1
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Hashmi K, Gupta S, Siddique A, Khan T, Joshi S. Medicinal applications of vanadium complexes with Schiff bases. J Trace Elem Med Biol 2023; 79:127245. [PMID: 37406475 DOI: 10.1016/j.jtemb.2023.127245] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/31/2023] [Accepted: 06/15/2023] [Indexed: 07/07/2023]
Abstract
Many transition metal complexes have been explored for their therapeutic properties after the discovery of cisplatin. Schiff bases have an efficient complexation tendency with the transition metals and several medicinal properties have been reported. However, fewer studies have reported the medicinal utility of vanadium and its Schiff base complexes. This paper provides a comprehensive overview of vanadium complexes with Schiff bases along with their mechanistic insight. Vanadium complexes in + 4 and + 5 oxidation states have exhibited well-defined geometry and found to be thermodynamically stable. The studies have reported the G0/G1 phase cell cycle arrest and decreased delta psi m, inducing mitochondrial membrane depolarization in cancer cell lines along with the alterations in the metabolism of the cancer cells upon dosing with the vanadium complexes. Cancer cell invasion and growth are also found to be markedly reduced by peroxo complexes of vanadium. The studies included in the review paper have been taken from leading indexing databases and focus was laid on recent reports in literature. The biological potential of vanadium complexes of Schiff bases opens new horizons for future interdisciplinary studies and investigation focussed on understanding the biochemistry of these complexes, along with designing new complexes which have better bioavailability, solubility and low or non-toxicity.
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Affiliation(s)
- Kulsum Hashmi
- Department of Chemistry, Isabella Thoburn College, Lucknow, UP 226007, India
| | - Sakshi Gupta
- Department of Chemistry, Isabella Thoburn College, Lucknow, UP 226007, India
| | - Armeen Siddique
- Department of Chemistry, Isabella Thoburn College, Lucknow, UP 226007, India
| | - Tahmeena Khan
- Department of Chemistry, Integral University, Lucknow, UP 226026, India
| | - Seema Joshi
- Department of Chemistry, Isabella Thoburn College, Lucknow, UP 226007, India.
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2
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Mureseanu M, Filip M, Bleotu I, Spinu CI, Marin AH, Matei I, Parvulescu V. Cu(II) and Mn(II) Anchored on Functionalized Mesoporous Silica with Schiff Bases: Effects of Supports and Metal-Ligand Interactions on Catalytic Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1884. [PMID: 37368314 DOI: 10.3390/nano13121884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023]
Abstract
New series of Cu(II) and Mn(II) complexes with Schiff base ligands derived from 2-furylmethylketone (Met), 2-furaldehyde (Fur), and 2-hydroxyacetopheneone (Hyd) have been synthesized in situ on SBA-15-NH2, MCM-48-NH2, and MCM-41-NH2 functionalized supports. The hybrid materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, SEM and TEM microscopy, TG analysis, and AAS, FTIR, EPR, and XPS spectroscopies. Catalytic performances were tested in oxidation with the hydrogen peroxide of cyclohexene and of different aromatic and aliphatic alcohols (benzyl alcohol, 2-methylpropan-1-ol, and 1-buten-3-ol). The catalytic activity was correlated with the type of mesoporous silica support, ligand, and metal-ligand interactions. The best catalytic activity of all tested hybrid materials was obtained in the oxidation of cyclohexene on SBA-15-NH2-MetMn as a heterogeneous catalyst. No leaching was evidenced for Cu and Mn complexes, and the Cu catalysts were more stable due to a more covalent interaction of the metallic ions with the immobilized ligands.
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Affiliation(s)
- Mihaela Mureseanu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Mihaela Filip
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Irina Bleotu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Cezar Ionut Spinu
- Department of Chemistry, Faculty of Sciences, University of Craiova, Calea Bucuresti, 107I, 200478 Craiova, Romania
| | - Alexandru Horia Marin
- Ken and Mary Alice Lindquist Department of Nuclear Engineering, Penn State University, University Park, State College, PA 16802, USA
- Surface Analysis Laboratory, Institute for Nuclear Research Pitesti, 115400 Mioveni, Romania
| | - Iulia Matei
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
| | - Viorica Parvulescu
- "IlieMurgulescu" Institute of Physical Chemistry, Romanian Academy, Splaiul Independentei 202, 060021 Bucharest, Romania
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3
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Reddy GN, Losetty V, Hazarathaiah Yadav C. Synthesis of Novel Schiff Base Metal Complexes and their Spectroscopic Characterization, Biological Activity and Molecular Docking Investigation. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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4
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Sumrra SH, Zafar W, Imran M, Chohan ZH. A review on the biomedical efficacy of transition metal triazole compounds. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2059359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, Pakistan
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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Demirbaş Ü, Yanık H, Akçay HT, Durmuş M, Bekircan O, Kantekin H. Synthesis, characterization, photophysical and photochemical properties of peripherally tetra-1,2,4-triazol-3-ylthio substituted metal-free phthalocyanine and its zinc(II) and lead(II) derivatives. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2053846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ümit Demirbaş
- Department of Chemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Hülya Yanık
- Department of Chemistry, Gebze Technical University, Kocaeli, Turkey
| | - Hakkı Türker Akçay
- Department of Chemistry, Faculty of Arts and Sciences, Recep Tayyip Erdoğan University, Rize, Turkey
| | - Mahmut Durmuş
- Department of Chemistry, Gebze Technical University, Kocaeli, Turkey
| | - Olcay Bekircan
- Department of Chemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Halit Kantekin
- Department of Chemistry, Karadeniz Technical University, Trabzon, Turkey
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Sumrra SH, Zafar W, Javed H, Zafar M, Hussain MZ, Imran M, Nadeem MA. Facile synthesis, spectroscopic evaluation and antimicrobial screening of metal endowed triazole compounds. Biometals 2021; 34:1329-1351. [PMID: 34564801 DOI: 10.1007/s10534-021-00345-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 09/15/2021] [Indexed: 11/29/2022]
Abstract
The scientific interest in developing new complexes as inhibitors of bacterial biofilm related infections is constantly rising. The present work describes the chemical synthesis, structural and biological scrutiny of a triazole Schiff base ligand and its corresponding complexes. Triazole Schiff base, (2-methoxy-4-[(1H-1,2,4-triazol-3-ylimino)methyl]phenol) was synthesized from the condensation reaction of 3-amino-1,2,4-triazole and 4-hydroxy-3-methoxybenzaldehyde in an equimolar ratio. The triazole ligand (H2L) was characterized by physical (solubility, color, melting point), spectroscopic [UV-visible (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance (1H-NMR) and mass spectra (MS)] and micro analysis to evaluate their elemental composition. The bidentate ligand was complexed with transition metal [VO(IV), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)] in 1:2 molar ratio. The complexes were characterized by physical (color, solubility, decomposition temperature, conductance and magnetic moment), FT-IR, UV-Vis and elemental analysis. Thermal stability and fluorescence properties of the compounds were also determined. Density functional theory based theoretical calculations were accomplished to gain more insight into spectroscopic properties. The frontier molecular orbital analysis revealed that the ligand was less reactive with reduced electron donating capability and more kinetic stability than complexes. The as-synthesized compounds were scrutinized for anti-bacterial and anti-fungal activity against selected strains. Cobalt complex exhibited highest antibacterial activity against Escherichia coli and nickel complex has shown highest antifungal activity against Aspergillus niger. All the compounds also showed good antioxidant activity. The theoretical results reflect consistency with the experimental findings signifying that such compounds could be the promising chemical scaffolds in the near future against microbial infectious.
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Affiliation(s)
- Sajjad H Sumrra
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan.
| | - Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Hassan Javed
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Muddassar Zafar
- Department of Biochemistry and Biotechnology, University of Gujrat, Gujrat, 50700, Pakistan
| | | | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia
| | - Muhammad A Nadeem
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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7
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Lin Y, Betts H, Keller S, Cariou K, Gasser G. Recent developments of metal-based compounds against fungal pathogens. Chem Soc Rev 2021; 50:10346-10402. [PMID: 34313264 DOI: 10.1039/d0cs00945h] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review provides insight into the rapidly expanding field of metal-based antifungal agents. In recent decades, the antibacterial resistance crisis has caused reflection on many aspects of public health where weaknesses in our medicinal arsenal may potentially be present - including in the treatment of fungal infections, particularly in the immunocompromised and those with underlying health conditions where mortality rates can exceed 50%. Combination of organic moieties with known antifungal properties and metal ions can lead to increased bioavailability, uptake and efficacy. Development of such organometallic drugs may alleviate pressure on existing antifungal medications. Prodigious antimicrobial moieties such as azoles, Schiff bases, thiosemicarbazones and others reported herein lend themselves easily to the coordination of a host of metal ions, which can vastly improve the biocidal activity of the parent ligand, thereby extending the library of antifungal drugs available to medical professionals for treatment of an increasing incidence of fungal infections. Overall, this review shows the impressive but somewhat unexploited potential of metal-based compounds to treat fungal infections.
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Affiliation(s)
- Yan Lin
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Harley Betts
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Sarah Keller
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Kevin Cariou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 75005 Paris, France.
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8
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Zafar W, Sumrra SH, Chohan ZH. A review: Pharmacological aspects of metal based 1,2,4-triazole derived Schiff bases. Eur J Med Chem 2021; 222:113602. [PMID: 34139626 DOI: 10.1016/j.ejmech.2021.113602] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 05/06/2021] [Accepted: 06/01/2021] [Indexed: 12/19/2022]
Abstract
Clinical reports have highlighted the radical increase of antibiotic resistance. As a result, multidrug resistance has emerged as a serious threat to human health. Many organic compounds commonly used as drugs in the past, no longer have pure organic mode of action rather need bio-transformation or more activation. Bulk of research has shown that they need trace amount of metal ions incorporated within the chemistry of bioactive molecules for enhancement of their potentiality to fight aggressively against resistance. The deficiency of some metal ions can also be responsible for many diseases like growth retardation, pernicious anemia and heart diseases in infants. To overcome these problems, there is a need to introduce novel strategies which have new mechanism of action along with significant spectrum of biological activity, enhanced safety and efficacy. Bioinorganic compounds have played imperative role in developing the new strategy in the form of "Metal Based Drugs". In current years there have been momentous rise of interest in the application of metal based Schiff base compounds to treat various diseases which are difficult to be treated with conventional methodologies. The unique properties of metal chelates acting as an intermediate between conventional organic and inorganic compounds provided innovative opportunities in the field of pharmaceutical chemistry. In this review, we have exclusively focused on the search of metal based 1,2,4-triazole derived Schiff base compounds (synthesized, reported and reviewed in the past ten years) that possess various biological activities such as antifungal, antibacterial, antioxidant, antidiabetic, anthelmintic, anticancer, antiproliferative, cytotoxic and DNA-intercalation activity.
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Affiliation(s)
- Wardha Zafar
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan
| | - Sajjad H Sumrra
- Department of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan.
| | - Zahid H Chohan
- Department of Chemistry, Institute of Southern Punjab, Multan, Pakistan
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9
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Vashistha VK, Kumar A. Synthesis of Co(II) and Ni(II) Asymmetric Tetraazamacrocyclic Complexes and Their Electrochemical and Antimicrobial Studies. RUSS J INORG CHEM+ 2021. [PMCID: PMC7847242 DOI: 10.1134/s0036023620140077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- V. K. Vashistha
- Department of Chemistry, GLA University, 281406 Mathura, India
| | - A. Kumar
- Department of Chemistry, GLA University, 281406 Mathura, India
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10
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Synthesis, Characterization, Cyclic Voltammetry, and Biological Studies of Co(II), Ni(II), and Cu(II) Complexes of a Tridentate Schiff Base, 1-((E)-(2-Mercaptophenylimino) Methyl) Naphthalen-2-ol (H2L1). J CHEM-NY 2020. [DOI: 10.1155/2020/5238501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel tridentate Schiff base, 1-((E)-(2-mercaptophenylimino) methyl) naphthalen-2-ol (H2L1), was synthesized by the condensation reaction of 2-hydroxy-1-naphthaldehyde with 2-aminothiophenol in absolute ethanol. The resulting ligand was reacted with Co(II), Ni(II), and Cu(II) ions to obtain tetrahedral CoL1, NiL1, and square planar CuL1 complexes. The Schiff base and its metal complexes were characterized using 1H-NMR, microanalysis, FT-IR, UV-visible, and mass spectroscopy (ESI-MS). All the compounds are soluble in DMSO and DMF. Spectroscopic studies show that the ligand coordinates to the metal center through the azomethine nitrogen, naphthoxide oxygen, and thiophenoxide sulfur to form a tridentate chelate system. Conductance measurements show that these compounds are molecular in solution. Cyclic voltammetry studies show Co(III)/Co(II) and Cu(II)/Cu(I) redox systems to be quasi-reversible involving a monoelectronic transfer while Ni(III)/Ni(II) was irreversible. In vitro antibacterial and antifungal activity against five bacterial strains (Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Enterococcus faecalis, and Proteus mirabilis) and five fungal strains (Candida albicans, Candida glabrata, Candida tropicalis, Candida krusei, and Candida parapsilosis) showed no antifungal activity but moderate antibacterial activity on E. coli, S. aureus, P. aeruginosa, and P. mirabilis bacterial strains. Antioxidant studies reveal that the ligand and its Cu(II) complex are more potent than Co(II) and Ni(II) complexes to eliminate free radicals.
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11
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Fayed TA, Gaber M, Abu El‐Reash GM, El‐Gamil MM. Structural, DFT/B3LYP and molecular docking studies of binuclear thiosemicarbazide Copper (II) complexes and their biological investigations. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5800] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tarek A. Fayed
- Department of Chemistry, Faculty of ScienceTanta University Tanta Egypt
| | - Mohamed Gaber
- Department of Chemistry, Faculty of ScienceTanta University Tanta Egypt
| | - Gaber M. Abu El‐Reash
- Department of Chemistry, Faculty of ScienceMansoura University Mansoura, P.O.Box 70 Mansoura Egypt
| | - Mohammed M. El‐Gamil
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medico legal OrganizationMinistry of Justice Egypt
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Al‐Hazmi GA, Abou‐Melha KS, El‐Metwaly NM, Althagafi I, Shaaban F, Elghalban MG, El‐Gamil MM. Spectroscopic and theoretical studies on Cr (III), Mn (II) and Cu (II) complexes of hydrazone derived from picolinic hydrazide and O‐vanillin and evaluation of biological potency. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5408] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gamil A.A. Al‐Hazmi
- Chemistry Department, Faculty of ScienceKing Khalid University P.O. Box 9004 Abha Saudi Arabia
- Chemistry Department, Faculty of Applied SciencesTaiz University P.O. Box 82 Taiz Yemen
| | - Khlood S. Abou‐Melha
- Chemistry Department, Faculty of ScienceKing Khalid University P.O. Box 9004 Abha Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of applied scienceUmm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of ScienceMansoura University El‐Gomhoria Street Egypt
| | - Ismail Althagafi
- Department of Chemistry, Faculty of applied scienceUmm‐Al‐Qura University Makkah Saudi Arabia
| | - Fathy Shaaban
- Custodian of two holy mosques Institute for Hajj and Umrah ResearchUmm‐Al‐Qura University Makkah Saudi Arabia
| | - Marwa G. Elghalban
- Department of Chemistry, Faculty of applied scienceUmm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of ScienceMansoura University El‐Gomhoria Street Egypt
| | - Mohammed M. El‐Gamil
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medico‐legal Organization,Ministry of Justice Egypt
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Physicochemical investigations, biological studies of the Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) and UO2(VI) complexes of picolinic acid hydrazide derivative: A combined experimental and computational approach. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Comparative Studies of Some Novel Cu 2+and Fe 3+Chelates Derived From Tricine (L 1) by Single Crystal X‐ray, Spectroscopic and Biological Data: Applications to Investigate Antitumor Activity. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Ustabaş R, Çoruh U, Akçay HT, Menteşe E, Vazquez-Lopez EM. Crystal Structure of 4-[(4-Ethyl-5-Phenyl-4H-1,2,4-Triazol-3-yl)Sulfanyl]Phthalonitrile. J STRUCT CHEM+ 2018. [DOI: 10.1134/s002247661805027x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Fe
II
Complexes with Triple
N
1,
N
2‐Triazole Bridge Schiff Base Ligand: Antiferromagnetic Dimer vs. Spin Conversion Trimer. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abrupt Spin Crossover Behavior in a Linear N1,N2-Triazole Bridged Trinuclear Fe(II) Complex. MAGNETOCHEMISTRY 2018. [DOI: 10.3390/magnetochemistry4030034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The synthesis, structures and magnetic properties of a new trinuclear spin crossover complex [FeII3(pyrtrz)6(TsO)6]·10H2O·2CH3OH (C2) and its analogue binuclear [FeII2(pyrtrz)5(SCN)4]·7H2O (C1), are reported here. These two compounds are synthesized based on the pyrrolyl functionalized Schiff base 1,2,4-triazole ligand 4-((1H-pyrrol-2-yl)methylene-amino)-4H-1,2,4-triazole (pyrtrz), which represent rare discrete multi-nuclear species, with µ2-N1,N2-triazole bridges linking the FeII centers. DC magnetic susceptibility measurements revealed an abrupt single-step spin crossover (SCO) behavior for compound 2 on the central FeII site and single-crystal X-ray diffraction (173 K) showed that this compound crystallizes in the monoclinic space group (P21/c), and multiple intramolecular interactions were found responsible for the abrupt transition. Compound 1 is a binuclear complex with thiocyanate as terminal ligands. This compound stays in high spin state over the whole temperature range and displays weak antiferromagnetic exchange coupling.
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Joshi R, Pandey N, Yadav SK, Tilak R, Mishra H, Pokharia S. Synthesis, spectroscopic characterization, DFT studies and antifungal activity of (E)-4-amino-5-[N'-(2-nitro-benzylidene)-hydrazino]-2,4-dihydro-[1,2,4]triazole-3-thione. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.081] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Structural, thermogravimetric, B3LYP and biological studies on some heterocyclic thiosemicarbazide copper (II) complexes and evaluation of their molecular docking. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.035] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Pokharia M, Yadav SK, Mishra H, Pandey N, Tilak R, Pokharia S. Synthesis, spectroscopic characterization, biological activity and theoretical studies of (E)-N3-(2-chlorobenzylidene)-H-1,2,4-triazole-3,5-diamine. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Chinthala CP, Angappan S. Effect of solvent coordination on the structure of β-diketone-based vanadyl complexes and assessment of in vitro
antidiabetic activity and cytotoxicity. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | - Sheela Angappan
- Department of Chemistry, School of Advanced Sciences; VIT University; Vellore Tamil Nadu India
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22
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Coordination behavior of new bis(tridentate ONO, ONS and ONN) donor hydrazones towards some transition metal ions: Synthesis, spectral, thermal, antimicrobial and antitumor studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.056] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Akçay HT, Çoruh U, Bayrak R, Menteşe E, Vazquez Lopez EM. A spectroscopic study on new phthalonitrile derivative and its computational background: 4-[(4,5-Diphenyl-4H-1,2,4-triazol-3-yl)sulfanyl]benzene-phthalonitrile. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.016] [Citation(s) in RCA: 6] [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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24
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Yasmeen S, Sumrra SH, Akram MS, Chohan ZH. Antimicrobial metal-based thiophene derived compounds. J Enzyme Inhib Med Chem 2016; 32:106-112. [PMID: 27766891 PMCID: PMC6009934 DOI: 10.1080/14756366.2016.1238363] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A novel series of thiophene derived Schiff bases and their transition metal- [Co(II), Cu(II), Zn(II), Ni(II)] based compounds are reported. The Schiff bases act as tridentate ligands toward metal ions via azomethine-N, deprotonated-N of ammine substituents and S-atom of thienyl moiety. The synthesized ligands along with their metal complexes were screened for their in vitro antibacterial activity against six bacterial pathogens (Escherichia coli, Shigella flexneri, Pseudomonas aeruginosa, Salmonella typhi, Staphylococcus aureus and Bacillus subtilis) and for antifungal activity against six fungal pathogens (Trichophytonlongifusus, Candida albicans, Aspergillus flavus, Microsporum canis, Fusarium solani and Candida glabrata). The results of antimicrobial studies revealed the free ligands to possess potential activity which significantly increased upon chelation.
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Affiliation(s)
- Shakeela Yasmeen
- a Institute of Chemical Sciences , Bahauddin Zakariya University , Multan , Pakistan
| | | | | | - Zahid H Chohan
- d Department of Chemistry , University of Sargodha , Bhakkar Campus, Sargodha, Pakistan
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Amjad M, Sumrra SH, Akram MS, Chohan ZH. Metal-based ethanolamine-derived compounds: a note on their synthesis, characterization and bioactivity. J Enzyme Inhib Med Chem 2016; 31:88-97. [DOI: 10.1080/14756366.2016.1220375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Muhammad Amjad
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan,
| | - Sajjad H. Sumrra
- Department of Chemistry, Institute of Natural Sciences, University of Gujrat, Gujrat, Pakistan,
| | | | - Zahid H. Chohan
- Department of Chemistry, University of Sargodha, Bhakkar Campus, Pakistan
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Gaber M, El-Ghamry HA, Fathalla SK. Ni(II), Pd(II) and Pt(II) complexes of (1H-1,2,4-triazole-3-ylimino)methyl]naphthalene-2-ol. Structural, spectroscopic, biological, cytotoxicity, antioxidant and DNA binding. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:396-404. [PMID: 25576936 DOI: 10.1016/j.saa.2014.12.057] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/17/2014] [Indexed: 06/04/2023]
Abstract
Metal complexes of the general formula [ML(H2O)Cl]nH2O; n=1 for M=Ni and Pt and n=2 for M=Pd, L=Schiff base (HL) derived from the condensation of 3-amino-1,2,4-triazole and 2-hydroxy-1-naphthaldehyde, were prepared. The synthesized ligand and its metal complexes were characterized on the basis of elemental analyses, spectral and magnetic studies as well as thermal analysis. The IR spectra revealed that the ligand is coordinated to the metal ions in bidentate manner via the N-atom of the azomethine group and the phenolic OH group. Square planar geometry was proposed for Pd(II) and Pt(II) complexes and tetrahedral for Ni(II) complex. The ligand and its metal complexes were screened against the sensitive organisms Escherichia coli as Gram-negative bacteria, Staphylococcus aureus as Gram-positive bacteria, Aspergillus flavus and Candida albicans as fungi. Moreover, the anticancer activity of the ligand and its metal complexes was evaluated in liver carcinoma (HEPG2) cell line. The results obtained indicated that the Schiff base ligand is more effective than its metal complexes towards the tested cell line. Ni(II), Pd(II) and Pt(II) complexes as well as the free Schiff base ligand were tested for their antioxidant activities. The DNA-binding properties of the studied complexes have been investigated by electronic absorption and viscosity measurements.
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Affiliation(s)
- M Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - H A El-Ghamry
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt; Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia.
| | - S K Fathalla
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Sumrra SH, Hanif M, Chohan ZH. Design, synthesis and in vitro bactericidal/fungicidal screening of some vanadyl(IV)complexes with mono- and di-substituted ONS donor triazoles. J Enzyme Inhib Med Chem 2015; 30:800-8. [PMID: 25716124 DOI: 10.3109/14756366.2014.976565] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sajjad H. Sumrra
- Department of Chemistry, Institute of Chemical Sciences and Biological Sciences, University of Gujrat, Gujrat, Pakistan
| | - Muhammad Hanif
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan, and
| | - Zahid H. Chohan
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
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Gaber M, El-Ghamry H, Atlam F, Fathalla S. Synthesis, spectral and theoretical studies of Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:919-929. [PMID: 25282021 DOI: 10.1016/j.saa.2014.09.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 09/04/2014] [Accepted: 09/10/2014] [Indexed: 06/03/2023]
Abstract
Ni(II), Pd(II) and Pt(II) complexes of 5-mercapto-1,2,4-triazole-3-imine-2'-hydroxynaphthaline have been isolated and characterized by elemental analysis, IR, (1)H NMR, EI-mass, UV-vis, molar conductance, magnetic moment measurements and thermogravimetric analysis. The molar conductance values indicated that the complexes are non-electrolytes. The magnetic moment values of the complexes displayed diamagnetic behavior for Pd(II) and Pt(II) complexes and tetrahedral geometrical structure for Ni(II) complex. From the bioinorganic applications point of view, the interaction of the ligand and its metal complexes with CT-DNA was investigated using absorption and viscosity titration techniques. The Schiff-base ligand and its metal complexes have also been screened for their antimicrobial and antitumor activities. Also, theoretical investigation of molecular and electronic structures of the studied ligand and its metal complexes has been carried out. Molecular orbital calculations were performed using DFT (density functional theory) at B3LYP level with standard 6-31G(d,p) and LANL2DZ basis sets to access reliable results to the experimental values. The calculations were performed to obtain the optimized molecular geometry, charge density distribution, extent of distortion from regular geometry, the highest occupied molecular orbital (HOMO), the lowest unoccupied molecular orbital (LUMO), Mulliken atomic charges, reactivity index (ΔE), dipole moment (D), global hardness (η), softness (σ), electrophilicity index (ω), chemical potential and Mulliken electronegativity (χ).
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Affiliation(s)
- Mohamed Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Hoda El-Ghamry
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt; Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Saudi Arabia.
| | - Faten Atlam
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Shaimaa Fathalla
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Synthesis, characterization, X-ray crystal structure, DFT calculation and antibacterial activities of new vanadium(IV, V) complexes containing chelidamic acid and novel thiourea derivatives. J Inorg Biochem 2015; 147:54-64. [PMID: 25770009 DOI: 10.1016/j.jinorgbio.2015.02.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 02/13/2015] [Accepted: 02/13/2015] [Indexed: 12/16/2022]
Abstract
Three new thiourea ligands derived from the condensation of aroyl- and aryl-isothiocyanate derivatives with 2,6-diaminopyridine, named 1,1'-(pyridine-2,6-diyl)bis(3-(benzoyl)thiourea) (L1), 1,1'-(pyridine-2,6-diyl)bis(3-(2-chlorobenzoyl)thiourea) (L2) and 1,1'-(pyridine-2,6-diyl)bis(3-(4-chlorophenyl)thiourea) (L3), their oxido-vanadium(IV) complexes, namely [VO(L1('))(H2O)] (C1), [VO(L2('))(H2O)] (C2) and [VO(L3('))(H2O)] (C3), and also, dioxo-vanadium(V) complex containing 4-hydroxy-2,6-pyridine dicarboxylic acid (chelidamic acid, H2dipic-OH) and metformin (N,N-dimethylbiguanide, Met), named [H2Met][VO2(dipic-OH)]2·H2O (C4), were synthesized and characterized by elemental analysis, FTIR and (1)H NMR and UV-visible spectroscopies. Proposed structures for free thiourea ligands and their vanadium complexes were corroborated by applying geometry optimization and conformational analysis. Solid state structure of complex [H2Met][VO2(dipic-OH)]2·H2O (triclinic, Pī) was fully determined by single crystal X-ray diffraction analysis. In this complex, metformin is double protonated and acted as counter ion. The antibacterial properties of these compounds were investigated in vitro against standard Gram-positive and Gram-negative bacterial strains. The experiments showed that vanadium(IV) complexes had the superior antibacterial activities than novel thiourea derivatives and vanadium(V) complex against all Gram-positive and Gram-negative bacterial strains.
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Paciorek P, Szklarzewicz J, Jasińska A, Trzewik B, Nitek W, Hodorowicz M. Synthesis, structural characterization and spectroscopy studies of new oxovanadium(IV, V) complexes with hydrazone ligands. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.11.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
Background. Both 1,2,3- and 1,2,4-triazoles are nowadays incorporated in numerous antibacterial pharmaceutical formulations.Aim. Our study aimed to prepare three substituted 1,2,4-triazoles and to evaluate their antibacterial properties.Materials and Methods. One disubstituted and two trisubstituted 1,2,4-triazoles were prepared and characterised by physical and spectroscopic properties (melting point, FTIR, NMR, and GC-MS). The antibacterial properties were studied against three bacterial strains:Staphylococcus aureus(ATCC 25923),Escherichia coli(ATCC 25922), andPseudomonas aeruginosa(ATCC 27853), by the agar disk diffusion method and the dilution method with MIC (minimal inhibitory concentration) determination.Results. The spectroscopic characterization of compounds and the working protocol for the synthesis of the triazolic derivatives are described. The compounds were obtained with 15–43% yields and with high purities, confirmed by the NMR analysis. The evaluation of biological activities showed that the compounds act as antibacterial agents againstStaphylococcus aureus(ATCC 25923), while being inactive againstEscherichia coli(ATCC 25922) andPseudomonas aeruginosa(ATCC 27853).Conclusions. Our results indicate that compounds containing 1,2,4-triazolic moiety have great potential in developing a wide variety of new antibacterial formulations.
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Sumrra SH, Ibrahim M, Ambreen S, Imran M, Danish M, Rehmani FS. Synthesis, spectral characterization, and biological evaluation of transition metal complexes of bidentate N, o donor schiff bases. Bioinorg Chem Appl 2014; 2014:812924. [PMID: 25147493 PMCID: PMC4134787 DOI: 10.1155/2014/812924] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/07/2014] [Accepted: 07/09/2014] [Indexed: 11/17/2022] Open
Abstract
New series of three bidentate N, O donor type Schiff bases (L (1) )-(L (3) ) were prepared by using ethylene-1,2-diamine with 5-methyl furfural, 2-anisaldehyde, and 2-hydroxybenzaldehyde in an equimolar ratio. These ligands were further complexed with Co(II), Cu(II), Ni(II), and Zn(II) metals to produce their new metal complexes having an octahedral geometry. These compounds were characterized on the basis of their physical, spectral, and analytical data. Elemental analysis and spectral data of the uncomplexed ligands and their metal(II) complexes were found to be in good agreement with their structures, indicating high purity of all the compounds. All ligands and their metal complexes were screened for antimicrobial activity. The results of antimicrobial activity indicated that metal complexes have significantly higher activity than corresponding ligands. This higher activity might be due to chelation process which reduces the polarity of metal ion by coordinating with ligands.
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Affiliation(s)
- Sajjad Hussain Sumrra
- Department of Chemistry, Institute of Chemical and Biological Sciences, University of Gujrat, Gujrat 50700, Pakistan
| | - Muhammad Ibrahim
- Department of Applied Chemistry, Government College University, Faisalabad 38000, Pakistan
| | - Sabahat Ambreen
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Imran
- Department of Chemistry, Government Emerson College, Multan 60700, Pakistan
| | - Muhammad Danish
- Department of Chemistry, Institute of Chemical and Biological Sciences, University of Gujrat, Gujrat 50700, Pakistan
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Dash SP, Panda AK, Pasayat S, Dinda R, Biswas A, Tiekink ERT, Patil YP, Nethaji M, Kaminsky W, Mukhopadhyay S, Bhutia SK. Syntheses and structural investigation of some alkali metal ion-mediated LVVO2− (L2− = tridentate ONO ligands) species: DNA binding, photo-induced DNA cleavage and cytotoxic activities. Dalton Trans 2014; 43:10139-56. [DOI: 10.1039/c4dt00883a] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Liao X, Lu J, Ying P, Zhao P, Bai Y, Li W, Liu M. DNA binding, antitumor activities, and hydroxyl radical scavenging properties of novel oxovanadium(IV) complexes with substituted isoniazid. J Biol Inorg Chem 2013; 18:975-84. [DOI: 10.1007/s00775-013-1046-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 09/01/2013] [Indexed: 12/29/2022]
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Hanif M, Chohan ZH, Winum JY, Akhtar J. Metal-based carboxamide-derived compounds endowed with antibacterial and antifungal activity. J Enzyme Inhib Med Chem 2013; 29:517-26. [DOI: 10.3109/14756366.2013.815178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Muhammad Hanif
- Institute of Chemical Sciences, Bahauddin Zakariya University
MultanPakistan
| | - Zahid H. Chohan
- Institute of Chemical Sciences, Bahauddin Zakariya University
MultanPakistan
| | - Jean-Yves Winum
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS-UM1-UM2, Bâtiment de Recherche Max Mousseron, Ecole Nationale Supérieure de Chimie de Montpellier
Montpellier CedexFrance
| | - Javeed Akhtar
- Nanoscience & Materials Synthesis Group, Department of Physics, COMSATS CIIT IslamabadPakistan
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36
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Sumrra SH, Chohan ZH. Antibacterial and antifungal oxovanadium(IV) complexes of triazole-derived Schiff bases. Med Chem Res 2012. [DOI: 10.1007/s00044-012-0388-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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