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Pincer Complexes Derived from Tridentate Schiff Bases for Their Use as Antimicrobial Metallopharmaceuticals. INORGANICS 2022. [DOI: 10.3390/inorganics10090134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Within the current challenges in medicinal chemistry, the development of new and better therapeutic agents effective against infectious diseases produced by bacteria, fungi, viruses, and parasites stands out. With chemotherapy as one of the main strategies against these diseases focusing on the administration of organic and inorganic drugs, the latter is generally based on the synergistic effect produced by the formation of metal complexes with biologically active organic compounds. In this sense, Schiff bases (SBs) represent and ideal ligand scaffold since they have demonstrated a broad spectrum of antitumor, antiviral, antimicrobial, and anti-inflammatory activities, among others. In addition, SBs are synthesized in an easy manner from one-step condensation reactions, being thus suitable for facile structural modifications, having the imine group as a coordination point found in most of their metal complexes, and promoting chelation when other donor atoms are three, four, or five bonds apart. However, despite the wide variety of metal complexes found in the literature using this type of ligands, only a handful of them include on their structures tridentate SBs ligands and their biological evaluation has been explored. Hence, this review summarizes the most important antimicrobial activity results reported this far for pincer-type complexes (main group and d-block) derived from SBs tridentate ligands.
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Ali TA, Mohamed GG, Omar M, Hanafy NM. Construction and performance characteristics of chemically modified carbon paste electrodes for the selective determination of Co(II) ions in water samples. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ghosh S, Malik S, Jain B, Iqbal SA. Synthesis, characterization, antimicrobial and diuretic study of Mg(II), Mn(II), Fe(II) and VO(II) complexes of chemotherapeutic importance. JOURNAL OF SAUDI CHEMICAL SOCIETY 2012. [DOI: 10.1016/j.jscs.2011.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dholakiya PP, Patel MN. Preparation, Characterization, and Antimicrobial Activities of Some Mixed‐Ligand Complexes of Mn(II), Co(II), Ni(II), Cu(II), and Cd(II) with Monobasic Bidentate (ON) Schiff Base and Neutral Bidentate (NN) Ligands. ACTA ACUST UNITED AC 2010. [DOI: 10.1081/sim-120028308] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Prakash P. Dholakiya
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, 388 120, Gujarat, India
| | - M. N. Patel
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, 388 120, Gujarat, India
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Panchal PK, Patel MN. Synthesis, Structural Characterization, and Antibacterial Studies of Some Mixed‐Ligand First Row d‐Transition Metal Complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1081/sim-120039271] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Pragnesh K. Panchal
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, 388 120, Gujarat, India
| | - M. N. Patel
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, 388 120, Gujarat, India
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Panchal PK, Patel DH, Patel MN. Preparation and Thermal, Spectroscopic, and Antibacterial Studies of Some Mixed‐Ligand Complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1081/sim-120039268] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Pragnesh K. Panchal
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, Gujarat, 388 120, India
| | - D. H. Patel
- b Department of Biosciences , Sardar Patel University , Vallabh‐Vidyanagar, Gujarat, India
| | - M. N. Patel
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, Gujarat, 388 120, India
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Xing YH, Han J, Zhou GH, Sun Z, Zhang XJ, Zhang BL, Zhang YH, Yuan HQ, Ge MF. Syntheses and structures of mononuclear and binuclear transition metal complexes (Cu, Zn, Ni) with (salicylideneglycine and imidazole). J COORD CHEM 2008. [DOI: 10.1080/00958970701389989] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yong Heng Xing
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Jing Han
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Guang Hua Zhou
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Zheng Sun
- b Institute of Chemistry , The Chinese Academy of Sciences , Beijing, 100080, P.R. China
| | - Xing Jing Zhang
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Bao Li Zhang
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Yuan Hong Zhang
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Hou Qun Yuan
- a Bioinorganic Laboratory , College of Chemistry and Chemical Engineering, Liaoning Normal University , Dalian, 116029, P.R. China
| | - Mao Fa Ge
- b Institute of Chemistry , The Chinese Academy of Sciences , Beijing, 100080, P.R. China
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Dholakiya PP, Patel MN. PREPARATION, MAGNETIC, SPECTRAL, AND BIOCIDAL STUDIES OF SOME TRANSITION METAL COMPLEXES WITH 3,5-DIBROMOSALICYLIDENEANILINE AND NEUTRAL BIDENTATE LIGANDS. ACTA ACUST UNITED AC 2007. [DOI: 10.1081/sim-120004448] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Prakash P. Dholakiya
- a Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, Gujarat, 388 120, India
| | - M. N. Patel
- b Department of Chemistry , Sardar Patel University , Vallabh Vidyanagar, Gujarat, 388 120, India
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Kharodawala MJ, Rana AK. Synthesis, Characterization, and Biological Activity of Some Transition Metal Chelates of 4‐Acyloxime‐2‐pyrazolin‐5‐ones. ACTA ACUST UNITED AC 2007. [DOI: 10.1081/sim-120024324] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Arjun K. Rana
- a Department of Chemistry , Navjivan Science College , Dahod, 389 151, India
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Mohamed GG, Omar MM, Hindy AMM. Synthesis, characterization and biological activity of some transition metals with Schiff base derived from 2-thiophene carboxaldehyde and aminobenzoic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2005; 62:1140-50. [PMID: 15955728 DOI: 10.1016/j.saa.2005.03.031] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2005] [Accepted: 03/16/2005] [Indexed: 05/03/2023]
Abstract
Metal complexes of Schiff base derived from 2-thiophene carboxaldehyde and 2-aminobenzoic acid (HL) are reported and characterized based on elemental analyses, IR, 1H NMR, solid reflectance, magnetic moment, molar conductance and thermal analysis (TGA). The ligand dissociation as well as the metal-ligand stability constants were calculated pH metrically at 25 degrees C and ionic strength mu=0.1 (1M NaCl). The complexes are found to have the formulae [M(HL)2](X)n.yH2O (where M=Fe(III) (X=Cl, n=3, y=3), Co(II) (X=Cl, n=2, y=1.5), Ni(II) (X=Cl, n=2, y=1) and UO2(II) (X=NO3, n=2, y=0)) and [M(L)2] (where M=Cu(II) (X=Cl) and Zn(II) (X=AcO)). The molar conductance data reveal that Fe(III) and Co(II), Ni(II) and UO2(II) chelates are ionic in nature and are of the type 3:1 and 2:1 electrolytes, respectively, while Cu(II) and Zn(II) complexes are non-electrolytes. IR spectra show that HL is coordinated to the metal ions in a terdentate manner with ONS donor sites of the carboxylate O, azomethine N and thiophene S. From the magnetic and solid reflectance spectra, it is found that the geometrical structure of these complexes are octahedral. The thermal behaviour of these chelates shows that the hydrated complexes losses water molecules of hydration in the first step followed immediately by decomposition of the anions and ligand molecules in the subsequent steps. The activation thermodynamic parameters, such as, E*, DeltaH*, DeltaS* and DeltaG* are calculated from the DrTG curves using Coats-Redfern method. The synthesized ligands, in comparison to their metal complexes also were screened for their antibacterial activity against bacterial species, Escherichia coli, Pseudomonas aeruginosa, Staphylococcus pyogones and Fungi (Candida). The activity data show that the metal complexes to be more potent/antibacterial than the parent Schiff base ligand against one or more bacterial species.
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Affiliation(s)
- Gehad G Mohamed
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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Mohamed GG, Zaki ZM. Synthesis, IR, Magnetic, Solid Reflectance, and Thermal Characterization of Transition Metal Chelates with 2‐(5‐Acetylamino‐2‐hydroxyphenylazo)‐benzoic Acid. ACTA ACUST UNITED AC 2004. [DOI: 10.1081/sim-200026299] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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