic potential of the investigated compounds.
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Affiliation(s)
- Mamdouh S Masoud
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Hesham M Kamel
- Medical Laboratory Technology Department, Faculty of Allied Medical Sciences, Pharos University, Alexandria, Egypt
| | - Alaa E Ali
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt
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Masoud MS, El-Shahat MF, Elkholany AS. Physicochemical studies of the reaction of (99m)Tc with 5,5'-diethyl barbituric acid, adenine, d-glucose and thiobarbituric acid at different temperatures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 127:216-224. [PMID: 24632174 DOI: 10.1016/j.saa.2014.02.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 02/08/2014] [Accepted: 02/14/2014] [Indexed: 06/03/2023]
Abstract
The reaction of (99m)Tc pertechnetate with 5,5'-diethyl barbituric acid, adenine, d-glucose and thiobarbituric acid at different temperatures was studied. The solvent effect on the electronic absorption spectra of the reactions was recorded. The reaction mixtures have been analyzed at different times using TLC and a radiodetctor to show the peaks at the plates. (99m)Tc pertechnetate is obtained from the Mo generators. It is difficult to separate the complexes in the solid state. The percentage of (99m)Tc involved in the complexes can be determined. Characterization of the (99m)Tc complexes as well as the determination of the extent of radiolabeling was done by thin layer chromatography using 0.9% NaCl solution as a solvent. The Rf value of (99m)TcO4(-) is (≈1). The solvatochromism for the reaction of (99m)Tc with d-glucose was mainly affected by solute permanent dipole-solvent permanent dipole interaction, the dipolar interaction for the reaction of (99m)Tc with of 5,5'-diethyl barbituric acid and for the reaction of (99m)Tc with adenine and thiobarbituric was solute-solvent hydrogen bonding.
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Affiliation(s)
- M S Masoud
- Faculty of Science, Chemistry Department, Alexandria University, Alexandria, Egypt
| | - M F El-Shahat
- Faculty of Science, Chemistry Department, Ain Shams University, Cairo, Egypt
| | - A S Elkholany
- Nuclear Medicine Department, The International Medical Center, Cairo, Egypt.
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Nawaz M, Hisaindee S, Graham J, Rauf M, Saleh N. Synthesis and spectroscopic properties of pyridones — Experimental and theoretical insight. J Mol Liq 2014. [DOI: 10.1016/j.molliq.2013.12.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pardeshi S, Dhodapkar R, Kumar A. Quantum chemical density functional theory studies on the molecular structure and vibrational spectra of Gallic acid imprinted polymers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 116:562-573. [PMID: 23978741 DOI: 10.1016/j.saa.2013.07.067] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 07/12/2013] [Accepted: 07/25/2013] [Indexed: 06/02/2023]
Abstract
Gallic acid (GA) is known by its antioxidant, anticarcinogenic properties and scavenger activity against several types of harmful free radicals. Molecularly imprinted polymers (MIPs) are used in separation of a pure compound from complex matrices. A stable template-monomer complex generates the MIPs with the highest affinity and selectivity for the template. The quantum chemical computations based on density functional theory (DFT) was used on the template Gallic acid (GA), monomer acrylic acid (AA) and GA-AA complex to study the nature of interactions involved in the GA-AA complex. B3LYP/6-31+G(2d,2p) model chemistry was used to optimize their structures and frequency calculations. The effect of porogen acetonitrile (ACN) on complex formation was included by using polarizable continuum model (PCM). The results demonstrated the formation of a stable GA-AA complex through the intermolecular hydrogen bonding between carboxylic acid groups of GA and AA. The Mulliken atomic charge analysis and simulated vibrational spectra also supported the stable hydrogen bonding interaction between the carboxylic acid groups of GA and AA with minimal interference of porogen ACN. Further, simulations on GA-AA mole ratio revealed that 1:4 GA-AA was optimum for synthesis of MIP for GA.
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Affiliation(s)
- Sushma Pardeshi
- Chemistry Department, Visvesvaraya National Institute of Technology, Nagpur 440010, India
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Graham J, Rauf M, Hisaindee S, Nawaz M. Experimental and theoretical study of the spectral behavior of Trypan Blue in various solvents. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.02.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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