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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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Świderski G, Wojtulewski S, Kalinowska M, Świsłocka R, Wilczewska AZ, Pietryczuk A, Cudowski A, Lewandowski W. The influence of selected transition metal ions on the structure, thermal and microbiological properties of pyrazine-2-carboxylic acid. Polyhedron 2020; 175:114173. [DOI: 10.1016/j.poly.2019.114173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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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Gocen T, Haman Bayarı S, Haluk Guven M. Linoleic acid and its potassium and sodium salts: A combined experimental and theoretical study. J Mol Struct 2017; 1150:68-81. [DOI: 10.1016/j.molstruc.2017.08.065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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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Lewandowska H, Kalinowska M, Lewandowski W, Stępkowski TM, Brzóska K. The role of natural polyphenols in cell signaling and cytoprotection against cancer development. J Nutr Biochem 2016; 32:1-19. [PMID: 27142731 DOI: 10.1016/j.jnutbio.2015.11.006] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/13/2015] [Accepted: 11/09/2015] [Indexed: 12/20/2022]
Abstract
The cytoprotective and anticancer action of dietary in-taken natural polyphenols has for long been attributed only to their direct radical scavenging activities. Currently it is well supported that those compounds display a broad spectrum of biological and pharmacological outcomes mediated by their complex metabolism, interaction with gut microbiota as well as direct interactions of their metabolites with key cellular signaling proteins. The beneficial effects of natural polyphenols and their synthetic derivatives are extensively studied in context of cancer prophylaxis and therapy. Herein we focus on cell signaling to explain the beneficial role of polyphenols at the three stages of cancer development: we review the recent proceedings about the impact of polyphenols on the cytoprotective antioxidant response and their proapoptotic action at the premalignant stage, and finally we present data showing how phenolic acids (e.g., caffeic, chlorogenic acids) and flavonols (e.g., quercetin) hamper the development of metastatic cancer.
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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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Ramalingam S, Karabacak M, Periandy S, Puviarasan N. Spectroscopic analysis (FT-IR/FT-Raman) and molecular structure investigation on m-fluoronitrobenzene using hybrid computational calculations. Spectrochim Acta A Mol Biomol Spectrosc 2012; 94:318-330. [PMID: 22534557 DOI: 10.1016/j.saa.2012.03.042] [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: 01/20/2012] [Revised: 03/04/2012] [Accepted: 03/10/2012] [Indexed: 05/31/2023]
Abstract
In the present investigation, the FT-IR/FT-Raman spectra of the m-fluoronitrobenzene (m-FNBZ) are recorded. The fundamental frequencies are assigned and the computational calculations are performed by DFT (B3LYP, B3PW91 and MPW1PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results are tabulated. The computed values of frequencies are scaled by using suitable factors. The distortion of the structure of the compound due to the substitutions of Fl and NO(2) is investigated. The alternation of the vibrational pattern of the pedestal molecule related to the substitutions is analyzed. A study on the electronic properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies, are performed by time dependent DFT (TD-DFT) approach. The electronic structure and the assignment of the absorption bands in the electronic spectra of steady compounds are discussed. The calculated HOMO and LUMO energies show that charge transfer occurs within the molecule. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. Mulliken charges of the m-FNBZ molecule was also calculated and interpreted. The thermodynamic properties (heat capacity, entropy, and enthalpy) of the title compound at different temperatures were calculated in gas phase.
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Affiliation(s)
- S Ramalingam
- Department of Physics, A.V.C. College, Mayiladuthurai, Tamilnadu, India.
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Udayakumar V, Periandy S, Karabacak M, Ramalingam S. Experimental (FT-IR, FT-Raman) and theoretical (HF and DFT) investigation and HOMO and LUMO analysis on the structure of p-fluoronitrobenzene. Spectrochim Acta A Mol Biomol Spectrosc 2011; 83:575-586. [PMID: 21955946 DOI: 10.1016/j.saa.2011.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 08/19/2011] [Accepted: 09/01/2011] [Indexed: 05/31/2023]
Abstract
FT-IR and FT-Raman spectra of p-fluoronitrobenzene (FNO(2)C(6)H(4)) have been recorded in the region 4000-100 cm(-1). In this work, the experimental and theoretical spectra of p-fluoronitrobenzene (p-FNBz) are studied. The molecular geometry and vibrational frequencies are calculated in the ground state of molecule using ab initio Hartree-Fock (HF) and DFT (B3LYP and LSDA) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets. The computed values of frequencies are scaled to yield good coherence with observed values by using suitable factor. The complete assignments are performed on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method. The observed and calculated frequencies are found to be in very good agreement. The alteration of vibration bands due to the substitutions at the first and fourth position of the skeletal ring is also investigated from their characteristic region of linked spectrum. A study on the electronic properties, such as absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies, are performed by time dependent DFT (TD-DFT) approach. The electronic structure and the assignment of the absorption bands in the electronic spectra of steady compounds are discussed. The calculated HOMO and LUMO energies show that charge transfer occurs within the molecule. The thermodynamic properties of the title compound at different temperatures have been calculated in gas phase, revealing the correlations between standard heat capacities (C) standard entropies (S), standard enthalpy changes (H) and temperatures.
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Affiliation(s)
- V Udayakumar
- Department of Physics, Thiru A. Govindaswamy Arts College, Tindivanam, Tamilnadu, India
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Li MC, Bao DD, Ma CA. Studies on electrochemical hydrodebromination mechanism of 2,5-dibromobenzoic acid on Ag electrode by in situ FTIR spectroscopy. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.01.115] [Citation(s) in RCA: 9] [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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Regulska E, Świsłocka R, Lewandowski W. Theoretical and experimental study of alkali metal o-amino-, o-halogeno-, o-hydroxy-, o-methoxy- and o-nitrobenzoates. J Mol Struct 2010; 984:194-203. [DOI: 10.1016/j.molstruc.2010.09.027] [Citation(s) in RCA: 2] [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: 11/21/2022]
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Mukherjee V, Singh NP, Yadav RA. FTIR and Raman spectra and optimized geometry of 2,3,6-tri-fluorobenzoic acid dimer: a DFT and SQMFF study. Spectrochim Acta A Mol Biomol Spectrosc 2010; 77:787-794. [PMID: 20829100 DOI: 10.1016/j.saa.2010.08.005] [Citation(s) in RCA: 5] [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: 02/24/2010] [Revised: 07/17/2010] [Accepted: 08/03/2010] [Indexed: 05/29/2023]
Abstract
Raman and FTIR spectra of the 2,3,6-tri-fluorobenzoic acid molecule have been recorded in the regions 50-4000cm⁻¹ and 400-4000cm⁻¹, respectively. Vibrational frequencies have been calculated by employing DFT method in dimeric form in optimum state. SQM force field has also been used to calculate potential energy distributions in order to make conspicuous vibrational assignments. Raman activities calculated by DFT method have been converted to the corresponding Raman intensities using Raman scattering theory. Optimized bond lengths and angles of the title molecule have been interpreted and compared with the earlier reported experimental values for benzoic acid and some mono and di-fluorinated benzoic acids. Some of the vibrational frequencies of the title molecule are effected upon profusely with the fluorine substitutions in comparison to benzoic acid and these differences have been interpreted. The strong doubly hydrogen-bonded interface of the dimerized system is well demonstrated by the red shift in OH stretching frequency concomitant with the elongation of bond length.
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Affiliation(s)
- V Mukherjee
- Department of Physics, Udai Pratap Autonomous College, Varanasi 221002, India.
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Mukherjee V, Singh NP, Yadav RA. Experimental and calculation aspects of vibrational spectra and optimized geometry of 2,3,4-tri-fluoro-benzoic acid dimer. Spectrochim Acta A Mol Biomol Spectrosc 2009; 74:1107-1114. [PMID: 19850513 DOI: 10.1016/j.saa.2009.09.017] [Citation(s) in RCA: 3] [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: 03/09/2009] [Revised: 08/19/2009] [Accepted: 09/12/2009] [Indexed: 05/28/2023]
Abstract
Raman and FTIR spectra for 2,3,4-tri-fluoro-benzoic acid molecules have been recorded in the regions 50-4000 cm(-1) and 400-4000 cm(-1) respectively. The geometrical parameters have been optimized in both the monomeric and dimeric forms while vibrational frequencies have been calculated in optimum state in the dimeric form by employing DFT method. SQM force fields have also been used to calculate potential energy distributions in order to make conspicuous vibrational assignments. Raman activities calculated by DFT method have been converted to the corresponding Raman intensities using Raman scattering theory. Optimized geometries of the molecule have been interpreted and compared with the earlier reported experimental values for benzoic acid and some mono and di-fluorinated benzoic acids. Some of the vibrational frequencies of the title molecule are effected upon profusely with the fluorine substitutions in comparison to benzoic acid and these differences have been interpreted. The strong doubly hydrogen-bonded interface of the dimerized system is well demonstrated by the red shift in OH stretching frequency concomitant with the elongation of bond length.
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Affiliation(s)
- V Mukherjee
- Department of Physics, Udai Pratap Autonomous College, Varanasi 221002, India.
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Kalinowska M, Świderski G, Lewandowski W. Effect of substituent position and lithium, sodium and potassium on the electronic structure of o-, m- and p-methoxybenzoic acids. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.03.030] [Citation(s) in RCA: 7] [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: 10/20/2022]
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Martínez A, Dolgounitcheva O, Zakrzewski VG, Ortiz JV. Nonconventional Hydrogen Bonds: A Theoretical Study of [uracil-L]− (L = F, Cl, Br, I, Al, Ga, In) Complexes. J Phys Chem A 2008; 112:10399-404. [DOI: 10.1021/jp804946w] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana Martínez
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria P.O. Box 70-360, Coyoacán, 04510 México, D.F. México
| | - O. Dolgounitcheva
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - V. G. Zakrzewski
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
| | - J. V. Ortiz
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849-5312
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Benetoli LODB, de Santana H, Zaia CTBV, Zaia DAM. Adsorption of nucleic acid bases on clays: an investigation using Langmuir and Freundlich isotherms and FT-IR spectroscopy. Monatsh Chem 2008; 139:753-61. [DOI: 10.1007/s00706-008-0862-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Xiong J, Lan YJ, Zhang SF. Lanthanum(III) complex of uracil-1-acetic acid, a new 2D coordination polymer [La(Phen)(UA)3]n · nH2O (Phen = 1,10-phenanthroline and UA = uracil-1-acetate). RUSS J COORD CHEM+ 2007. [DOI: 10.1134/s1070328407040124] [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: 11/23/2022]
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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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Chaal L, Pillier F, Saidani B, Joiret S, Pailleret A, Deslouis C. Characterization of Counterion and Surface Influence on Micelle Formation Using Tapping Mode Atomic Force Microscopy in Air. J Phys Chem B 2006; 110:21710-8. [PMID: 17064130 DOI: 10.1021/jp061607q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cylindrical micelles prepared in aqueous solutions from cationic surfactants octadecyl trimethylammonium (OTA+) or cetyltrimethylammonium (CTA+) and parachlorobenzoate (PCB) counterion were successfully imaged after evaporation of water using tapping mode atomic force microscopy (TM-AFM) onto very smooth gold and glass substrates. With the help of the obtained topography AFM images, it was shown that the micellar structures are preserved on gold substrates after evaporation of the solvent despite the new set of stresses due mainly to capillary forces and dehydration. The influence of the substrate on the resulting micellar morphology observed in air was investigated for these two materials: cylindrical micelles were evidenced as loosely adherent on gold surface in the presence of parachlorobenzoate (PCB) and identical, geometrically speaking, to those known to exist in aqueous solutions. In this situation, topographic AFM images allowed us to determine accurately their geometrical characteristics such as diameter and length in the nanometer range. On the other hand, AFM images obtained in air on glass surfaces revealed micellar structures that are different from those existing in the bulk of the solution. Indeed, bilayer-type micelles with a thickness close to twice the surfactant monomer expected length were observed, indicating that the well-established and strong influence of glass on micelle geometry at the glass/solution interface is maintained after evaporation of water. These results have been analyzed on the basis of positive charge of gold deduced from electrochemical impedance spectroscopy (EIS) and Raman spectroscopy measurements on one hand and of the negative charge of glass on the other hand. Although these results appeal to new theoretical considerations dealing with dynamics of evaporation of micellar solution drops and/or with counterion contributions to macromolecular interactions in aqueous solutions and in air, this new AFM imaging method appears to be the more adequate one to image and measure the micelles formed in the presence of water.
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Affiliation(s)
- Lila Chaal
- UPR 15 CNRS Interfaces et Systèmes Electrochimiques, University P et M. Curie, 4 Place Jussieu, 75252 Paris Cédex 05, France
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Kalinowska M, Świsłocka R, Lewandowski W. The spectroscopic (FT-IR, FT-Raman, UV and 1H, 13C NMR) and theoretical studies of alkali metal o-methoxybenzoates. J Mol Struct 2006; 792-793:130-8. [DOI: 10.1016/j.molstruc.2005.10.062] [Citation(s) in RCA: 12] [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: 11/21/2022]
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Wang Y, Okabe N, Odoko M. Crystal structures of palladium(II) ternary complexes of 5-x-2-aminobenzoic acid with 1,10-phenanthroline and their interaction with calf thymus DNA (where X=Cl, Br and I). Chem Pharm Bull (Tokyo) 2005; 53:1291-5. [PMID: 16204985 DOI: 10.1248/cpb.53.1291] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The crystal structures of a series of three palladium(II) ternary complexes of 5-halogeno-2-aminobenzoic acid (5-X-AB, where X=Cl, Br and I) with 1,10-phenanthroline [Pd(5-Cl-AB)(phen)] (1), [Pd(5-Br-AB)(phen)] (2) and [Pd(5-I-AB)(phen)] (3) have been determined, and their coordination geometries and the crystal architecture characterized. All of the complexes are an isostructure in which each Pd(II) atom has basically similar square planar coordination geometry. The substitute halogen group at 5-position of AB plays an important role in producing the coordination bonds of the carboxylate and amino groups in which the carboxylate O atom and the amino N atom act as the negative monodentate ligand atoms. The coordination bond distances of O-Pd increase in the order 1<2<3, while those of N-Pd decrease in the same order. The binding of the complexes to the calf thymus DNA has also been studied by the fluorescence method. Each of the complexes shows high binding propensity to DNA which can be reflected as the relative order 1<2<3.
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Affiliation(s)
- Yue Wang
- Laboratory of Inorganic Chemistry, China Pharmaceutical University, Nanjing, China
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