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Singh A, Shiv K, Singh R, Bharty MK, Manna PP, Prasad LB. Antiproliferative activity of Fe(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes of dithiocarbamate: synthesis, structural characterization, and thermal studies. Dalton Trans 2024; 53:1196-1208. [PMID: 38108492 DOI: 10.1039/d3dt03724j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Five new metal complexes of Fe(II) (1), Co(II) (2), Ni(II) (3), Cu(II) (4), and Zn(II) (5), derived from an N-cyclohexyl N-(3,4-dimethoxybenzyl) dithiocarbamate ligand, have been successfully synthesized and fully characterized by different analytical techniques i.e. elemental analyses, FT-IR, UV-Vis, 1H & 13C NMR, and HRMS. Furthermore, complexes 4 and 5 have been characterized by the SC-XRD technique. Complex 4 adopts a distorted square planar geometry around the Cu(II) center while complex 5 adopts a distorted tetrahedral geometry around the Zn(II) center. In addition, an eight-membered symmetric chair-like metallacycle ring containing two Zn(II) centers has also been found in complex 5. XRD data also show that complexes 4 and 5 are stabilized by various weak intermolecular hydrogen bonding interactions. The course of the thermal degradation of metal complexes 1-5 has been examined by TG-DTA data which revealed that metal sulphide formed as the final residue. Complexes 1-5 demonstrated concentration-dependent cytotoxicity and growth inhibition of DL tumor cells. Among the compounds, complexes 1, 4, and 5 showed significant cytotoxicity and induced a loss in the viability of DL cells. Therapy with complexes 1, 4, and 5 protects DL tumor-bearing animals from exacerbation of the disease, increases lifespan, and significantly improves the histopathological parameters of the vascularized organ, including preventing metastasis. Overall cytotoxicity assay results indicate that all complexes have remarkable cytotoxic potential in comparison with the free ligand.
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Affiliation(s)
- Anupam Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Kunal Shiv
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Ranjeet Singh
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - M K Bharty
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Partha Pratim Manna
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Lal Bahadur Prasad
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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2
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Souza WA, Demarqui FM, de Almeida AM, Silva RTC, Alves DA, Araújo TG, Resende JALC, Pavan FR, Santos HFD, de Almeida MV, Guerra W. Synthesis and in vitro evaluation of antimycobacterial activity of two palladium(II) complexes based on 5-alkyl-1,3,4-oxadiazol-2(3H)-thione derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Paca AM, Singh M, Ajibade PA. Synthesis, characterization and in vitro anticancer studies of Ru(III) dithiocarbamate complexes. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2145472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Athandwe M. Paca
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - Moganavelli Singh
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
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4
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Ali MS, El-Saied FA, Shakdofa MME, Karnik S, Jaragh-Alhadad LA. Synthesis and characterization of thiosemicarbazone metal complexes: crystal structure, and antiproliferation activity against breast (MCF7) and lung (A549) cancers. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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Yang Q, Olaifa K, Andrew FP, Ajibade PA, Ajunwa OM, Marsili E. Assessment of physiological and electrochemical effects of a repurposed zinc dithiocarbamate complex on Acinetobacter baumannii biofilms. Sci Rep 2022; 12:11701. [PMID: 35810245 PMCID: PMC9271062 DOI: 10.1038/s41598-022-16047-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/04/2022] [Indexed: 11/09/2022] Open
Abstract
Acinetobacter baumannii is an infectious agent of global proportion and concern, partly due to its proficiency in development of antibiotic resistance phenotypes and biofilm formation. Dithiocarbamates (DTC) have been identified as possible alternatives to the current antimicrobials. We report here the evaluation of several DTC-metal complexes against A. baumannii planktonic cells and biofilms. Among the DTC-metal complexes and DTCs tested, ZnL1 (N-methyl-1-phenyldithiocarbamato-S,S' Zn(II)), originally designed as an antitumor agent, is effective against biofilm forming A. baumannii. A MIC value of 12.5 µM, comparable to that of Gentamicin (5 µM) was measured for planktonic cells in tryptic soy broth. Spectroscopy, microscopy and biochemical analyses reveal cell membrane degradation and leakage after treatment with ZnL1. Bioelectrochemical analyses show that ZnL1 reduces biofilm formation and decreases extracellular respiration of pre-formed biofilms, as corroborated by microscopic analyses. Due to the affinity of Zn to cells and the metal chelating nature of L1 ligand, we hypothesize ZnL1 could alter metalloprotein functions in the membranes of A. baumannii cells, leading to altered redox balance. Results indicate that the DTC-Zn metal complex is an effective antimicrobial agent against early A. baumannii biofilms under laboratory conditions.
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Affiliation(s)
- Qing Yang
- Biofilm Laboratory, Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan, 01000, Kazakhstan
| | - Kayode Olaifa
- Biofilm Laboratory, Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan, 01000, Kazakhstan
| | - Fartisincha P Andrew
- Department of Science Laboratory Technology, Modibbo Adama University, Yola, Nigeria
| | - Peter A Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Obinna M Ajunwa
- Biofilm Laboratory, Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan, 01000, Kazakhstan.,Department of Microbiology, Modibbo Adama University, Yola, Nigeria
| | - Enrico Marsili
- Biofilm Laboratory, Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, 53 Kabanbay Batyr Avenue, Nur-Sultan, 01000, Kazakhstan.
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6
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Pellei M, Del Bello F, Porchia M, Santini C. Zinc coordination complexes as anticancer agents. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214088] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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7
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Synthesis and Characterization of Manganese Dithiocarbamate Complexes: New Evidence of Dioxygen Activation. Molecules 2021; 26:molecules26195954. [PMID: 34641499 PMCID: PMC8512220 DOI: 10.3390/molecules26195954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 09/27/2021] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Metal dithiocarbamate compounds have long been the subject of research due to their ease of formation, excellent properties and potential applications. However, manganese complexes with dithiocarbamates, to our knowledge, have never been used for medical imaging applications. With the aim of developing a new class of mononuclear manganese(II)-based agents for molecular imaging applications, we performed a specific investigation into the synthesis of mononuclear bis-substituted Mn(II) complexes with dithiocarbamate ligands. (2) Methods: Synthesis in either open or inert atmosphere at different Mn(II) to diethyldithiocarbamate molar ratios were performed and the products characterized by IR, EA, ESI-MS and XRD analysis. (3) Results: We found that only under oxygen-free atmospheric conditions the Mn(II) complex MnL2, where L = diethyldithiocarbamate ligand, is obtained, which was further observed to react with dioxygen in the solid state to form the intermediate superoxo Mn(III) complex [MnL2(η2-O2)]. The existence of the superoxo complex was revealed by mass spectroscopy, and this species was interpreted as an intermediate step in the reaction that led the bis-substituted Mn(II) complex, MnL2, to transform into the tris-substituted Mn(III) complex, MnL3. A similar result was found with the ligand L’ (= bis(N-ethoxyethyl)dithiocarbamate). (4) Conclusions: We found that in open atmosphere and in aqueous solution, only manganese(III) diethyldithiocarbamate complexes can be prepared. We report here a new example of a small-molecule Mn(II) complex that efficiently activates dioxygen in the solid state through the formation of an intermediate superoxide adduct.
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Ajibade PA, Andrew FP. Synthesis, characterization, and in vitro anticancer studies of chlorido(triphenylphosphine)ruthenium(II) dithiocarbamate complexes. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1925671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Fartisincha P. Andrew
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
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Paca AM, Ajibade PA, Andrew FP, Nundkumar N, Singh M. Synthesis, X-ray crystal structures and anticancer studies of four Pd(II) dithiocarbamate complexes. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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10
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Abstract
The incorporation of dithiocarbamate ligands in the preparation of metal complexes is largely prompted by the versatility of this molecule. Fascinating coordination chemistry can be obtained from the study of such metal complexes ranging from their preparation, the solid-state properties, solution behavior as well as their applications as bioactive materials and luminescent compounds, to name a few. In this overview, the dithiocarbamate complexes of platinum-group elements form the focus of the discussion. The structural aspects of these complexes will be discussed based upon the intriguing findings obtained from their solid- (crystallographic) and solution-state (NMR) studies. At the end of this review, the applications of platinum-group metal complexes will be discussed.
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Synthesis, characterization and in vitro screening for anticancer potential of Mn(II), Co(II), Cu(II), Zn(II), and Pt(II) methoxyphenyl dithiocarbamato complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Ajibade PA, Sikakane BM, Oluwalana AE, Paca AM, Singh M. Synthesis, crystal structure and in vitro anticancer studies of bis(dibenzyldithiocarbamato)Zn(II). J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1887482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - Berlinda M. Sikakane
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - Abimbola E. Oluwalana
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - Athandwe M. Paca
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, South Africa
| | - Moganavelli Singh
- School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
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13
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Souza WA, de Almeida AM, Pivatto M, de Almeida MV, Guedes GP, Resende JAL, Guerra W. Crystal structure and spectroscopy properties of new PtII complexes containing 5-alkyl-1,3,4-oxadiazol-2-thione derivatives. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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14
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Lakshmanan P, Thirumaran S, Ciattini S. Synthesis, spectral and structural studies on NiS2PN and NiS2P2 chromophores and use of Ni(II) dithiocarbamate to synthesize nickel sulfide and nickel oxide for photodegradation of dyes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128704] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Ajibade PA, Oluwalana AE, Andrew FP. Morphological Studies, Photocatalytic Activity, and Electrochemistry of Platinum Disulfide Nanoparticles from Bis(morpholinyl-4-carbodithioato)-platinum(II). ACS OMEGA 2020; 5:27142-27153. [PMID: 33134674 PMCID: PMC7594005 DOI: 10.1021/acsomega.0c03063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/31/2020] [Indexed: 05/08/2023]
Abstract
Bis(morpholinyl-4-carbodithioato)-platinum(II) was synthesized and characterized using spectroscopic techniques and single-crystal X-ray crystallography. The Pt(II) complex crystallized in a monoclinic space group P21/n with a Pt(II) ion located on an inversion center coordinated two morpholinyl dithiocarbamate ligands that are coplanar to form a slightly distorted square planar geometry around the Pt(II) ion. The complex was thermolyzed at 120, 180, and 240 °C to prepare PtS2 nanoparticles. Powder X-ray diffraction patterns confirmed the hexagonal crystalline phase for the as-prepared PtS2 nanoparticles irrespective of thermolysis temperature. Bead-like shaped PtS2-120 nanoparticles with a particle size in the range of 12.46-64.97 nm were formed at 120 °C, while PtS2-180 prepared at 180 °C is quasi-spherical in shape with particles in the range of 24.30-46.87 nm. The PtS2-240 obtained at 240 °C is spherical with particles in the range of 11.45-46.85 nm. The broad emission maxima of the as-prepared PtS2 nanoparticles are ascribed to the particles' broad size distributions. The photocatalytic degradation of methylene blue by the PtS2 nanoparticles shows a maximum efficiency of 87% for PtS2-240 after 360 min. The effects of photocatalytic dosage, irradiation time, pH medium, and scavengers were also evaluated. Cyclic voltammetry of the PtS2 nanoparticles showed a reversible redox reaction, while the electrochemistry of the as-prepared PtS2 indicates that the electron transfer process is diffusion-controlled.
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16
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Solomane N, Ajibade PA. Synthesis and crystal structure of bis(thiomorpholinyldithiocarbamato)Cu(II) complex and its use as precursor for CuS nanoparticles photocatalyst for the degradation of organic dyes. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1822838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nolwazi Solomane
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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17
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Synthesis, Crystal Structures and Anticancer Studies of Morpholinyldithiocarbamato Cu(II) and Zn(II) Complexes. Molecules 2020; 25:molecules25163584. [PMID: 32781741 PMCID: PMC7464096 DOI: 10.3390/molecules25163584] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/19/2022] Open
Abstract
Cu(II) and Zn(II) morpholinyldithiocarbamato complexes, formulated as [Cu(MphDTC)2] and [Zn(μ-MphDTC)2(MphDTC)2], where MphDTC is morpholinyldithiocarbamate were synthesized and characterized by elemental analysis, spectroscopic techniques and single-crystal X-ray crystallography. The molecular structure of the Cu(II) complex revealed a mononuclear compound in which the Cu(II) ion was bonded to two morpholinyl dithiocarbamate ligands to form a four-coordinate distorted square planar geometry. The molecular structure of the Zn(II) complex was revealed to be dinuclear, and each metal ion was bonded to two morpholinyl dithiocarbamate bidentate anions, one acting as chelating ligand, the other as a bridge between the two Zn(II) ions. The anticancer activity of the morpholinyldithiocarbamate ligand, Cu(II) and Zn(II) complexes were evaluated against renal (TK10), melanoma (UACC62) and breast (MCF7) cancer cells by a Sulforhodamine B (SRB) assay. Morpholinyldithiocarbamate was more active than the standard drug parthenolide against renal and breast cancer cell lines, and [Zn(μ-MphDTC)2(MphDTC)2] was the most active complex against breast cancer. The copper(II) complex had a comparable activity with the standard against renal and breast cancer cell lines but showed an enhanced potency against melanoma when compared to parthenolide.
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18
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Tella AC, Shamle NJ, Obaleye JA, Whitwood AC, Bourne SA, Ajibade PA. Synthesis, characterization, crystal structures and electrochemical properties of heteroleptic Cu(II), Mn(II) and Zn(II) complexes of metronidazole with benzoic acid derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Ajibade PA, Solomane N. Synthesis and crystal structure of bis(thiomorpholinyldithiocarbamato) Zn(II): structural, optical, and photocatalytic studies of ZnS nanoparticles from the complex. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1768248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu Natal, Scottsville, South Africa
| | - Nolwazi Solomane
- School of Chemistry and Physics, University of KwaZulu Natal, Scottsville, South Africa
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20
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Ajibade PA, Fatokun AA, Andrew FP. Synthesis, characterization and anti-cancer studies of Mn(II), Cu(II), Zn(II) and Pt(II) dithiocarbamate complexes - crystal structures of the Cu(II) and Pt(II) complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119431] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Zaeva AS, Ivanov MA, Gerasimenko AV, Ivanov AV, Antzutkin ON. Dialkyldithiocarbamate platinum(II) complexes of [Pt(S2CNR2)2] (R = iso-C3H7, iso-C4H9): Preparation, 13C CP-MAS NMR, molecular structure, supramolecular self-assembly and thermal behaviour. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Abstract
Platinum-group (PG) complexes have been used as antibacterial and anticancer agents since the discovery of cisplatin. The science world still requires improvement on these complexes because of multidrug and antineoplastic resistances. This review observes discoverers and history of these platinum-group metals (PGMs), as well as their beneficial applications. The focus of this study was biological applications of PGMs in relation to human health. Sandwich and half-sandwich PGM coordination compounds and their metal nanoparticles give improved results for biological activities by enhancing efficient delivery of both antibacterial and anticancer drugs, as well as luminescent bioimaging (biomarkers) for biological identifications.
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Cui Y, Wu L, Yue W, Lian F, Qu J. Two polypyridyl-chelating nickel(II) and copper(II) complexes: Synthesis, structural characterization and in vitro anticancer activity in osteogenic sarcoma. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Mphahlele LLR, Ajibade PA. Synthesis and crystal structure of bis(morpholino dithiocarbamato) Cd(II) complex and its use as precursor for CdS quantum dots using different capping agents. J Sulphur Chem 2019. [DOI: 10.1080/17415993.2019.1637876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lebogang L. R. Mphahlele
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
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25
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Andrew FP, Ajibade PA. Synthesis, characterization, and electrochemical studies of Co(II, III) dithiocarbamate complexes. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1596263] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Fartisincha P. Andrew
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
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Zhu M, Song D, Liu N, Wang K, Su J, Xiong M, Zhang X, Xu Y, Gao E. Isomeric Effect on the anticancer Behavior of two Zinc (II) complexes based on 3,5‐bis(1‐imidazoly) pyridine: Experimental and Theoretical Approach. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Mingchang Zhu
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Da Song
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Ning Liu
- Liaoning Institute for Food Control (Liaoning Institute of Pharmaceutical Research) Shenyang 110015 China
| | - Kehua Wang
- School of Chemistry and Life ScienceAnshan Normal University Anshan China
| | - Junqi Su
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Meng Xiong
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Xi Zhang
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Yuang Xu
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
| | - Enjun Gao
- The key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province, Laboratory of Coordination ChemistryShenyang University of Chemical Technology Shenyang 110142 China
- School of Chemical EngineeringUniversity of Science and Technology Liaoning Anshan 114051 China
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Solomane N, Ajibade PA, Omondi B. Crystal structure of sodium morpholine-4-carbodithioate, (C 5H 12NNaO 3S 2). Z KRIST-NEW CRYST ST 2019. [DOI: 10.1515/ncrs-2018-0512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Abstract
C5H12NNaO3S2, monoclinic, P21/c (no. 14), a = 28.8222(3) Å, b = 5.6782(3) Å, c = 12.3810(9) Å, β = 102.074(2)°, V = 1987.43(17) Å3, Z = 8, R
gt(F) = 0.0269, wR
ref(F
2) = 0.0591, T = 100(2) K.
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Affiliation(s)
- Nolwazi Solomane
- University of KwaZulu-Natal, School of Chemistry and Physics, PO Box X01, Pietermaritzburg Campus, Scottsville , Pietermaritzburg 3209 , South Africa
| | - Peter A. Ajibade
- University of KwaZulu-Natal, School of Chemistry and Physics, PO Box X01, Pietermaritzburg Campus, Scottsville , Pietermaritzburg 3209 , South Africa
| | - Bernard Omondi
- University of KwaZulu-Natal, School of Chemistry and Physics, PO Box X01, Pietermaritzburg Campus, Scottsville , Pietermaritzburg 3209 , South Africa
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Dithiocarbamates: Challenges, Control, and Approaches to Excellent Yield, Characterization, and Their Biological Applications. Bioinorg Chem Appl 2019; 2019:8260496. [PMID: 30881441 PMCID: PMC6381578 DOI: 10.1155/2019/8260496] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 11/26/2018] [Indexed: 12/17/2022] Open
Abstract
Progresses made in previous researches on syntheses of dithiocarbamates led to increase in further researches. This paper reviews concisely the challenges experienced during the synthesis of dithiocarbamate and mechanisms to overcome them in order to obtain accurate results. Aspects of its precursor's uses to synthesize adducts, nanoparticles, and nanocomposites are reported. Some common characterization techniques used for the synthesized products were assessed. Biological applications are also reported.
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Effect of Temperature and Capping Agents on Structural and Optical Properties of Tin Sulphide Nanocrystals. JOURNAL OF NANOTECHNOLOGY 2019. [DOI: 10.1155/2019/8235816] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
SnS nanocrystals were synthesized using bis(phenylpiperazine dithiocarbamate)tin(II) in oleic acid (OA) and octadecylamine (ODA) at three different temperatures (150, 190, and 230°C). XRD diffraction pattern confirms that OASnS and ODASnS nanoparticles are in the orthorhombic phase and the type of capping agent used affects the crystallinity. Transmission electron microscopy (TEM) images shows spherically shaped nanocrystals for oleic acid capped SnS (OASnS) while octadecylamine (ODASnS) are cubic. Monodispersed SnS of size range 10.67–17.74 nm was obtained at 150°C for OASnS while the biggest-sized nanocrystals were obtained at 230°C for ODASnS. Temperature and capping agents tuned the crystallite sizes and shapes of the as-prepared nanocrystals. Electron dispersive X-ray spectroscopy indicates the formation of tin sulphide with the presence of Sn and S peaks in the nanocrystals. Flowery and agglomerated spherical-like morphology were observed for ODASnS and OASnS nanocrystals, respectively, using a SEM (scanning electron microscope). Direct electronic band gaps of the synthesized SnS nanocrystals are 1.71–1.95 eV and 1.93–2.81 eV for OASnS and ODASnS nanocrystals, respectively.
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Ajibade PA, Paca AM. Tris(dithiocarbamato)iron(III) complexes as precursors for iron sulfide nanocrystals and iron sulfide-hydroxyethyl cellulose composites. J Sulphur Chem 2018. [DOI: 10.1080/17415993.2018.1521411] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Peter A. Ajibade
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
| | - Athandwe M. Paca
- School of Chemistry and Physics, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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