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Elbadawy HA, Abd‐El‐Nabey BA, Ali AE, Elsayed EH. The development of an unexpected Cu(I)‐pyrazolo pyrimidine‐based complex: Synthesis, spectroscopic characterizations, and biological activity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hemmat A. Elbadawy
- Chemistry Department, Faculty of Science Alexandria University Alexandria Egypt
| | | | - Ali El‐Dissouky Ali
- Chemistry Department, Faculty of Science Alexandria University Alexandria Egypt
| | - Eman Hassan Elsayed
- Chemistry Department, Faculty of Science Alexandria University Alexandria Egypt
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2
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El‐Sayed YS, Gaber M, Fahmy RM, Fathallah S. Characterization, theoretical computation, DNA‐binding, molecular docking, antibacterial and antioxidant activities of new metal complexes of (E)‐1‐((1H‐1,2,4‐triazol‐3‐yl)diazenyl)naphthalen‐2‐ol. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yusif S. El‐Sayed
- Chemistry Department, Faculty of Science Tanta University Tanta Egypt
| | - Mohammed Gaber
- Chemistry Department, Faculty of Science Tanta University Tanta Egypt
| | - Rowaida M. Fahmy
- Chemistry Department, Faculty of Science Tanta University Tanta Egypt
| | - Shaimaa Fathallah
- Chemistry Departments, Faculty of Science Taif University Saudi Arabia
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3
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Abouzayed FI, Abouel-Enein SA, Hammad AM. Synthesis of Some Novel Nanosized Chelates of Anchoring Bisazo Dye 5-[5-(4,6-Dioxo-2-thioxo-hexahydro-pyrimidin-5-ylazo)-naphthalen-1-ylazo]-2-mercapto-1 H-pyrimidine-4,6-dione and Their Applications as Antioxidant and Antitumor Agents. ACS OMEGA 2021; 6:27737-27754. [PMID: 34722974 PMCID: PMC8552356 DOI: 10.1021/acsomega.1c02989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Indexed: 06/13/2023]
Abstract
A novel bisazo 5-[5-(4,6-dioxo-2-thioxo-hexahydro-pyrimidin-5-ylazo)-naphthalen-1-ylazo]-2-mercapto-1H-pyrimidine-4,6-dione (H4L) ligand has been synthesized from diazotization coupling between naphthalene-1,5-diamine and 2-thiobarbituric acid. Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Fe(III) chelates were prepared. All prepared compounds were characterized by different techniques. The azo groups did not participate in chelation according to the infrared spectra, whereas the thioamide group did participate. The azo dye ligand coordinated with all metallic ions in a neutral-keto-thiol structure and behaved as a bi- and tridentate moiety. Zinc, manganese, and iron chelates had an octahedral structure, while nickel and cobalt chelates had a tetrahedral structure, but the copper chelate had a square pyramidal geometry. The thermal behavior of all prepared compounds was investigated and thermokinetic parameters were also discussed. X-ray diffraction (XRD) data reflected that Fe(III) and Zn(II) complexes were crystalline while the Cu(II) complex was amorphous. Calcination of the Fe(III) complex at 600 °C yielded a nanosized Fe2O3 crystalline phase, elucidated by XRD and transmission electron microscope. The novel azo dye and some of its chelates were tested against HepG-2. The Fe2O3 nanooxide showed remarkable activity against the HepG-2 cell line rather than its precursor Fe(III) complex. Co(II) had a higher antioxidant activity than the other investigated complexes. In both activities, the Cu(II) complex did not show any activity. Molecular modeling and some theoretical studies were validated, and the experimental results were interpreted.
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Affiliation(s)
- Fatma I. Abouzayed
- Chemistry
Department, Faculty of Science, Menoufia
University, Shebin
El-Kom 048, Egypt
| | | | - Amira M. Hammad
- Basic
Science Department, Higher Institute of
Engineering and Technology, Tanta 040, Egypt
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4
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Synthesis, characterization, coordination chemistry and biological activity of some pyrimidine complexes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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5
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Synthesis, structural identification, DNA interaction and biological studies of divalent metal(II) chelates of 1,2- ethenediamine Schiff base ligand. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128542] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Atlam FM, Awad MK, Gaber M, Fathalla S. New Zn (II) and Cd (II) complexes of 2,4‐dihydroxy‐5‐[(5‐mercapto‐1H‐1,2,4‐triazole‐3‐yl)diazenyl]benzaldehyde: Synthesis, structural characterization, molecular modeling and docking studies, DNA binding and biological activity. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Faten M. Atlam
- Theoretical Applied Chemistry Unit (TACU), Chemistry DepartmentFaculty of Science, Tanta University Tanta Egypt
| | - Mohamed K. Awad
- Theoretical Applied Chemistry Unit (TACU), Chemistry DepartmentFaculty of Science, Tanta University Tanta Egypt
| | - Mohamed Gaber
- Chemistry Department, Faculty of ScienceTanta University Tanta Egypt
| | - Shimaa Fathalla
- Chemistry Department, Faculty of ScienceTanta University Tanta Egypt
- Chemistry Department, Faculty of ScienceTaif University Saudi Arabia
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7
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The periodic table of urea derivative: small molecules of zinc(II) and nickel(II) of diverse antimicrobial and antiproliferative applications. Mol Divers 2019; 24:31-43. [PMID: 30798435 DOI: 10.1007/s11030-018-09909-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/13/2018] [Indexed: 01/13/2023]
Abstract
Two complexes of Zn(II) and Ni(II) ions with the urea derivative, 2-benzimidazolyl-urea (BZIMU), of formulae [ZnBZIMU)2(H2O)](NO3)2 (1) and [Ni(BZIMU)2(CH3CH2OH)2](NO3)2 (2) were synthesized and characterized by their melting point, elemental analysis, spectroscopic techniques (FTIR, UV-Vis and 1H-NMR), High-resolution mass spectroscopy (HRMS), molar conductivity and thermogravimetric analysis. The crystal structures of 1-2 were determined by X-ray diffraction analysis. The antiproliferative activity of 1-2 was tested in vitro against human adenocarcinoma cell lines: cervix (HeLa) and breast (MCF-7). Their toxicity was surveyed against normal human fetal lung fibroblast cells (MRC-5). The bioactivity mechanism of 1-2 and their related analogues of copper and silver metallodrugs are rationalized by the means of computations. The antimicrobial activity of 1-2 against Escherichia coli (E. coli) is also evaluated. The complexes [ZnBZIMU)2(H2O)](NO3)2 (1) and [Ni(BZIMU)2(CH3CH2OH)2](NO3)2 (2) (BZIMU= 2-Benzimidazolyl-urea), were tested in vitro against HeLa and MCF-7 cells. Their toxicity was surveyed against normal MRC-5 cells. The association of the microbiota with the antiproliferative activity of 1-2 was investigated against Escherichia coli.
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8
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Abouel‐Enein SA, Emam SM, Monir E. Coordination modes of multidentate azodye ligand derived from 4,4′‐methylenedianiline towards some transition metal ions: Synthesis, spectral characterization, thermal investigation and biological activity. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | - Sanaa M. Emam
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
| | - Eman Monir
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
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9
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El‐Ghamry HA, Fathalla SK, Gaber M. Synthesis, structural characterization and molecular modelling of bidentate azo dye metal complexes: DNA interaction to antimicrobial and anticancer activities. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4136] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hoda A. El‐Ghamry
- Chemistry Department, Faculty of ScienceTanta University Tanta Egypt
- Chemistry Department, Faculty of Applied ScienceUmm Al‐Qura University Saudi Arabia
| | | | - Mohamed Gaber
- Chemistry Department, Faculty of ScienceTanta University Tanta Egypt
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10
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Emam SM, Abouel-Enein SA, Abouzayed FI. Synthesis, spectral characterization, thermal studies and biological activity of (Z)-5-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)diazenyl)-6-hydroxy-2-mercaptopyrimidin-4(3H)-one and its metal complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sanaa M. Emam
- Chemistry Department, Faculty of Science; Menoufia University; Shebin El-Kom Egypt
| | | | - Fatma I. Abouzayed
- Chemistry Department, Faculty of Science; Menoufia University; Shebin El-Kom Egypt
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11
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Emam SM, AbouEl-Enein SAET, El-Seady SM. Coordination Behavior of N-Donor Schiff Base Derived from 2-Benzoylpyridine Toward Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Pd(II), and Cr(III) Metal Ions: Synthesis, Spectroscopic and Thermal Studies, and Biological Activity. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201600752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sanaa Moustafa Emam
- Chemistry Department, Faculty of Science; Menoufia University; Shebin El-Kom Egypt
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12
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Masoud MS, Ali AE, Elasala GS. Synthesis, spectral, computational and thermal analysis studies of metallocefotaxime antibiotics. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 149:363-377. [PMID: 25974669 DOI: 10.1016/j.saa.2015.04.061] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 04/18/2015] [Accepted: 04/21/2015] [Indexed: 06/04/2023]
Abstract
Cefotaxime metal complexes of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) and two mixed metals complexes of (Fe,Cu) and (Fe,Ni) were synthesized and characterized by elemental analysis, IR, electronic spectra, magnetic susceptibility and ESR spectra. The studies proved that cefotaxime may act as mono, bi, tri and tetra-dentate ligand through oxygen atoms of lactam carbonyl, carboxylic or amide carbonyl groups and nitrogen atom of thiazole ring. From the magnetic measurements and electronic spectral data, octahedral structures were proposed for all complexes. Quantum chemical methods have been performed for cefotaxime to calculate charges, bond lengths, bond angles, dihedral angles, electronegativity (χ), chemical potential (μ), global hardness (η), softness (σ) and the electrophilicity index (ω). The thermal decomposition of the prepared metals complexes was studied by TGA, DTA and DSC techniques. Thermogravimetric studies revealed the presence of lattice or coordinated water molecules in all the prepared complexes. The decomposition mechanisms were suggested. The thermal decomposition of the complexes ended with the formation of metal oxides and carbon residue as a final product except in case of Hg complex, sublimation occur at the temperature range 376.5-575.0 °C so, only carbon residue was produced during thermal decomposition. The orders of chemical reactions (n) were calculated via the peak symmetry method and the activation parameters were computed from the thermal decomposition data. The geometries of complexes may be converted from Oh to Td during the thermal decomposition steps.
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Affiliation(s)
- Mamdouh S Masoud
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Alaa E Ali
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt.
| | - Gehan S Elasala
- Chemistry Department, Faculty of Science, Damanhour University, Damanhour, Egypt
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13
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Masoud MS, Ali AE, Abd El-Kaway MY. Thermal properties of mercury(II) and palladium(II) purine and pyrimidine complexes. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 2014; 116:183-194. [DOI: 10.1007/s10973-013-3551-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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14
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Masoud MS, El-Marghany A, Orabi A, Ali AE, Sayed R. Spectral, coordination and thermal properties of 5-arylidene thiobarbituric acids. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 107:179-187. [PMID: 23416922 DOI: 10.1016/j.saa.2013.01.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 12/21/2012] [Accepted: 01/10/2013] [Indexed: 06/01/2023]
Abstract
Synthesis of 5-arylidine thiobarbituric acids containing different functional groups with variable electronic characters were described and their Co(2+), Ni(2+) and Cu(2+) complexes. The stereochemistry and mode of bonding of 5-(substituted benzylidine)-2-TBA complexes were achieved based on elemental analysis, spectral (UV-VIS, IR, (1)H NMR, MS), magnetic susceptibility and conductivity measurements. The ligands were of bidentate and tridentate bonding through S, N and O of pyrimidine nucleolus. All complexes were of octahedral configuration. The thermal data of the complexes pointed to their stability. The mechanism of the thermal decomposition is discussed. The thermodynamic parameters of the dissociation steps were evaluated and discussed.
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Affiliation(s)
- Mamdouh S Masoud
- Chemistry Department, Faculty of Science, Alexandria University, Egypt
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15
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Gaber M, El-Sayed YS, El-Baradie KY, Fahmy RM. Complex formation, thermal behavior and stability competition between Cu(II) ion and Cu(0) nanoparticles with some new azo dyes. Antioxidant and in vitro cytotoxic activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 107:359-370. [PMID: 23434564 DOI: 10.1016/j.saa.2013.01.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 12/25/2012] [Accepted: 01/11/2013] [Indexed: 06/01/2023]
Abstract
Four triazole and thiadiazole-based azo chromophores namely [(E)-4-((1H-1,2,4-triazol-3-yl)diazenyl)benzene-1,3-diol.(HL(1)), (E)-4-((5-(methylthio)-1H-1,2,4-triazol-3-yl)diazenyl)benzene-1,3-diol.(HL(2)), (E)-4-((1,3,4-thiadiazol-2-yl)diazenyl)benzene-1,3-diol.(HL(3)) and (E)-4-((5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl)benzene-1,3-diol.(HL(4))] were synthesized and characterized by elemental analyses, IR, UV-Vis as well as mass spectroscopy. Cu(II) complexes of the investigated azo dyes have been synthesized and characterized by elemental analyses, IR, electronic and ESR spectra, magnetic susceptibility and thermogravimetric analyses. The bond lengths and bond angles have been calculated to confirm the geometry of the ligands and their Cu(II) complexes. The mode of interaction of the azodyes to copper nanoparticles was described as coordination mode of charged dye molecules on the colloidal Cu(0) surface through anchoring OH(-) group. The apparent association constants of the colloidal copper nanoparticles azodye complexes in solution were evaluated using the spectral method and compared with the formation constant of the Cu(II) azo complexes. The antitumor and antioxidant activities of the synthesized azo dyes and their Cu(II) azo complexes have been evaluated.
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Affiliation(s)
- M Gaber
- Chemistry Department, Faculty of Science, Tanta University, 31527 Tanta, Egypt.
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16
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Emam SM, AbouEl-Enein SA, El-Saied FA, Alshater SY. Synthesis and characterization of some bi, tri and tetravalent transition metal complexes of N'-(furan-2-yl-methylene)-2-(p-tolylamino)acetohydrazide HL1 and N'-(thiophen-2-yl-methylene)-2-(p-tolylamino)acetohydrazide HL2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 92:96-104. [PMID: 22402580 DOI: 10.1016/j.saa.2012.02.045] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 02/09/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
The tetradentate Schiff bases hydrazone ligands HL(1), HL(2) and their metal complexes have been prepared and characterized by analytical, spectral (IR, UV-vis, (1)H NMR and ESR), molar conductivity, magnetic and TGA measurements. The results show that all the metal complexes are non-electrolytes, except (2, 10 and 20) which have ionic nature. The ligands coordinate in keto-neutral form and act as bidentate or tridentate for all metal complexes, except complexes (4 and 12). The ligands react as monobasic tetradentate and tridentate for complexes (4 and 12), respectively. Octahedral/tetrahedral Co(II) and Ni(II), octahedral/square planar Cu(II), and octahedral Mn(II), Fe(III), Cr(III), Ru(III), Hf(IV) and Zr(IV)O geometries were proposed. The ESR spectra of copper complexes (12 and 14) indicate d(x2-y2) ground state with covalent bond character. The thermal decomposition and the types of crystallized water for some metal complexes were studied. The studied metal complexes are very weakly active against the tested microorganisms.
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Affiliation(s)
- S M Emam
- Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom, Egypt
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17
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Shaban NZ, Masoud MS, Mawlawi MA, Awad D, Sadek OM. Effect of some pyrimidine compounds on rat brain monoamine oxidase-B in vitro. J Physiol Biochem 2012; 68:475-84. [PMID: 22467201 DOI: 10.1007/s13105-012-0160-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 03/13/2012] [Indexed: 10/28/2022]
Abstract
The effects of some pyrimidine compounds (PCs) including barbituric acid (BA) 5,5-diethyl barbituric acid (DEBA), 2-thiobarbituric acid (TBA), violuric acid (VA), 2-thiouracil (TU), and 6-amino-2-thiouracil (ATU) on the activity of rat brain monoamine oxidase-B (MAO-B) were investigated. The results revealed that MAO-B was activated by BA, DEBA, TBA, TU, and ATU, and the activation was structural, concentration, and time dependent. However, MAO-B was inhibited by VA in a noncompetitive and irreversible manner with an enzyme-inhibitor dissociation constant (K (i) value) of 32 nM and IC(50) equals to 19 nM. All the studied PCs changed both the optimum pH and temperature of MAO-B.
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Affiliation(s)
- Nadia Z Shaban
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
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