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Synthesis, spectral, DFT, intrinsic constant of DNA binding and antioxidant activity of vanadyl (IV)2+ complexes of a symmetrical bis thiosemicarbazides. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Yousef T. Structural, optical, morphology characterization and DFT studies of nano sized Cu(II) complexes containing schiff base using green synthesis. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128180] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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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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El-Ghamry HA, Gaber M, Farghaly TA. Synthesis, Structural Characterization, Molecular Modeling and DNA Binding Ability of CoII, NiII, CuII, ZnII, PdII and CdII Complexes of Benzocycloheptenone Thiosemicarbazone Ligand. Mini Rev Med Chem 2019; 19:1068-1079. [DOI: 10.2174/1389557519666190301143322] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 01/09/2019] [Accepted: 02/22/2019] [Indexed: 12/27/2022]
Abstract
Background & Objective:
Six novel complexes of transition metal namely,
[CoLCl2(H2O)2]0.5H2O, [NiLCl2(H2O)2]0.5H2O, [CuLCl2]0.5H2O, [ZnLCl2], [PdLCl2]H2O and
[CdLCl2]H2O, where L is benzocycloheptenone thiosemicarbazone ligand, have been obtained. The
confirmation of the structures of the obtained metal chelates depends on the different spectral and
physicochemical techniques including CHN analysis, infrared spectra, molar conductivity measurement,
UV-vis, thermogravimetric analysis and magnetic moment. The infrared spectral results ascertained
that the ligand behaved as neutral bidentate connecting the metal centers via N and S atoms of
C=N and C=S groups, respectively.
Methods:
The UV-Vis, molar conductivity and magnetic susceptibility results implied that the geometrical
structures of the metal chelates are octahedral for Co(II) & Ni(II) complexes, tetrahedral for
Zn(II) & Cd(II) complexes and square planar for Cu(II) & Pd(II) complexes which have been confirmed
by molecular modeling studies.
Conclusion:
Moreover, the mode of interaction between some chosen metal complexes towards SSDNA
has been thoughtful by UV-Vis spectra and viscosity measurements. The value of the intrinsic
binding constant (Kb) for the examined compounds has been found to be lower than the binding affinity
of the classical intercalator ethedium bromide. Also, the viscosity measurements of the complexes
proved that they bind to DNA, most likely, by a non-intercalative mode like H-bonding or electrostatic
interactions.
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Affiliation(s)
- Hoda A. El-Ghamry
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed Gaber
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Yousef T, Abu El-Reash G, El-Gammal O, Sharaa B. Characterization, quantum, antibacterial, antifungal and antioxidant studies on Hg(II) and Cd(II) complexes of allyl and ethyl thiosemicarbazides derived from 2-aminothiazole-4-yl acetohydrazide. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2015.09.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- T.A. Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt
- Department of Chemistry, Science College, Al Imam Mohammad Bin Saud Islamic University, (IMSIU), P.O Box 90950, Riyadh 11623, Saudi Arabia
| | - G.M. Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, P.O. Box 70, Mansoura, Egypt
| | - O.A. El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, P.O. Box 70, Mansoura, Egypt
| | - B.M. Sharaa
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt
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Yousef T, Alduaij O, Ahmed SF, Abu El-Reash G, El-Gammal O. Structural, DFT and biological studies on Cr(III) complexes of semi and thiosemicarbazide ligands derived from diketo hydrazide. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.07.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Elseman AM, Shalan AE, Rashad MM, Hassan AM, Ibrahim NM, Nassar AM. Easily attainable new approach to mass yield ferrocenyl Schiff base and different metal complexes of ferrocenyl Schiff base through convenient ultrasonication-solvothermal method. J PHYS ORG CHEM 2016. [DOI: 10.1002/poc.3639] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ahmed Mourtada Elseman
- Electronic and Magnetic Division, Advanced Materials Department; Central Metallurgical Research & Development Institute (CMRDI); Helwan Cairo Egypt
| | - Ahmed Esmail Shalan
- Electronic and Magnetic Division, Advanced Materials Department; Central Metallurgical Research & Development Institute (CMRDI); Helwan Cairo Egypt
- Research Institute for Electronic Science; Hokkaido University; N21, W10, Kita-ku 001-0021 Sapporo Japan
| | - Mohamed M. Rashad
- Electronic and Magnetic Division, Advanced Materials Department; Central Metallurgical Research & Development Institute (CMRDI); Helwan Cairo Egypt
| | - Ali M. Hassan
- Chemistry Department, Faculty of Science; Al-Azhar University; Nasr City Cairo Egypt
| | - Nabila M. Ibrahim
- National Research Centre; Department of Organometallic & Organometalloid Chemistry; El Buhouth St, Dokki, Giza Cairo Egypt
| | - Amr M. Nassar
- Chemistry Department, Faculty of Science; Al-Azhar University; Nasr City Cairo Egypt
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Yousef T, Alduaij O, Ahmed SF, Abu El-Reash G, El-Gammal O. Semi- and thiosemicarbazide Mn(II) complexes: Characterization, DFT and biological studies. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.04.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yousef TA, Ahmed SF, El-Gammal OA, Abu El-Reash GM. Structural, spectral, thermal and biological studies on (Z)-N-benzoyl-N'-(2-oxo-2-(phenylamino)acetyl)carbamohydrazonothioic acid (H₂PABT) and its Cd(II), Hg(II), Zn(II) and U(VI)O₂²⁺ complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:228-239. [PMID: 25813180 DOI: 10.1016/j.saa.2015.01.128] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 01/16/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
A new metal complexes formed by the reaction of (Z)-N-benzoyl-N'-(2-oxo-2-(phenylamino)acetyl)carbamohydrazonothioic acid (H2PABT) and Cd(II), Hg(II), Zn(II) and U(VI)O2(2+) ions. The isolated complexes were prepared and characterized by conventional techniques. The IR data revealed that the ligand behaves as mononegative tridentate in Zn(II) and U(VI)O2(2+) complexes also, binegative tetradentate on Cd(II) and Hg(II) complexes. On the basis of magnetic and electronic spectral data an octahedral geometry for the U(VI)O2(2+) complex, a tetrahedral structure for the Cd(II), Zn(II) and Hg(II) complexes have been proposed. The IR spectrum of ligand which determined experimentally is compared with those obtained theoretically from DFT calculations. Also, the bond lengths, bond angles, HOMO, LUMO and dipole moments have been calculated. The calculated HOMO-LUMO energy gap reveals that charge transfer occurs within the ligand molecules. The calculated values of binding energies indicates the stability of complexes is higher that of ligand. Also, the kinetic and thermodynamic parameters for the different thermal degradation steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. Moreover, the ligand and its complexes were screened against Bacillus subtilis as Gram positive bacteria and Escherichia coli Gram negative bacteria using the inhibitory zone diameter. Also the antitumor activities of the ligand and its complexes have been evaluated against liver (HePG2) and breast (MCF-7) cancer cells. Out of all the synthesized compounds, [Hg2(PABT)Cl2(H2O)2] and [(UO2)(HPABT)(OAc)(H2O)] complexes showed high antibacterial activity with 55.5% while H2PABT showed the best cytotoxic effect on liver and breast cancer cells with IC50 2.10 and 5.91 of cytotoxicity respectively.
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Affiliation(s)
- T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt; Department of Chemistry, Science College, Al Imam Mohammad Bin Saud Islamic University, (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
| | - Sara F Ahmed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - O A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
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Yousef TA, El-Gammal OA, Ahmed SF, Abu El-Reash GM. Synthesis, biological and comparative DFT studies on Ni(II) complexes of NO and NOS donor ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:690-703. [PMID: 25129624 DOI: 10.1016/j.saa.2014.07.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/25/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
Three new NOS donor ligands have been prepared by addition ethanolic suspension of 2-hydrazino-2-oxo-N-phenyl-acetamide to phenyl isocyanate (H2PAPS), phenyl isothiocyanate (H2PAPT) and benzoyl isothiocyanate (H2PABT). The Ni(II) complexes prepared from the chloride salt and characterized by conventional techniques. The isolated complexes were assigned the formulaes, [Ni2(PAPS)(H2O)2](H2O)2, [Ni(H2PAPT)Cl2(H2O)](H2O)2 and [(Ni)2(HPABT)2Cl2(H2O)2], respectively. The IR spectra of complexes shows that H2PAPS behaves as a binegative pentadentate via both CO of hydrazide moiety in keto and enol form, enolized CO of cyanate moiety and the CN (azomethine) groups of enolization. H2PAPT behaves as neutral tridentate via both CO of hydrazide moiety and CN (azomethine) group due to SH formation and finally H2PABT behaves as mononegative tetradentate via CO and enolized CO of hydrazide moiety, CO of benzoyl moiety and C=S groups. The experimental IR spectra of ligands are compared with those obtained theoretically from DFT calculations. Also, the bond lengths, bond angles, HOMO (Highest Occupied Molecular Orbitals), LUMO (Lowest Unoccupied Molecular Orbital) and dipole moments have been calculated. The calculated HOMO-LUMO energy gap reveals that charge transfer occurs within the molecule. The theoretical values of binding energies indicate the higher stability of complexes than of ligands. Also, the kinetic and thermodynamic parameters for the different thermal degradation steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. The antibacterial activities were also tested against B. Subtilis and E. coli bacteria. The free ligands showed a higher antibacterial effect than their Ni(II) complexes. The antitumor activities of the Ligands and their Ni(II) complexes have been evaluated against liver (HePG2) and breast (MCF-7) cancer cells. All ligands were found to display cytotoxicity that are better than that of Fluorouracil (5-FU), while Ni(II) complexes show low activity.
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Affiliation(s)
- T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt; Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - O A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Sara F Ahmed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
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Yousef TA, Abu El-Reash GM, El-Rakhawy ER. Structural, spectral, thermal and biological studies on (E)-2-(1-(4-hydroxyphenyl)ethylidene)-N-(pyridin-2-yl)hydrazinecarbothioamide and its metal complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:568-578. [PMID: 24992916 DOI: 10.1016/j.saa.2014.05.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 05/02/2014] [Accepted: 05/09/2014] [Indexed: 06/03/2023]
Abstract
Schiff base complexes of Mn(II), Co(II), Ni(II), Cu(II), Cd(II), Hg(II) and U(VI)O2 with (E)-2-(1-(4-hydroxyphenyl)ethylidene)-N-(pyridin-2-yl)hydrazinecarbothioamide (H2PHAT) were synthesized and characterized by different physicochemical methods, elemental analysis, (UV-vis, IR and (1)H NMR spectra) and thermal analysis (TG and DTG) techniques. Spectral data showed that H2PHAT behaves as a NS bidentate ligand through both thione sulphur or thiol sulphur and the nitrogen of the pyridine ring or azomethine nitrogen, NSN tridentate ligand through both thione sulphur or thiol sulphur, the nitrogen of the pyridine ring and azomethine nitrogen. ESR spectrum data for Cu(II) solid complex confirms the square planar state is the most fitted one for the coordinated structure. The kinetic parameters were determined for each thermal degradation stage of the complexes using Coats-Redfern and Horowitz-Metzger methods. From modeling studies, the bond length, bond angle, HOMO, LUMO and dipole moment had been calculated to confirm the geometry of the ligand and their investigated complexes. The biological activity was tested against DNA showing that Cd(II), U(VI)O2, Ni(II) and Mn(II) complexes had powerful and complete degradation effect. Also, the ligand and its complexes were screened against Bacillus thuringiensis as Gram-positive bacteria and Pseudomonas aeuroginosa as Gram-negative bacteria using the inhibitory zone diameter.
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Affiliation(s)
- T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - E R El-Rakhawy
- Department of Chemistry, Faculty of Arts and Science, Northern Border University, Saudi Arabia
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Structural, DFT and biological studies on Co(II) complexes of semi and thiosemicarbazide ligands derived from diketo hydrazide. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.07.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Nandy M, Hughes DL, Rosair GM, Singh RKB, Mitra S. Synthesis, characterization, crystal structure, and DNA binding of two copper(II)–hydrazone complexes. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.964697] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - Georgina M. Rosair
- Department of Chemistry, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK
| | | | - Samiran Mitra
- Department of Chemistry, Jadavpur University, Kolkata, India
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Yousef T, Abu El-Reash G, El-Gammal O, Ahmed SF. Structural, DFT and biological studies on Cu(II) complexes of semi and thiosemicarbazide ligands derived from diketo hydrazide. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.07.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Yousef TA, Abu El-Reash GM, Al-Jahdali M, El-Rakhawy EBR. Synthesis, spectral characterization and biological evaluation of Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes with thiosemicarbazone ending by pyrazole and pyridyl rings. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 129:163-172. [PMID: 24727176 DOI: 10.1016/j.saa.2014.02.184] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 02/23/2014] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
Here we present the synthesis of the new Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes with chelating ligand (Z)-(2-((1,3-diphenyl-1H-pyrazol-4-yl)methylene) hydrazinyl)(pyridin-2-ylamino)methanethiol. All the complexes were characterized by elemental analysis, IR, (1)H NMR, UV-vis, magnetic susceptibility measurements and EPR spectral studies. IR spectra of complexes showed that the ligand behaves as NN neutral bidentate, NSN mononegative tridentate and NSNN mononegative tetradentate. The electronic spectra and the magnetic measurements suggested the octahedral geometry for all complexes as well as the EPR confirmed the tetragonal distorted octahedral for Cu(II) complex. Cd(II) complex showed the highest inhibitory antioxidant activity either using ABTS method. The SOD-like activity exhibited those Cd(II) and Zn(II) complexes have strong antioxidative properties. We tested the synthesized compounds for antitumor activity and showed that the ability to kill liver (HePG2) and breast (MCF-7) cancer cells definitely.
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Affiliation(s)
- T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt; Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - M Al-Jahdali
- Department of Chemistry, Faculty of Science, King AbdulAziz University, Saudi Arabia
| | - El-Bastawesy R El-Rakhawy
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt; Department of Chemistry, Faculty of Arts and Science, Northern Border University, Saudi Arabia
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El-Gammal OA, Abu El-Reash GM, El-Gamil MM. Structural, spectral, pH-metric and biological studies on mercury (II), cadmium (II) and binuclear zinc (II) complexes of NS donor thiosemicarbazide ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 123:59-70. [PMID: 24389001 DOI: 10.1016/j.saa.2013.12.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/18/2013] [Accepted: 12/05/2013] [Indexed: 06/03/2023]
Abstract
Hg(II), Cd(II) and binuclear Zn(II) complexes derived from the tetradentate N(1)-ethyl-N(2)-(pyridine-2-yl) hydrazine-1, 2-bis (carbothioamide) ligand (H2PET) have been prepared and characterized by conventional techniques. The isolated complexes acquired the formulas, [Hg(HPET)(H2O)2Cl]⋅H2O, [Cd(HPET)Cl] and [Zn2(HPET)(PET)(OAc)]⋅H2O, respectively. IR data revealed that the ligand behaves as monobasic tridentate through (CN)py, (C-S) and new (NC)azomethine(∗) groups in both Hg(II) and Cd(II) complexes. In the binuclear Zn(II) complex, the behavior of ligand contains two types, where H2PET acts as dibasic tetradentate via (CN)py, both deprotonated (C-SH) and the new (NC)azomethine(∗) towards two Zn atoms and also it acts as monobasic tridentate via (CS), deprotonated (C-SH) and (CN)py towards the same Zn atoms. An octahedral geometry for Hg(II) complex and tetrahedral geometry for both Cd(II) and Zn(II) complexes were proposed. The bond lengths, bond angles, HOMO, LUMO and dipole moment have been calculated by DFT using materials studio program to confirm the geometry of ligand and its metal complexes. The association constant of the ligand and the stability constants of its complexes as well as the thermodynamic parameters were calculated by pH metric measurements at 298, 308 and 318K in 50% dioxane-water mixture, respectively. Also, the kinetic and thermodynamic parameters for the different thermal degradation steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. Moreover, the anti-oxidant (using ABTS and DPPH methods), anti-hemolytic, and cytotoxic activities of the compounds have been tested.
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Affiliation(s)
- Ola A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, P.O. Box 70, Mansoura, Egypt.
| | - Gaber M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, P.O. Box 70, Mansoura, Egypt
| | - Mohammed M El-Gamil
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal Organization, Ministry of Justice, Egypt
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Saha NC, Pradhan R, Das M, Khatun N, Mitra D, Samanta A, Slawin AM, Jana AD, Klanke J, Rentschler E. Synthesis, characterization, X-ray crystallography, and antimicrobial activities of Ni(II) and Cu(II) complexes with a salicylaldehyde-based thiosemicarbazone ligand. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.880426] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Rajesh Pradhan
- Department of Chemistry, University of Kalyani, Nadia, India
| | - Mousumi Das
- Division of Microbiology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Nasima Khatun
- Division of Microbiology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Debmalya Mitra
- Division of Microbiology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Amalesh Samanta
- Division of Microbiology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | | | | | - Julia Klanke
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany
| | - Eva Rentschler
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University, Mainz, Germany
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Yousef T, Abu El-Reash G, Al-Jahdali M, El-Rakhawy EBR. Structural and biological evaluation of some metal complexes of vanillin-4N-(2-pyridyl) thiosemicarbazone. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.08.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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El-Gammal OA, Elmorsy EA, Sherif YE. Evaluation of the anti-inflammatory and analgesic effects of Cu(II) and Zn(II) complexes derived from 2-(naphthalen-1-yloxy)-N'-(1-(pyridin-2-1)ethylidene) acetohydrazide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:332-339. [PMID: 24200647 DOI: 10.1016/j.saa.2013.09.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 09/11/2013] [Accepted: 09/26/2013] [Indexed: 06/02/2023]
Abstract
New Cu(II) and Zn(II) complexes of 2-(naphthalen-1-yloxy)-N'-(1-(pyridin-2-yl)ethylidene) acetohydrazide (HA2PNA) have been prepared and characterized by elemental analyses, spectral (IR, UV-visible, ESR and 1H NMR) as well as magnetic and thermal measurements. According to the data, the complexes assigned the formulae: [Cu(A2PNA)2]H2O and [Zn(A2PNA)(OAc)(H2O)], respectively. IR data revealed that the ligand acts as before ONN and after morever ONN mononegative tridentate via deprotonated carbonyl oxygen (CO) and both (CN)imine and (CN)pyridine nitrogen atoms. The bond lengths, bond angles, HOMO, LUMO, dipole moment and charges on the atoms have been calculated by using density functional theory (DFT) at B3LYP level with 6-31G and 6-31G(d,p) basis sets to confirm the geometry of the ligand and the investigated complexes. Also, the kinetic parameters were determined for each thermal degradation stage of the complexes using Coats-Redfern and Horowitz-Metzger methods. Moreover, the complexes have been tested for anti-inflammatory and analgesic activity in rat model of collagen adjuvant arthritis and compared with piroxicam. All the compounds showed a significant anti-inflammatory and analgesic effect versus piroxicam.
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Affiliation(s)
- Ola A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O. Box 70, Mansoura, Egypt.
| | - Elsayed A Elmorsy
- Pharmacology Department, Faculty of Medicine - North Jeddah Branch, King Abd El-Aziz University, Kingdom of Saudi Arabia; Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Yousery E Sherif
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Kingdom of Saudi Arabia
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Structural, spectral analysis and DNA studies of heterocyclic thiosemicarbazone ligand and its Cr(III), Fe(III), Co(II) Hg(II), and U(VI) complexes. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.03.060] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Sun YG, Li KL, Xu ZH, Lv TY, Wang SJ, You LX, Ding F. Synthesis, characterization, and interaction with DNA of Cu(II) and Zn(II) complexes with 2,2′-bipyridyl-6,6′-dicarboxylic acid. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.806655] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ya-Guang Sun
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Ke-Long Li
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Zhen-He Xu
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Tian-Yi Lv
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Shu-Ju Wang
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Li-Xin You
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
| | - Fu Ding
- a Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology , Shenyang , P.R. China
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Abu El-Reash GM, El-Gammal OA, El-Gamil MM. Structural, spectral, DFT, pH-metric and biological studies on Cr(III), Mn(II) and Fe(III) complexes of dithione heterocyclic thiosemicarbazide ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:383-393. [PMID: 23274266 DOI: 10.1016/j.saa.2012.11.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/10/2012] [Accepted: 11/16/2012] [Indexed: 06/01/2023]
Abstract
Cr(III), Mn(II) and Fe(III) complexes derived from the quadruple potential dithione heterocyclic thiosemicarbazide ligand (H(2)PET) have been prepared and characterized by conventional techniques. The isolated complexes were assigned the formulae, [Cr(HPET)(H(2)O)(2)Cl(2)]·3H(2)O, [Mn(HPET)(H(2)O)Cl](2) and [Fe(HPET)(H(2)O)(2)Cl(2)]·H(2)O, respectively. IR data revealed that the ligand behaves as monobasic bidentate through (C=N)(py) and (C-S) groups in both Cr(III) and Fe(III) complexes. In the binuclear Mn(II) complex, H(2)PET acts as NSNS monobasic tetradente via (C=N)(py), (C-S), (C=S) and the new azomethine, (N=C)(*) groups. An octahedral geometry for all complexes was proposed. The bond lengths, bond angles, HOMO, LUMO and dipole moment have been calculated by DFT using materials studio program to confirm the geometry of H(2)PET and its metal complexes. The ligand association constant and the stability constants of its complexes in addition to the thermodynamic parameters were calculated from pH metrically at 298, 308 and 318°K in 50% dioxane-water mixture, respectively. Also, the kinetic and thermodynamic parameters for the different thermal degradation steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. Moreover, the anti-oxidant (using ABTS and DPPH methods), anti-hemolytic, and cytotoxic activities of the compounds have been tested.
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Affiliation(s)
- Gaber M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, PO Box 70, Mansoura, Egypt.
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Yousef T, Abu El-Reash G, El-Gammal O, Bedier R. Synthesis, characterization, optical band gap, in vitro antimicrobial activity and DNA cleavage studies of some metal complexes of pyridyl thiosemicarbazone. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.10.058] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yousef T, Abu El-Reash G, El-Gammal O, Bedier R. Co(II), Cu(II), Cd(II), Fe(III) and U(VI) complexes containing a NSNO donor ligand: Synthesis, characterization, optical band gap, in vitro antimicrobial and DNA cleavage studies. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2012.06.050] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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El-Gammal OA, Abu El-Reash GM, El-Gamil MM. Binuclear copper(II), cobalt(II) and nickel(II) complexes of N1-ethyl-N2-(pyridin-2-yl) hydrazine-1,2-bis(carbothioamide): structural, spectral, pH-metric and biological studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:444-455. [PMID: 22728235 DOI: 10.1016/j.saa.2012.05.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 05/17/2012] [Indexed: 06/01/2023]
Abstract
Binuclear Cu(II), Co(II) and Ni(II) complexes derived from N(1)-ethyl-N(2)-(pyridin-2-yl) hydrazine-1,2-bis(carbothioamide) (H(2)PET) have been prepared and characterized by elemental analysis, spectral (IR, UV-vis, EI mass, ESR and (1)HNMR) and magnetic measurements. The isolated complexes assigned the general formula, [M(HPET)(H(2)O)(n)Cl](2)·xH(2)O where M=Cu(II), Co(II) and Ni(II), n=2, 1, 0 and x=0, 0.5 and 0, respectively. IR data revealed that the ligand behaves as monobasic tridentate through (CN)(py), (C-S) and new azomethine, (NC)(∗) groups in the Co(II) complex but in Cu(II) complex, the ligand coordinate via both (CS) groups, one of them in thiol form as well as the new azomethine group. In Ni(II) complex, H(2)PET acts as NSNS monobasic tetradente via (CN)(py), (C-S), (CS) and the new azomethine, (NC)(∗) groups. An octahedral geometry is proposed for all complexes. pH- metric titration was carried out in 50% dioxane-water mixture at 298, 308 and 318 °K, respectively and the dissociation constant of the ligand as well as the stability constants of its complexes were evaluated. Also the kinetic and thermodynamic parameters for the different thermal decomposition steps of the complexes were determined by Coats-Redfern and Horowitz-Metzger methods. Moreover, the anti-oxidant, anti-hemolytic, and cytotoxic activities of the compounds have been tested.
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Affiliation(s)
- O A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, P.O. Box 70, Mansoura, Egypt
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Yousef T, Abu El-Reash G, El Morshedy R. Quantum chemical calculations, experimental investigations and DNA studies on (E)-2-((3-hydroxynaphthalen-2-yl)methylene)-N-(pyridin-2-yl)hydrazinecarbothioamide and its Mn(II), Ni(II), Cu(II), Zn(II) and Cd(II) complexes. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.041] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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