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Ugwu DI, Conradie J. Metal complexes derived from bidentate ligands: Synthesis, catalytic and biological applications. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Copper(II) complexes with 4-(diethylamino)salicylaldehyde and α-diimines: Anticancer, antioxidant, antigenotoxic effects and interaction with DNA and albumins. J Inorg Biochem 2022; 235:111942. [DOI: 10.1016/j.jinorgbio.2022.111942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 06/26/2022] [Accepted: 07/20/2022] [Indexed: 11/23/2022]
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Kargar H, Fallah-Mehrjardi M, Behjatmanesh-Ardakani R, Tahir MN, Ashfaq M, Munawar KS. Synthesis, crystal structure determination, Hirshfeld surface analysis, spectral characterization, theoretical and computational studies of titanium(IV) Schiff base complex. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1972984] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hadi Kargar
- Department of Chemical Engineering, Faculty of Engineering, Ardakan University, Ardakan, Iran
| | | | | | | | - Muhammad Ashfaq
- Department of Physics, University of Sargodha, Punjab, Pakistan
| | - Khurram Shahzad Munawar
- Department of Chemistry, University of Sargodha, Punjab, Pakistan
- Department of Chemistry, University of Mianwali, Mianwali, Pakistan
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Rono CK, Chu WK, Darkwa J, Meyer D, Makhubela BCE. Triazolyl RuII, RhIII, OsII, and IrIII Complexes as Potential Anticancer Agents: Synthesis, Structure Elucidation, Cytotoxicity, and DNA Model Interaction Studies. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00440] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Charles K. Rono
- Department of Chemistry, University of Johannesburg, Kingsway Campus, 2006 Auckland Park, South Africa
| | - William K. Chu
- Department of Chemistry, University of Johannesburg, Kingsway Campus, 2006 Auckland Park, South Africa
| | - James Darkwa
- Department of Chemistry, University of Johannesburg, Kingsway Campus, 2006 Auckland Park, South Africa
| | - Debra Meyer
- Department of Biochemistry, University of Johannesburg, Kingsway Campus, 2006 Auckland Park, South Africa
| | - Banothile C. E. Makhubela
- Department of Chemistry, University of Johannesburg, Kingsway Campus, 2006 Auckland Park, South Africa
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Kumar N, Kaushal R, Chaudhary A, Arora S, Awasthi P. Titanium based mixed ligand complexes: Synthesis, spectroscopic and in vitro antiproliferative studies. INORG NANO-MET CHEM 2019. [DOI: 10.1080/24701556.2019.1569690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Nitesh Kumar
- Department of Chemistry, Govt Degree College Jukhala District Bilaspur, Himachal Pradesh -174033, India
- Department of Chemistry, National Institute of Technology, Hamirpur, Himachal Pradesh -177005, India
| | - Raj Kaushal
- Department of Chemistry, National Institute of Technology, Hamirpur, Himachal Pradesh -177005, India
| | - Ashun Chaudhary
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab -143005, India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab -143005, India
| | - Pamita Awasthi
- Department of Chemistry, National Institute of Technology, Hamirpur, Himachal Pradesh -177005, India
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Comparative In Vitro Binding Studies of TiCl2(dpme)2, Ti(ada)2(bzac)2, and TiCl2(bzac)(bpme) Titanium Complexes with Calf-Thymus DNA. Biochem Res Int 2015; 2015:836928. [PMID: 26843985 PMCID: PMC4710919 DOI: 10.1155/2015/836928] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 11/17/2022] Open
Abstract
The binding of TiCl2(dpme)2 (1), (dpme = 6,6'-dimethyl-2,2'-bipyridine), Ti(ada)2(bzac)2 (2), (ada = adamantylamine; bzac = benzoylacetone), and TiCl2(bzac)(bpme) (3), (bpme = 4,4'-dimethyl-2,2'-bipyrdine) with calf thymus (ct) DNA has been studied by UV-visible spectroscopy, thermal denaturation, and circular dichroism spectroscopy. In UV-visible study complexes 1, 2, and 3 showed red, blue, and red shifts, respectively, upon the addition of ct-DNA along with a significant hyperchromism. The intrinsic binding constants (K b ) calculated from UV-visible absorption studies were 2.3 × 10(3) M(-1), 3.3 × 10(3) M(-1) and, 7.1 × 10(3) M(-1) for complexes 1, 2, and 3, respectively. The change in melting temperature (ΔT m ) was calculated to be 2-3°C for each complex. Circular dichroism (CD) study showed blue shift for complex 2 and red shift for complexes 1 and 3 along with rise in molecular ellipticity upon the addition of complexes. Results suggest a binding mode of complex 2 different than 1 and 3.
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Ekennia AC, Onwudiwe DC, Olasunkanmi LO, Osowole AA, Ebenso EE. Synthesis, DFT Calculation, and Antimicrobial Studies of Novel Zn(II), Co(II), Cu(II), and Mn(II) Heteroleptic Complexes Containing Benzoylacetone and Dithiocarbamate. Bioinorg Chem Appl 2015; 2015:789063. [PMID: 26681931 PMCID: PMC4670642 DOI: 10.1155/2015/789063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/18/2015] [Indexed: 01/18/2023] Open
Abstract
Heteroleptic complexes of zinc(II), copper(II), manganese(II), and cobalt(II) of the types [MLL'(H2O)2]·nH2O and [MLL']·nH2O have been synthesized using sodium N-methyl-N-phenyldithiocarbamate (L) and benzoylacetone (L'). The metal complexes were characterized by elemental analysis, electrical conductance, magnetic susceptibility, infrared (IR), and UV-visible spectroscopic studies. The electrical conductance measurements revealed the nonelectrolytic nature of the synthesized complexes. The results of the elemental analyses, magnetic susceptibility measurements, and electronic spectra inferred that the Zn(II) complex adopted a four-coordinate geometry while the Co(II), Cu(II), and Mn(II) complexes assumed octahedral geometries. The IR spectra showed that the metal ions coordinated with the ligands via the S- and O-donor atoms. The geometry, electronic, and thermodynamic parameters of the complexes were obtained from density functional theory (DFT) calculations. The spin density distributions, relative strength of H-bonds, and thermodynamic parameters revealed that the order of stability of the metal complexes is Mn < Co < Cu > Zn. The agar diffusion methods were used to study the antimicrobial activity of the complexes against two Gram positive bacteria (S. aureus and S. pneumoniae), one Gram negative bacterium (E. coli), and two fungi organisms (A. niger and A. candida) and the complexes showed a broad spectrum of activities against the microbes.
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Affiliation(s)
- Anthony C. Ekennia
- Department of Chemistry, Federal University Ndufu-Alike, Ikwo, PMB 1010, Abakaliki, Ebonyi, Nigeria
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho, South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
| | - Lukman O. Olasunkanmi
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho, South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Department of Chemistry, Faculty of Science, Obafemi Awolowo University, Ile-Ife 220005, Nigeria
| | - Aderoju A. Osowole
- Inorganic Unit, Department of Chemistry, University of Ibadan, Ibadan, Nigeria
| | - Eno E. Ebenso
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho, South Africa
- Department of Chemistry, School of Mathematical and Physical Sciences, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
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