Showing papers in "Journal of Coordination Chemistry in 2019"
TL;DR: In this paper, a review highlights the synthetic strategy of multi-metallic complexes using metal-salen complexes, which have been widely used in inorganic chemistry to synthesize polynuclear complexes.
Abstract: Metal-salen complexes have been widely used in inorganic chemistry to synthesize polynuclear complexes. This review highlights the synthetic strategy of multi-metallic complexes using metal...
30 citations
TL;DR: Three Schiff base ligands, L1H, L2H, and L3H, were defined as follows: (2-((benzo[d]thiazol-6-ylimino)methyl)-4,6-diiodophenol), (2.
Abstract: Three Schiff base ligands, L1H = (2-((benzo[d]thiazol-6-ylimino)methyl)-6-nitrophenol), L2H = (2-((benzo[d]thiazol-6-ylimino)methyl)-4,6-diiodophenol), L3H = (2-((benzo[d]thiazol-6-ylimino)methyl)-...
28 citations
TL;DR: Haiduc et al. as discussed by the authors presented a review of structures with five-membered nitrogen heterocycles, which is a follow-up of a previous article (I. Haiduc, J. Coord. Chem. 2019).
Abstract: The review is a follow-up of a previous article (I. Haiduc, J. Coord. Chem. (2019). DOI: 10.1080/00958972.2019.1641702), which introduced structures with five-membered nitrogen heterocycles...
26 citations
TL;DR: Halloysite nanoclay, Hal, was amine functionalized and subsequently reacted with 2,4,6-trichloro-1,3,5-triazine, TCT, and EDA, to provide multinitrogen containing functionality on...
Abstract: Halloysite nanoclay, Hal, was amine-functionalized and subsequently reacted with 2,4,6-trichloro-1,3,5-triazine, TCT, and ethylenediamine, EDA, to provide multinitrogen containing functionality on ...
23 citations
TL;DR: In this paper, the bioactive azo-dye ligand 1,5-dimethyl-4-[(3-methyl-5-oxo-1-phenyl-4, 5-dihydro-1H-pyrazol-4-yl)diazenyl]-2.
Abstract: In the present investigation, the bioactive azo-dye ligand 1,5-dimethyl-4-[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)diazenyl]-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (L) and its t...
22 citations
TL;DR: This study addresses the radiochemistry of radiopharmaceuticals based on 99mTc as well as the coordination chemistry of these compounds.
Abstract: Radiopharmacy is a pharmaceutical specialty responsible for the development and production of radiopharmaceuticals. Radiopharmaceuticals are radioactive drugs, which can be used in two dist...
21 citations
TL;DR: In this article, a tetrahedral dibromomanganese (II) complex was isolated and characterized by single crystal X-ray diffraction and its Hirshfeld surface was inspected.
Abstract: Tetrahedral dibromomanganese(II) complexes having formulas [MnBr2{O = PR(NMe2)2}2] (R = NMe2 (1); Ph (2)) were isolated and characterized by single crystal X-ray diffraction. [MnBr2{O = P(NMe2)3}2] (1) crystallizes in the monoclinic C2/c space group. The asymmetric unit contains one half of the molecule with the Mn(II) atom in a distorted tetrahedral coordination. The intermolecular network of this coordination compound was studied by generating and inspecting its Hirshfeld surface, while the weak intramolecular hydrogen bonds were investigated computationally by AIM analysis in the gas phase and in solution. The Hirshfeld analysis was extended to the related [MnBr2{O = PPh(NMe2)2}2] complex (2).
21 citations
TL;DR: In this paper, new palladium complexes were efficiently synthesized from the reaction of benzimidazolium salts 2a-e, potassium carbonate (K2CO3) and palladium chloride (PdCl2) in pyridine.
Abstract: New palladium complexes were efficiently synthesized from the reaction of benzimidazolium salts 2a–e, potassium carbonate (K2CO3) and palladium chloride (PdCl2) in pyridine (for 3a–e). The catalyti...
20 citations
TL;DR: In this paper, the downsizing effect of a family of Hofmann-type metal organic frameworks exhibiting Spin-Crossover Phenomenon (SCO) at high temperatures is discussed.
Abstract: This review is focused on the downsizing effect of a family of Hofmann-type Metal Organic Frameworks (MOFs) exhibiting Spin-Crossover Phenomenon (SCO) at high temperatures. Their nanoscale importan...
19 citations
TL;DR: A comprehensive overview on the coordination chemistry of violuric acid, C4H3N3O4 (= H3Vio), and its derivatives can be found in this paper.
Abstract: This review provides a comprehensive overview on the coordination chemistry of violuric acid, C4H3N3O4 (= H3Vio), and its derivatives (e.g. 1,3-diorganovioluric acids and thiovioluric acid). The mo...
18 citations
TL;DR: In this paper, the authors designed and developed new complexes and their metal-based nanodrug (registered as Casiopeinas® for cancer) with a low toxicity, high efficiency, and high selectivity.
Abstract: The present study was conducted to design and develop new complexes and their metal-based nanodrug (registered as Casiopeinas® for cancer) with a low toxicity, high efficiency, and high selectivity. First, complexes ([Cu(TTA)(bpy)2] (1) and [Cu(TTA)2(en)] (2) (TTA = 4,4,4-trifluoro-1-(2-furyl)-1,3-butanedione) were synthesized and characterized by X-ray diffraction studies, CHN analysis, conductivity measurements, FT-IR and UV-vis spectroscopy. Second, nanoparticles (NPs) of 3 and 4 with the average size of 63.04 and 85.39 nm were prepared with ultrasound. Scanning electron microscopy patterns of 3 and 4 showed irregular spherical and nanorod particles with spongy surface. Furthermore, the anticancer properties of compounds and nano-compounds were studied in MKN-45 cell line. Then, apoptosis studies were carried out utilizing AO/EB staining methods. Finally, to confirm the in vitro experimental data, the theoretical study was carried out by molecular docking studies. The results of DNA docking ana...
TL;DR: A hybrid system involving graphene oxide (GO), magnetic oxide (Fe3O4), acrylamide and dicyandiamide was prepared via amine functionalization of GO/Fe 3O4 by means of covalent bonding with ac...
Abstract: A hybrid system involving graphene oxide (GO), magnetic oxide (Fe3O4), acrylamide and dicyandiamide was prepared via amine functionalization of GO/Fe3O4 by means of covalent bonding with ac...
TL;DR: In this paper, the synthesis and spectral characterizations of [CdLCl2] (1) and[CdL(NO3)2(H2O)] (2) pincer complexes of the s-triazine core ligand (L), 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-methoxy-1,3-5-Triazine), are presented.
Abstract: The synthesis and spectral characterizations of [CdLCl2] (1) and [CdL(NO3)2(H2O)] (2) pincer complexes of the s-triazine core ligand (L), 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-methoxy-1,3,5-triazine), are presented. Complexes 1 and 2 have five- and eight-coordinated Cd(II) ions, respectively, where L acts as a neutral tridentate N-chelate. The coordination sphere is completed by two coordinated Cl– anions in 1 and with one water molecule and two bidentate nitrate anions in 2. The neutral complex units of 1 and 2 are packed by the polar Cl…H and O…H hydrogen bonds, respectively. Using Hirshfeld analysis, the percentages of these contacts are 24.5% and ∼36.8%, respectively. Both complexes showed some anion-π stacking interactions. Thermogravimetric analysis showed that 1 is thermally more stable than 2. The orbital-orbital interactions included in the Cd-Cl, Cd-O, and Cd-N coordinate bonds were analyzed using DFT calculations. The calculated NMR results correlated very well with the experimental data.
TL;DR: Three new Schiff base complexes with bidentate N-donor heterocyclic co-ligands, 2,2'-bipyridine (1), 1,10-phenanthroline (2), and 2,9-dimethyl-1,10phenanthusline (3), were synthesized in this paper.
Abstract: Three new Cu(II) Schiff base complexes with bidentate N-donor heterocyclic co-ligands, 2,2'-bipyridine (1), 1,10-phenanthroline (2), and 2,9-dimethyl-1,10-phenanthroline (3), were synthesiz...
TL;DR: In this article, four new bis-imidazolium salts 3-6 and their di- and polynuclear silver(I)−N-heterocyclic carbene (Ag(I)-NHC) complexes 7-10 were synthesized and characterized by using various analytical tools.
Abstract: Four new bis-imidazolium salts 3–6 and their di- and polynuclear silver(I)–N-heterocyclic carbene (Ag(I)–NHC) complexes 7–10 were synthesized and characterized by using various analytical t...
TL;DR: In this paper, the catalytic activities for hydrogen (H2) evolution of cobalt 5,10,15-trisphenyl (phenyl)corrole (1) and 5, 10,15,tris(4-nitrophenyl) (2) in homogeneous system was examined from acetic acid and water.
Abstract: Catalytic activities for hydrogen (H2) evolution of cobalt 5,10,15-tris(phenyl)corrole (1) and 5,10,15-tris(4-nitrophenyl)corrole (2) (in homogeneous system was examined from acetic acid and water....
TL;DR: In this paper, four complexes having the formula [Zn(L)2] [L1 = (C18H20NS2], N-(4-isopropyl-benzyl)-(benezyl)-dithiocarbamate], [L2 = (c10H12NS2]-), N-(benzylon)-(ethyl)-ditiocaramate, [L3 = (19H22ONS2]-
Abstract: Four complexes having the formula [Zn(L)2] [L1 = (C18H20NS2–), N-(4-isopropyl-benzyl)-(benzyl)-dithiocarbamate], [L2 = (C10H12NS2–), N-(benzyl)-(ethyl)-dithiocarbamate], [L3 = (C19H22ONS2–)...
TL;DR: In this article, the spectral and biological applications of metal complexes containing chalcone and its derivatives as ligands are discussed, as well as their applications in chemical and medical applications.
Abstract: This review presents an outline of the spectral and biological applications of metal complexes containing chalcone and its derivatives as ligands. Chemotherapy was more or less completely based on ...
TL;DR: Diaqua oxalato strontium(II) complex [Sr(C2O4)(H2O)2] was prepared via a precipitation reaction in this article.
Abstract: Diaqua oxalato strontium(II) complex [Sr(C2O4)(H2O)2] was prepared via a precipitation reaction. Thermal treatment of the as-synthesized precursor at 550 °C resulted in formation of strontium carbo...
TL;DR: Iodides and polyiodides of scandium complexes containing urea (Ur) and acetamide (AA) have been synthesized and characterized by elemental analysis, IR spectroscopy, and X-ray diffraction as discussed by the authors.
Abstract: Iodides and polyiodides of scandium complexes containing urea (Ur) and acetamide (AA) have been synthesized and characterized by elemental analysis, IR spectroscopy, and X-ray diffraction. The trigonal crystals of [Sc(L)6]I3 (L = Ur, AA) and monoclinic crystals of [Sc(Ur)6][I3]3 are isomorphous to the earlier reported [M(Ur)6]I3 (M = Ti, V, Cr, Fe) and [Ln(Ur)6][I3]3 (Ln = Yb, Lu), respectively. Therefore, scandium in its complexes with urea and iodine links rows of 3d transition elements and rare-earth elements; it continues the tendency of formation of polyiodides with different structures from isomorphous iodides, which was found for other metal(III) urea complexes. In the orthorhombic crystals of [Sc(AA)6][I5][I3]I, the first example of the M(III) acetamide polyiodide, metal ions in complex cations are located at the centers of distorted octahedral arrangements of oxygen atoms of acetamide; iodide ions are not coordinated. The crystals of [Sc(AA)6][I5][I3]I contain V-shaped pentaiodide, linear...
TL;DR: Cobalt(II) complexes of N-methyl phenyl, 1-phenylpiperazyl, and morpholinyl dithiocarbamates have been synthesized and characterized by UV-visible, FTIR, 1H-, 13C-NMR, and mass spectrometry as discussed by the authors.
Abstract: Cobalt(II) complexes of N-methyl phenyl, 1-phenylpiperazyl, and morpholinyl dithiocarbamates have been synthesized and characterized by UV–Visible, FTIR, 1H-, 13C-NMR, and mass spectrometry...
TL;DR: In this article, a one-pot synthetic route incorporating anthracene and azomethine (HC═N) units acting as signaling and binding units, respectively, was used to synthesize Chemosensor 1.
Abstract: Chemosensor 1 has been synthesized via a one-pot synthetic route incorporating anthracene and azomethine (HC═N—) units acting as signaling and binding units, respectively. Chemosensor 1 off...
TL;DR: The study of molecular docking and RHF/PM6 method confirm the experimental results with respect to the mechanism of binding and demonstrated that the binding of the complex to HSA caused strong fluorescence quenching of HSA through staticQuenching mechanism.
Abstract: A new platinum(IV) complex, [Pt(en)(Cl)2(Pregabalin)2], containing the drug pregabalin was synthesized and characterized by elemental analysis, FT-IR, 1H NMR, mass spectrum, thermogravimetric analy...
TL;DR: Magnetically recoverable MgFe2O4@SiO2-PrNH2/Pd/bimenthonoxime nanoparticles were prepared and characterized by SEM, EDX, TEM, XRD, XPS, ICP, VSM and FT-IR as mentioned in this paper.
Abstract: Magnetically recoverable MgFe2O4@SiO2-PrNH2/Pd/bimenthonoxime nanoparticles were prepared and characterized by SEM, EDX, TEM, XRD, XPS, ICP, VSM and FT-IR. The nanocatalyst was used for Suzuki cros...
TL;DR: A number of alternatives were made to overcome numerous life-threatening infectious diseases by metal-based anticancer compounds, such as thiosemicarbazones and their metal complexes as discussed by the authors.
Abstract: A number of alternatives were made to overcome numerous life-threatening infectious diseases by metal-based anticancer compounds. At present, thiosemicarbazones and their metal complexes ha...
TL;DR: In this paper, the authors focused on application of ZnO-NPs@bentonite, as a catalyst, for disposal of different pollutants such as dyes, phenol compounds and Cr(VI) ions from water.
Abstract: The present work focused on application of ZnO-NPs@bentonite, as a catalyst, for disposal of different pollutants such as dyes, phenol compounds and Cr(VI) ions from water. The prepared ZnO...
TL;DR: Three copper(II), zinc(II) and vanadium(V) complexes, [CuL(HL)]ClO4 (1), [ZnL2] (2) and [VO2L] (3), where L is the anionic form of 3-methyl-N′-(1-(pyridin-2-yl)ethylidene)benzohydrazide (HL), were constructed in this paper.
Abstract: Three copper(II), zinc(II), and vanadium(V) complexes, [CuL(HL)]ClO4 (1), [ZnL2] (2) and [VO2L] (3), where L is the anionic form of 3-methyl-N′-(1-(pyridin-2-yl)ethylidene)benzohydrazide (HL), were...
TL;DR: In this article, the reaction of copper(II) chloride or bromide with 2-chloro-3bromopyridine or 2,3-dichloropyrine was shown to generate a family of compounds of the general formula L2CuX2 (1, 4).
Abstract: Reaction of copper(II) chloride or bromide with 2-chloro-3-bromopyridine or 2,3-dichloropyridine generates a family of compounds of the general formula L2CuX2 (1–4). X-ray crystallography shows tha...
TL;DR: Graphene oxide was prepared using modified Hummers method, MnV13/GO composite was prepared by solution blending method, and MnV 13/GO/PANI composite catalyst was prepared with interfacial method as mentioned in this paper.
Abstract: Graphene oxide was prepared by modified Hummers method, MnV13/GO composite was prepared by solution blending method, and MnV13/GO/PANI composite catalyst was prepared by interfacial method. The cat...
TL;DR: In this paper, a novel monobasic tridentate ONS donor ligand was synthesized from the condensation reaction of chromone-3-carboxaldehyde with S-benzyldithiocarbazate (SBDTC).
Abstract: Novel monobasic tridentate ONS donor ligand (HL) was synthesized from the condensation reaction of chromone-3-carboxaldehyde with S-benzyldithiocarbazate (SBDTC). Reaction of the ligand with the me...