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Joseph T, Varghese HT, Panicker CY, Viswanathan K, Dolezal M, Van Alsenoy C. Spectroscopic (FT-IR, FT-Raman), first order hyperpolarizability, NBO analysis, HOMO and LUMO analysis of N-[(4-(trifluoromethyl)phenyl]pyrazine-2-carboxamide by density functional methods. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Structural, physicochemical characterization, theoretical studies of carboxamides and their Cu(II), Zn(II) complexes having antibacterial activities against E. coli. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.09.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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da Silva PB, Bonifácio BV, Frem RCG, Godoy Netto AV, Mauro AE, Ferreira AMDC, Lopes EDO, Raddi MSG, Bauab TM, Pavan FR, Chorilli M. A Nanostructured Lipid System as a Strategy to Improve the in Vitro Antibacterial Activity of Copper(II) Complexes. Molecules 2015; 20:22534-45. [PMID: 26694337 PMCID: PMC6332266 DOI: 10.3390/molecules201219822] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 11/23/2015] [Accepted: 11/24/2015] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to construct a nanostructured lipid system as a strategy to improve the in vitro antibacterial activity of copper(II) complexes. New compounds with the general formulae [CuX2(INH)2]·nH2O (X = Cl− and n = 1 (1); X = NCS− and n = 5 (2); X = NCO− and n = 4 (3); INH = isoniazid, a drug widely used to treat tuberculosis) derived from the reaction between the copper(II) chloride and isoniazid in the presence or absence of pseudohalide ions (NCS− or NCO−) were synthesized and characterized by infrared spectrometry, electronic absorption spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, elemental analysis, melting points and complexometry with 2,2′,2′′,2′′′-(Ethane-1,2-diyldinitrilo)tetraacetic acid (EDTA). The characterization techniques allowed us to confirm the formation of the copper(II) complexes. The Cu(II) complexes were loaded into microemulsion (MEs) composed of 10% phase oil (cholesterol), 10% surfactant [soy oleate and Brij® 58 (1:2)] and 80% aqueous phase (phosphate buffer pH = 7.4) prepared by sonication. The Cu(II) complex-loaded MEs displayed sizes ranging from 158.0 ± 1.060 to 212.6 ± 1.539 nm, whereas the polydispersity index (PDI) ranged from 0.218 ± 0.007 to 0.284 ± 0.034. The antibacterial activity of the free compounds and those that were loaded into the MEs against Staphylococcus aureus ATCC® 25923 and Escherichia coli ATCC® 25922, as evaluated by a microdilution technique, and the cytotoxicity index (IC50) against the Vero cell line (ATCC® CCL-81TM) were used to calculate the selectivity index (SI). Among the free compounds, only compound 2 (MIC 500 μg/mL) showed activity for S. aureus. After loading the compounds into the MEs, the antibacterial activity of compounds 1, 2 and 3 was significantly increased against E. coli (MIC’s 125, 125 and 500 μg/mL, respectively) and S. aureus (MICs 250, 500 and 125 μg/mL, respectively). The loaded compounds were less toxic against the Vero cell line, especially compound 1 (IC50 from 109.5 to 319.3 μg/mL). The compound 2- and 3-loaded MEs displayed the best SI for E. coli and S. aureus, respectively. These results indicated that the Cu(II) complex-loaded MEs were considerably more selective than the free compounds, in some cases, up to 40 times higher.
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Affiliation(s)
- Patricia B da Silva
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Bruna V Bonifácio
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Regina C G Frem
- Chemistry Institute, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14800-060 São Paulo, Brazil.
| | - Adelino V Godoy Netto
- Chemistry Institute, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14800-060 São Paulo, Brazil.
| | - Antonio E Mauro
- Chemistry Institute, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14800-060 São Paulo, Brazil.
| | - Ana M da Costa Ferreira
- Chemistry Institute, USP-University São Paulo, Campus São Paulo, São Paulo, 05508-900 São Paulo, Brazil.
| | - Erica de O Lopes
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Maria S G Raddi
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Tais M Bauab
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Fernando R Pavan
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, UNESP-University Estadual Paulista, Campus Araraquara, Araraquara, 14801-902 São Paulo, Brazil.
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Chiniforoshan H, Radani ZS, Tabrizi L, Tavakol H, Sabzalian MR, Mohammadnezhad G, Görls H, Plass W. Pyrazinamide drug interacting with Co(III) and Zn(II) metal ions based on 2,2′-bipyridine and 1,10-phenanthroline ligands: Synthesis, studies and crystal structure, DFT calculations and antibacterial assays. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Balachandran V, Lalitha S, Rajeswari S, Rastogi VK. Theoretical investigations on the molecular structure, vibrational spectra, thermodynamics, HOMO-LUMO, NBO analyses and paramagnetic susceptibility properties of p-(p-hydroxyphenoxy)benzoic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:575-585. [PMID: 24291435 DOI: 10.1016/j.saa.2013.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/01/2013] [Accepted: 11/05/2013] [Indexed: 06/02/2023]
Abstract
The experimental FT-IR (4000-400 cm(-1)) and FT-Raman (3500-100 cm(-1)) spectra of p-(p-hydroxyphenoxy) benzoic acid have been recorded. Quantum chemical calculations of energies, geometries, and vibrational wavenumbers of p-(p-hydroxyphenoxy) benzoic acid (PPHPBA) are carried out using HF and DFT/B3LYP methods with 6-311G (d,p) basis set. The optimized geometrical parameters obtained by B3LYP method show a good agreement with experimental data. The difference between the observed and scaled wave number values of most of the fundamentals is very small. The complete assignments were performed on the basis of the potential energy distribution (PED) of the vibrational modes calculated with scaled quantum mechanical method. The calculated HOMO and LUMO energies allow the calculation of atomic and molecular properties and they also show that charge transfer occurs in the molecule. A detailed molecular picture of PPHPBA and its intermolecular interactions were obtained from NBO analysis. The temperature dependence of various thermodynamic parameters was also studied. The paramagnetic behavior of the molecule under consideration has been investigated and the variation of paramagnetic susceptibility with temperature has been studied.
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Affiliation(s)
- V Balachandran
- Centre for Research, Department of Physics, A A Government Arts College, Musiri 621 211, India.
| | - S Lalitha
- P.G. & Research Department of Physics, Periyar EVR College (Autonomous), Tiruchirappalli 620 023, India
| | - S Rajeswari
- P.G. & Research Department of Physics, Periyar EVR College (Autonomous), Tiruchirappalli 620 023, India
| | - V K Rastogi
- RD Foundation Group of Institutions, Kadrabad, Modinagar, Ghaziabad 201 204, India
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Li Y, Liu L, Jia D, Guo J, Sheng R. Synthesis, Crystal Structures and Fluorescent Properties of Two Bimetallic Coordination Polymers. J Inorg Organomet Polym Mater 2010. [DOI: 10.1007/s10904-010-9438-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gündüzalp AB, Erk B. Copper(II) and zinc(II) complexes of thiophene/furan carboxamides: Synthesis, structure and properties. RUSS J INORG CHEM+ 2010. [DOI: 10.1134/s0036023610070168] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Borba A, Albrecht M, Gómez-Zavaglia A, Suhm MA, Fausto R. Low Temperature Infrared Spectroscopy Study of Pyrazinamide: From the Isolated Monomer to the Stable Low Temperature Crystalline Phase. J Phys Chem A 2009; 114:151-61. [DOI: 10.1021/jp907466h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana Borba
- Department of Chemistry, University of Coimbra, Portugal, Institute for Physical Chemistry, University of Göttingen, Germany, and Centro de Investigación y Desarrollo en Criotecnología de Alimentos, (Conicet La Plata, UNLP) RA-1900, Argentina
| | - Merwe Albrecht
- Department of Chemistry, University of Coimbra, Portugal, Institute for Physical Chemistry, University of Göttingen, Germany, and Centro de Investigación y Desarrollo en Criotecnología de Alimentos, (Conicet La Plata, UNLP) RA-1900, Argentina
| | - Andrea Gómez-Zavaglia
- Department of Chemistry, University of Coimbra, Portugal, Institute for Physical Chemistry, University of Göttingen, Germany, and Centro de Investigación y Desarrollo en Criotecnología de Alimentos, (Conicet La Plata, UNLP) RA-1900, Argentina
| | - Martin A. Suhm
- Department of Chemistry, University of Coimbra, Portugal, Institute for Physical Chemistry, University of Göttingen, Germany, and Centro de Investigación y Desarrollo en Criotecnología de Alimentos, (Conicet La Plata, UNLP) RA-1900, Argentina
| | - Rui Fausto
- Department of Chemistry, University of Coimbra, Portugal, Institute for Physical Chemistry, University of Göttingen, Germany, and Centro de Investigación y Desarrollo en Criotecnología de Alimentos, (Conicet La Plata, UNLP) RA-1900, Argentina
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Nelson KJ, Miller JS. Incorporation of Substitutionally Labile [VIII(CN)6]3− into Prussian Blue Type Magnetic Materials. Inorg Chem 2008; 47:2526-33. [DOI: 10.1021/ic701845p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kendric J. Nelson
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112-0850
| | - Joel S. Miller
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112-0850
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Cozar O, Leopold N, Jelic C, Chiş V, David L, Mocanu A, Tomoaia-Cotişel M. IR, Raman and surface-enhanced Raman study of desferrioxamine B and its Fe(III) complex, ferrioxamine B. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.04.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chiş V, Pîrnaˇu A, Jurcaˇ T, Vasilescu M, Simon S, Cozar O, David L. Experimental and DFT study of pyrazinamide. Chem Phys 2005. [DOI: 10.1016/j.chemphys.2005.05.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chapter 6.2 Six-membered ring systems: Diazines and benzo derivatives. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0959-6380(05)80055-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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