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Kuranova NN, Gamov GA, Gushchina AS, Sharnin VA. Thermodynamics of the Complexation of Cu2+ with Nicotinamide and Nicotinate Ions in Aqueous Solutions of Ethanol. Russ J Phys Chem 2022. [DOI: 10.1134/s0036024422060139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Świderski G, Łaźny R, Sienkiewicz M, Kalinowska M, Świsłocka R, Acar AO, Golonko A, Matejczyk M, Lewandowski W. Synthesis, Spectroscopic, and Theoretical Study of Copper and Cobalt Complexes with Dacarbazine. Materials (Basel) 2021; 14:3274. [PMID: 34199318 DOI: 10.3390/ma14123274] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/11/2022]
Abstract
Dacarbazine (DAC) 5-(3,3-dimethyl-1-triazenyl)imidazole-4-carboxamide is an imidazole-carboxamide derivative that is structurally related to purines. DAC belongs to the triazene compounds, which are a group of alkylating agents with antitumor and mutagenic properties. DAC is a non-cell cycle specific drug, active in all phases of the cellular cycle. In the frame of this work the 3d metal complexes (cobalt and copper) with dacarbazine were synthesized. Their spectroscopic properties by the use of FT-IR, FT-Raman, and 1HNMR were studied. The structures of dacarbazine and its complexes with copper(II) and cobalt(II) were calculated using DFT methods. The effect of metals on the electronic charge distribution of dacarbazine was discussed on the basis of calculated NBO atomic charges. The reactivity of metal complexes in relation to ligand alone was estimated on the basis of calculated energy of HOMO and LUMO orbitals. The aromaticity of the imidazole ring in dacarbazine and the complexes were compared (on the basis of calculated geometric indices of aromaticity). Thermal stability of the investigated 3d-metal complexes with dacarbazine and the products of their thermal decomposition were analyzed.
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Mora Vargas JA, Ortega JO, Dos Santos MBC, Metzker G, Gomes E, Boscolo M. A new synthetic methodology for pyridinic sucrose esters and their antibacterial effects against Gram-positive and Gram-negative strains. Carbohydr Res 2020; 489:107957. [PMID: 32109775 DOI: 10.1016/j.carres.2020.107957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/04/2020] [Accepted: 02/18/2020] [Indexed: 02/06/2023]
Abstract
Described are the development of a new synthetic method using ultrasonic irradiation and sodium methoxide as catalyst for a series of pyridinic sucrose esters (py-SEs), derived from transesterification of sucrose with picolinic, nicotinic and isonicotinic methyl esters. The reaction was optimized using a 32 x 2 experimental design, the reaction time, temperature and sucrose: methyl ester molar ratio being evaluated. The method proved to be efficient for obtaining monosubstituted esters (≥83%) with high methyl ester consumption (≥79%). The monosubstituted py-SEs were isolated by semipreparative HPLC, characterized by high-resolution mass spectrometry, calorimetry, vibrational spectroscopy, and 1H and 13C NMR. The py-SEs were tested against E. coli, S. aureos, and P. aeruginosa bacteria with minimum inhibitory concentration values equal or inferior to the reference drugs for both E. coli and P. aeruginosa.
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Affiliation(s)
- Jorge Andrés Mora Vargas
- Sao Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, Sao Jose do Rio Preto, SP, Brazil.
| | - Julieth Orduña Ortega
- Sao Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, Sao Jose do Rio Preto, SP, Brazil; Universidad Santiago de Cali, Facultad de Ciencias Basicas, Campus Pampalinda, Santiago de Cali, Colombia.
| | | | - Gustavo Metzker
- Sao Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, Sao Jose do Rio Preto, SP, Brazil.
| | - Eleni Gomes
- Sao Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, Sao Jose do Rio Preto, SP, Brazil.
| | - Mauricio Boscolo
- Sao Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences, Sao Jose do Rio Preto, SP, Brazil.
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Świderski G, Kalinowska M, Wilczewska AZ, Malejko J, Lewandowski W. Lanthanide complexes with pyridinecarboxylic acids – Spectroscopic and thermal studies. Polyhedron 2018; 150:97-109. [DOI: 10.1016/j.poly.2018.04.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Zhao L, Yang Y, Deng X, Shi X. Synthesis, Characterization and Crystal Structure of Polymer [La3(MeBA)8(OH)(o-Phen)(H2O)]n Containing the Novel La6 Cluster Unit. J CLUST SCI 2017; 28:3115-26. [DOI: 10.1007/s10876-017-1277-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Jabłońska-Trypuć A, Świderski G, Krętowski R, Lewandowski W. Newly Synthesized Doxorubicin Complexes with Selected Metals-Synthesis, Structure and Anti-Breast Cancer Activity. Molecules 2017; 22:molecules22071106. [PMID: 28677642 PMCID: PMC6152354 DOI: 10.3390/molecules22071106] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/30/2017] [Accepted: 07/01/2017] [Indexed: 12/31/2022] Open
Abstract
Doxorubicin (DOX) is very effective chemotherapeutic agent, however it has several major drawbacks. Therefore the motivation for developing novel drug complexes as anticancer agents with different mechanism of action has arisen. The aim of the present study was to evaluate the influence of newly synthesized DOX complexes with selected metals (Mg, Mn, Co, Ni, Fe, Cu, Zn) on apoptosis, cell cycle, viability, proliferation and cytotoxicity in the breast cancer cell line MCF-7. Complexation of DOX with metals has likewise been the subject of our research. The current work showed that the tested bivalent metals at a given pH condition formed metal:DOX complexes in a ratio of 2:1, while iron complexes with DOX in a ratio of 3:1. The studies also showed that selected metal-DOX complexes (Mg-DOX, Mn-DOX, Ni-DOX) at 0.5 µM concentration significantly decreased cell viability and proliferation, however they increased caspase 7 activity. Results also indicated that studied metal-DOX complexes showed high cytotoxicity in MCF-7 cells. Therefore they were chosen for cell cycle check-points and apoptosis/necrosis analysis studied by flow cytometry. Obtained results suggest that doxorubicin complexed by specified metals can be considered as a potential anti-breast cancer agent, which is characterized by a higher efficacy than a parent drug.
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Affiliation(s)
- Agata Jabłońska-Trypuć
- Division of Sanitary Biology and Biotechnology, Faculty of Civil Engineering and Environmental Engineering, Białystok University of Technology, Wiejska 45E Street, Białystok 15-351, Poland.
| | - Grzegorz Świderski
- Division of Chemistry, Bialystok University of Technology, Białystok 15-351, Poland.
| | - Rafał Krętowski
- Department of Pharmaceutical Biochemistry, Medical University of Białystok, Białystok 15-222, Poland.
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Karabacak M, Calisir Z, Kurt M, Kose E, Atac A. The spectroscopic (FT-IR, FT-Raman, dispersive Raman and NMR) study of ethyl-6-chloronicotinate molecule by combined density functional theory. Spectrochim Acta A Mol Biomol Spectrosc 2016; 153:754-770. [PMID: 26483317 DOI: 10.1016/j.saa.2015.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 09/03/2015] [Accepted: 09/10/2015] [Indexed: 06/05/2023]
Abstract
In this study, ethyl-6-chloronicotinate (E-6-ClN) molecule is recorded in the region 4000-400 cm(-1) and 3500-100 cm(-1) (FT-IR, FT-Raman and dispersive Raman, respectively) in the solid phase. ((1))H and ((13))C nuclear magnetic resonance (NMR) spectra are recorded in DMSO solution. The structural and spectroscopic data of the molecule are obtained for two possible isomers (S1 and S2) from DFT (B3LYP) with 6-311++G(d,p) basis set calculations. The geometry of the molecule is fully optimized, vibrational spectra are calculated and fundamental vibrations are assigned on the basis of the potential energy distribution (PED) of the vibrational modes. ((1))H and ((13))C NMR chemical shifts are calculated by using the gauge-invariant atomic orbital (GIAO) method. The electronic properties, such as excitation energies, oscillator strengths, wavelengths, HOMO and LUMO energies, are performed by time-dependent density functional theory (TD-DFT). Total and partial density of state and overlap population density of state diagrams analysis are presented for E-6-ClN molecule. Furthermore, frontier molecular orbitals (FMO), molecular electrostatic potential, and thermodynamic features are performed. In addition to these, reduced density gradient of the molecule is performed and discussed. As a conclusion, the calculated results are compared with the experimental spectra of the title compound. The results of the calculations are applied to simulate the vibrational spectra of the molecule, which show excellent agreement with the observed ones. The theoretical and tentative results will give us a detailed description of the structural and physicochemical properties of the molecule. Natural bond orbital analysis is done to have more information stability of the molecule arising from charge delocalization, and to reveal the information regarding charge transfer within the molecules.
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Affiliation(s)
- Mehmet Karabacak
- Department of Mechatronics Engineering, H.F.T. Technology Faculty, Celal Bayar University, Turgutlu, Manisa, Turkey
| | - Zuhre Calisir
- Department of Physics, Ahi Evran University, Kırsehir, Turkey
| | - Mustafa Kurt
- Department of Physics, Ahi Evran University, Kırsehir, Turkey
| | - Etem Kose
- Department of Physics, Celal Bayar University, Manisa, Turkey
| | - Ahmet Atac
- Department of Physics, Celal Bayar University, Manisa, Turkey
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Almáši M, Vargová Z, Sabolová D, Kudláčová J, Hudecová D, Kuchár J, Očenášová L, Györyová K. Ag(I) and Zn(II) isonicotinate complexes: design, characterization, antimicrobial effect, and CT-DNA binding studies. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1101074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- M. Almáši
- Faculty of Science, Department of Inorganic Chemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - Z. Vargová
- Faculty of Science, Department of Inorganic Chemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - D. Sabolová
- Faculty of Science, Deparment of Biochemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - J. Kudláčová
- Faculty of Science, Deparment of Biochemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - D. Hudecová
- Department of Biochemistry and Microbiology, Slovak University of Technology, Bratislava, Slovak Republic
| | - J. Kuchár
- Faculty of Science, Department of Inorganic Chemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - L. Očenášová
- Faculty of Science, Department of Organic Chemistry, P.J. Šafárik University, Košice, Slovak Republic
| | - K. Györyová
- Faculty of Science, Department of Inorganic Chemistry, P.J. Šafárik University, Košice, Slovak Republic
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Świderski G, Kalinowska M, Wojtulewski S, Lewandowski W. The experimental and theoretical study on the influence of alkali metals on the electronic charge distribution in five-membered aromatic acids (2-thiophenecarboxylic, 2-furanecarboxylic and 2-pyrrolecarboxylic acids). Polyhedron 2015. [DOI: 10.1016/j.poly.2015.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhao LY, Chai XC, Chen YP. Structure, Luminescence, and Two-Dimensional Correlation Infrared Spectroscopy of Two Sm/3-Methylbenzoic Acid Complexes. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/15533174.2013.778882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ling-Yan Zhao
- a Qian’an College , Hebei United University , Qian’an , Hebei , P. R. China
| | - Xiao-Chuan Chai
- b Department of Applied Chemistry , Yuncheng University , Yuncheng , Shanxi , P. R. China
| | - Yi-Ping Chen
- c Department of Chemistry , Fuzhou University , Fuzhou , Fujian , P. R. China
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El-Metwally NM. Spectral and Biological Investigation for Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) Complexes With Optically Active Compound. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/15533174.2013.776601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Nashwa M. El-Metwally
- a Department of Chemistry, Faculty of Science , Mansoura University , Egypt
- b Department of Chemistry, Faculty of Science of girls, Abha , King Khalid University , Saudi Arabia
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Świsłocka R. Experimental (FT-IR, FT-Raman, 1H, 13C NMR) and theoretical study of alkali metal syringates. Spectrochim Acta A Mol Biomol Spectrosc 2013; 111:290-298. [PMID: 23664591 DOI: 10.1016/j.saa.2013.04.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 03/27/2013] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
In this work the influence of lithium, sodium, potassium, rubidium and cesium on the electronic system of the syringic acid (4-hydroxy-3,5-dimethoxybenzoic acid) was studied. This paper presents spectroscopic vibrations (FT-IR, FT-Raman) and NMR ((1)H and (13)C) study of the series of alkali metal syringates from lithium to cesium syringates. Characteristic shifts of band wavenumbers and changes in band intensities along the metal series were observed. Optimized geometrical structures of the studied compounds were calculated by the B3LYP method using the 6-311++G(**) basis set. Aromaticity indices, atomic charges, dipole moments and energies were also calculated. The theoretical wavenumbers and intensities of IR and NMR spectra were obtained. The calculated parameters were compared to experimental characteristics of studied compounds.
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Affiliation(s)
- Renata Świsłocka
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland.
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Zhao L, Chen Y, Chai X, Cui G, Ren L, Yang Y, Zhang H, Deng XC. Study of the tunable structure and two-dimension correlation infrared spectroscopy of Gd/3-methylbenzoic acid with o-phenanthroline, 2,2′-and 4,4′-bipyridines. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Serezhkina LB, Peresypkina EV, Novikov SA, Virovets AV, Serezhkin VN. Synthesis and crystal structure of [UO2CrO4(C5NH5COO)] · 0.25H2O. RUSS J INORG CHEM+ 2012. [DOI: 10.1134/s0036023612110125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Świderski G, Wojtulewski S, Kalinowska M, Świsłocka R, Lewandowski W. Effect of alkali metal ions on the pyrrole and pyridine π-electron systems in pyrrole-2-carboxylate and pyridine-2-carboxylate molecules: FT-IR, FT-Raman, NMR and theoretical studies. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Damodiran M, Sivakumar PM, Senthilkumar R, Muralidharan D, Phani Kumar BVN, Doble M, Perumal PT. Antibacterial activity, quantitative structure-activity relationship and diastereoselective synthesis of isoxazolidine derivatives via 1,3-dipolar cycloaddition of d-glucose derived nitrone with olefin. Chem Biol Drug Des 2009; 74:494-506. [PMID: 19793183 DOI: 10.1111/j.1747-0285.2009.00887.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diastereoselectivity of the intermolecular 1,3-dipolar cycloaddition reaction of d-glucose-derived nitrones with both cyclic and acyclic dipolarophiles were studied. The reaction of nitrone with acyclic dipolarophiles resulted in the formation of the endo adduct exclusively whereas with cyclic dipolarophiles endo adduct was obtained as the major product. Antibacterial activity was evaluated for these eighteen isoxazolidine derivatives against Staphylococcus aureus NCIM5021, Escherichia coli NCIM 2931 and Pseudomonas aeruginosa NCIM 5029 by twofold dilution technique using resazurin as the indicator dye. Quantitative structureactivity relationships were developed with fourteen and the model was validated with four data. Electronic and spatial descriptors were the major contributors in all the three quantitative structureactivity relationship equations and the statistical parameters r(2), r(2)(adj) , F-ratio and q(2) were found to be satisfactory.
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Chai X, Zhang H, Zhang S, Cao Y, Chen Y. The tunable coordination architectures of a flexible multicarboxylate N-(4-carboxyphenyl)iminodiacetic acid via different metal ions, pH values and auxiliary ligand. J SOLID STATE CHEM 2009. [DOI: 10.1016/j.jssc.2009.05.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Three benzoic acid derivatives (zinc p-iodobenzoate, zinc p-hydroxybenzoate, and zinc p-aminobenzoate) were synthesized and tested chemically and microbiologically in order to explain their mode of action against the yeast Pichia anomala. The yeast strains were cultivated in batch culture of chemically defined minimal medium (control) and with the addition of the studied compound at concentrations of 0.103 to 0.166% (wt/vol). The growth of microorganisms, H+ concentration, and the concentrations of both dissociated and undissociated forms of the appropriate weak acid in the medium were monitored at 1-h intervals during 24 h of incubation. The inhibitory effect of each compound on the growth of microorganisms was calculated based on measurement of optical density at 600 nm turbidity. The K parameter, defined as the ratio of the concentration of undissociated weak acid to the number of microorganisms in the medium, was determined. The K value is related to the degree of growth inhibition and provides new insight into the mode of action of weak organic acids against the studied yeasts. The buffering capacity of the chemicals studied was also found to be an inhibition parameter associated with microbial growth. Greater buffer capacity of a given compound reduced changes in the pH value of the medium, resulting in changes to antimicrobial effectiveness.
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Affiliation(s)
- P Koczoń
- Warsaw University of Life Sciences, Faculty of Food Sciences, Food Chemistry Department, ul. Nowoursynowska 159 C, 02-787 Warsaw, Poland.
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Borawska M, Koczoń P, Piekut J, Świsłocka R, Lewandowski W. Vibrational spectra and antimicrobial activity of selected bivalent cation benzoates. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2008.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kalinowska M, Swisłocka R, Borawska M, Piekut J, Lewandowski W. Spectroscopic (FT-IR, FT-Raman, UV) and microbiological studies of di-substituted benzoates of alkali metals. Spectrochim Acta A Mol Biomol Spectrosc 2008; 70:126-35. [PMID: 17890143 DOI: 10.1016/j.saa.2007.07.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 07/11/2007] [Accepted: 07/15/2007] [Indexed: 05/17/2023]
Abstract
The FT-IR, FT-Raman and UV spectra of 3,5-dihydroxybenzoic and 3,5-dichlorobenzoic acids as well as lithium, sodium, potassium, rubidium, caesium 3,5-dihydroxy- and 3,5-dichlorobenzoates were recorded, assigned and compared. The theoretical geometries, Mulliken atomic charges, IR wavenumbers were obtained in B3LYP/6-311++G** level. On the basis of the gathered experimental and theoretical data the effect of metals and substituents on the electronic system of studied compounds were investigated. Moreover, the antimicrobiological activity of studied compounds against two species of bacteria: Bacillus subtilis, Staphylococus aureus and one species of yeast: Candida albicans were studied after 24 and 48 h of incubation. The attempt was made, to find out whether there is any correlation between the first principal component and the degree of growth inhibition exhibited by studied compounds in relation to selected microorganisms.
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Affiliation(s)
- M Kalinowska
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland
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Zhang S, Cao Y, Zhang H, Chai X, Chen Y. Hydrothermal synthesis of two copper helical coordination polymers with acentric three-dimensional framework constructing from mixed pyridine carboxylates. J SOLID STATE CHEM 2008. [DOI: 10.1016/j.jssc.2007.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kalinowska M, Borawska M, Świsłocka R, Piekut J, Lewandowski W. Spectroscopic (IR, Raman, UV, 1H and 13C NMR) and microbiological studies of Fe(III), Ni(II), Cu(II), Zn(II) and Ag(I) picolinates. J Mol Struct 2007; 834-836:419-25. [DOI: 10.1016/j.molstruc.2006.11.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zelenák V, Vargová Z, Györyová K. Correlation of infrared spectra of zinc(II) carboxylates with their structures. Spectrochim Acta A Mol Biomol Spectrosc 2007; 66:262-72. [PMID: 16829167 DOI: 10.1016/j.saa.2006.02.050] [Citation(s) in RCA: 234] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2005] [Revised: 02/22/2006] [Accepted: 02/22/2006] [Indexed: 05/10/2023]
Abstract
The correlation of the infrared spectra of zinc(II) carboxylates with their structures was investigated in the paper. The complexes with different modes of the carboxylate binding, from chelating, through bridging (syn-syn, syn-anti, monatomic), ionic to monodentate were used for the study, namely [Zn(C6H5CHCHCOO)2(H2O)2] (I) with chelating carboxylate group (C6H5CHCHCOO=cinnamate), [Zn2(C6H5COO)4(pap)2] (II) with syn-syn bridging carboxylate (C6H5COO=benzoate; pap=papaverine), [Zn(C6H5CHCHCOO)2(mpcm)]n (III) with syn-anti carboxylate bridge (mpcm=methyl-3-pyridylcarbamate), [Zn(C5H4NCOO)2(H2O)4] (IV) with ionic carboxylate group (C5H4NCOO=nicotinate), [Zn(C6H5COO)2(pcb)2]n (V) with monodentate carboxylate coordination (pcb=3-pyridylcarbinol) and [Zn3(C6H5COO)6(nia)2] (VI) with syn-syn and monatomic carboxylate bridges (nia=nicotinamide). First, the mode of the carboxylate binding was assigned from the infrared spectra using the magnitude of the separation between the carboxylate stretches, Deltaexp=nuas(COO-)-nus(COO-). Then the values Deltaexp were compared with those calculated from structural data of the carboxylate anion (Deltacalc). The conclusions about the carboxylate binding which resulted from the Delta values, were confronted with the crystal structure of the complexes. The limitations and recommendations were formulated to assign the mode of the carboxylate binding from the infrared spectra. The dependence of the Deltaexp values on the magnitudes of Zn-O-C angles in bidentate carboxylate coordination was observed.
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Affiliation(s)
- V Zelenák
- Department of Inorganic Chemistry, Faculty of Science, P.J. Safárik University, Moyzesova 11, 041 54 Kosice, Slovak Republic.
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Swiderski G, Kalinowska M, Wojtulewski S, Lewandowski W. Experimental (FT-IR, FT-Raman, 1H NMR) and theoretical study of magnesium, calcium, strontium, and barium picolinates. Spectrochim Acta A Mol Biomol Spectrosc 2006; 64:24-33. [PMID: 16098790 DOI: 10.1016/j.saa.2005.06.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 06/17/2005] [Accepted: 06/21/2005] [Indexed: 05/04/2023]
Abstract
The experimental IR, Raman, and 1H NMR spectra of picolinic acid, as well as magnesium, calcium, strontium, and barium picolinates were registered, assigned and studied. Characteristic changes in the spectra of metal picolinates in comparison with the spectrum of ligand were observed, which lead to the conclusion that perturbation of the aromatic system of picolinates increases along with the series Mg-->Ca-->Sr-->Ba. Theoretical structures of beryllium and magnesium picolinates, as well as theoretical IR spectrum of magnesium picolinate were calculated in B3PW91/6-311++G(d, p) level. On the basis of calculated bond lengths in pyridine ring geometric, aromaticity indexes HOMA were calculated. The idea of these indexes is based on the fact that the essential factor in aromatic stabilization is the pi delocalization manifested in: planar geometry, equalization of the bond lengths and angles, and symmetry. The decidedly lower value of HOMA for magnesium picolinate (i.e. 0.545; 0.539) than that for beryllium picolinate (i.e. 0.998; 0.998) indicate higher aromatic properties of Be picolinate than of Mg picolinate. The comparison of theoretical and literature experimental structures of magnesium picolinate was done. The experimental structure contains two water molecules, so the calculations for hydrated magnesium picolinate were carried on, and the influence of coordinated water molecule on the structure of picolinates was discussed. The HOMAs for hydrated experimental and calculated Mg picolinate amount to 0.870; 0.743, and 0.900; 0.890, respectively, whereas for anhydrous structure, it is as described above, i.e. 0.545; 0.539. Thus, the calculations clearly showed that water molecules coordinated to the central atom weakens the effect of metal on the electronic system of ligand.
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Affiliation(s)
- G Swiderski
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland
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Koczoń P, Piekut J, Borawska M, Swisłocka R, Lewandowski W. Vibrational and microbiological study on alkaline metal picolinates and o-iodobenzoates. Anal Bioanal Chem 2005; 384:302-8. [PMID: 16328244 DOI: 10.1007/s00216-005-0158-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Revised: 10/04/2005] [Accepted: 10/04/2005] [Indexed: 10/25/2022]
Abstract
FT-IR and Raman experimental data were assigned to appropriate bond vibrations and used to compare the different electronic charge distributions in the aromatic rings and carboxylic anions of various lithium, sodium, potassium, rubidium and caesium o-iodobenzoates and picolinates. Then principal component analysis (PCA) was applied in order to attempt to distinguish the biological activities of these compounds according to selected band wavenumbers. The growth of the bacteria Escherichia coli and Bacillus subtilis and the yeasts Saccharomyces cerevisiae and Hansenula anomala under optimal growth conditions were measured after 24 hours of incubation by the classical plate method. The influence of the picolinates and o-iodobenzoates on the growth of these microorganisms, again after 24 hours of incubation, was also measured and compared to the effect of sodium benzoate, which was used as a reference material. In general, the o-iodobenzoates exhibited more activity against the microorganisms than the picolinates. A statistically significant linear correlation between the spectral data and the degree of influence of a given compound on microorganism growth was established. The correlation coefficients for the o-iodobenzoates were 0.696, -0.628, 0.693 and 0.755 for E. coli, B. subtilis, H. anomala and S. cerevisiae, respectively, and for the picolinates they were 0.818, 0.826, 0.821 and 0.877 for E. coli, B. subtilis, H. anomala and S. cerevisiae, respectively. Therefore, IR spectroscopy is shown to be a rapid and reliable analytical tool for preliminary estimation of the antimicrobial properties of newly synthesized compounds, that can be applied before microbial performance tests.
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Affiliation(s)
- P Koczoń
- Department of Chemistry, Warsaw Agricultural University, ul. Nowoursynowska 161C, 02-728, Warsaw, Poland.
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Lewandowski W, Kalinowska M, Lewandowska H. The influence of metals on the electronic system of biologically important ligands. Spectroscopic study of benzoates, salicylates, nicotinates and isoorotates. Review. J Inorg Biochem 2005; 99:1407-23. [PMID: 15927261 DOI: 10.1016/j.jinorgbio.2005.04.010] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2004] [Revised: 04/12/2005] [Accepted: 04/14/2005] [Indexed: 01/04/2023]
Abstract
This paper reviews the results of the intense experimental and theoretical studies on the influence of selected metals on the electronic system of biologically important molecules such as benzoic, 2-hydroxybenzoic and 3-pyridine carboxylic acids as well as 5-carboxyuracil. The research involved following techniques: infrared (FT-IR), Raman (FT-Raman), FT-IR Ar matrix, electronic absorption spectroscopy (UV/visible), nuclear magnetic resonance ((1)H, (13)C, (15)N, (17)O NMR), X-ray and quantum mechanical calculations. The influence of metals on the electronic system was examined through comparison of the changes in so called "logical series". The exemplary series are: Li-->Na-->K-->Rb-->Cs, Na(I)-->Ca(II)-->La(III)-->Th(IV); Na(I)-->Mg(II)-->Al(III) or long series of La(III) and fourteen lanthanides La(III)-->Ce(III)-->Lu(III). The correlation between the perturbation of the electronic system of ligands and the position of metals in the periodic table was found. The influence of the carboxylic anion structure and the effect of hydration on the perturbation of the electronic system of molecule were also discussed. The partial explanation in what way metals disturb and stabilize electronic system of studied ligands was done. It is necessary to carry out the physico-chemical studies of benzoates, salicylates, 3-pyridine carboxylates and isoorotates in order to understand the nature of the interactions of these compounds with their biological targets (e.g., receptors in the cell or important cell components). The results of this study make possible to predict some properties of a molecule, such as its reactivity, durability of complex compounds, and kinship to enzymes.
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Affiliation(s)
- W Lewandowski
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland.
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Regulska E, Samsonowicz M, Świsłocka R, Lewandowski W. Vibrational and NMR spectra of alkali metal salts of 3-amino-, 3-hydroxy- and 3-halogenobenzoic acids. J Mol Struct 2005; 744-747:353-61. [DOI: 10.1016/j.molstruc.2004.11.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Koczoń P, Piekut J, Borawska M, Swisłocka R, Lewandowski W. The relationship between chemical structure and antimicrobial activity of selected nicotinates, p-iodobenzoates, picolinates and isonicotinates. Spectrochim Acta A Mol Biomol Spectrosc 2005; 61:1917-1922. [PMID: 15863066 DOI: 10.1016/j.saa.2004.07.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2004] [Accepted: 07/28/2004] [Indexed: 05/24/2023]
Abstract
Alkaline metal, calcium and magnesium p-iodobenzoates and alkaline metal nicotinates, as well as sodium and potassium picolinic and isonicotinates were investigated by means of their antimicrobial and chemical properties. The quality estimation of the influence of metal cation coordinated to the carboxylic anion of the series of studied compounds on their antimicrobial activity as well as on the vibrational structure of whole complex in water solution was done. The changes in antimicrobial properties and in charge distribution of the complex along the position of nitrogen atom in the aromatic ring in sodium and potassium complexes were investigated. The analysis of influence of iodine substituent in para position on the change of electronic charge distribution of carboxylate anion and aromatic ring was done. The relationship between electronic properties estimated by vibrational spectroscopy and antimicrobial activity of studied complexes was investigated.
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Affiliation(s)
- P Koczoń
- Department of Chemistry, Warsaw Agricultural University, ul. Nowoursynowska 161C, 02728 Warsaw, Poland.
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Lewandowski W, Kalinowska M, Lewandowska H. The influence of halogens on the electronic system of biologically important ligands: spectroscopic study of halogenobenzoic acids, halogenobenzoates and 5-halogenouracils. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.10.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cappitelli F, Vicini S, Piaggio P, Abbruscato P, Princi E, Casadevall A, Nosanchuk JD, Zanardini E. Investigation of Fungal Deterioration of Synthetic Paint Binders Using Vibrational Spectroscopic Techniques. Macromol Biosci 2005; 5:49-57. [PMID: 15635715 DOI: 10.1002/mabi.200400134] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The deterioration of synthetic polymers caused by biological process is usually evaluated by visual inspection and measuring physical effects. In contrast to this approach, we have applied vibrational spectroscopies to study the biodegradation of the synthetic resins. 29 synthetic resins used as paint binding media, including acrylic, alkyd and poly(vinyl acetate) polymers, were examined for potential susceptibility to fungal degradation using the standard method ASTM G21-96(2002). In addition, the degraded resins were analysed by Raman spectroscopy, FT-IR and FT-IR photoacoustic spectroscopy. Almost all the acrylic resins studied proved to be resistant to microbial attack, while all alkyd resins and some poly(vinyl acetates) turned out to be biodegradable. Within a few days of inoculation Aspergillus niger was the most copious fungus on the biodegraded resins. A comparison of the IR and Raman spectra of control and biodegraded resins did not show any differences, but photoacoustic spectroscopy revealed additional bands for the fungal-degraded resins, consistent with the presence of fungal-derived substances. The additional bands in the photoacoustic spectra were due to the presence of Aspergillus niger and melanin, a fungal pigment. Since IR photoacoustic spectroscopy can be also a suitable technique for the chemical characterisation of binding media, the same spectroscopic analysis can be employed to both characterise the material and obtain evidence for fungal colonization. Microbial growth on Sobral 1241ML (alkyd resin) after 28 d (growth rating 4) compared with the non-inoculated resin.
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Affiliation(s)
- Francesca Cappitelli
- Department of Food Science and Microbiology, Agricultural Faculty, University of Milan, Via Celoria 2, 20133 Milan, Italy.
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Lewandowski W, Świderski G, Świslocka R, Wojtulewski S, Koczoń P. Spectroscopic (Raman, FT-IR and NMR) and theoretical study of alkali metal picolinates. J PHYS ORG CHEM 2005. [DOI: 10.1002/poc.918] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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