WebAug 26, 2024 · Gallium complexes with thiosemicarbazone ligands have been extensively investigated [25,26], ... (III) bis- and mono-tridentate complexes (1.881–2.004 Å and 1.961–2.180 Å for the Ga-O and Ga-N distances, respectively) . There are no significant structural changes (in either the bond lengths or in the angles) in the ligands upon … WebJan 1, 2013 · Bis (thiosemicarbazone) 2,6-diacetylpyridine Platinum (II) complexes Thiol function X-ray diffraction Thiosemicarbazones (R 1 R 2 C N NH C (S) NR 3 R 4) are an important and versatile type of ligands due to the potential donor atoms that they possess, among which sulfur is of paramount importance in the metal–ligand linkage.
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WebThere is increasing interest in the use of lipophilic copper (Cu)-containing complexes to combat bacterial infections. In this work, we showed that Cu complexes with … WebNov 9, 1999 · Three bis (thiosemicarbazones) complexes were active against the growth of human lung MB9812, KB nasopharynx, epidermoid A431, glioma UM‐86, colon SW480, ovary 1‐A9, breast MCK‐7, and osteosarcoma Saos‐2 and their metabolic effects in the tumor cell were more focused on a single synthetic pathway. 24
WebAug 15, 2006 · The mode of bonding and the basicity of the H 4 L 1 ligand are also influenced by the counteranion, the pH of the reaction medium, the working conditions and the oxidation state of copper. The reactivity of the binuclear Cu II complexes of both H 4 L 1 and H 4 L 2 towards 1,10-phenanthroline (Phen), 2,2′-bipyridyl (Bpy), N,N,N′,N′ … WebS. Özdemir Department of Food Processing, Technical Science Vocational School, Mersin University, Yenisehir, Mersin, Turkey
WebJul 27, 2024 · Six tetradentate bis-thiosemicarbazone ligands formed by condensation of pyruvaldehyde with 4-(aryl) thiosmicarbazides and their Ru(II) complexes are reported. … WebAug 16, 2006 · Systematic formation of bi-or oligonuclear complexes through ligand design has successfully used functionalised mono-thiosemicarbazone ligands, such as the 2 …
WebApr 9, 2024 · In this work, we report solvent-induced complexation properties of a new N2S2 tetradentate bis-thiosemicarbazone ligand (H2LI), prepared by the condensation of 4-phenylthiosemicarbazide with bis ...
WebPd 2+, Pt 2+, Ni 2+ and Cu 2+ complexes of N-ethyl-2-(2-hydroxybenzylidene) hydrazine-1-carbothioamide (H 2 L) have been prepared and fully characterized via SCXRD, FTIR, CHNS, UV–Vis, GC-MS, TGA and NMR. Ni 2+, Pd 2+ and Pt 2+ complexes were used as novel single precursors for the preparation of noble metal/metal oxide nanoparticles via … barbu doréWebor even hexadentate ligands, as well as multinuclear complexes and coordination poly-mers [1–9]. Modifications to the thiosemicarbazone substituents can also result in dramatic changes to the structural, physical and biological properties of the metal complexes [10,11]. Hybrid ligands containing thiosemicarbazone groups and additional donor ... barbudos baseballWebJun 15, 2024 · A 1,4,7,10-tetraazacyclododecane (cyclen) variant bearing two thiosemicarbazone pendant groups has been prepared. The ligand forms complexes … bar budrioWebBisthiosemicarbazones are known to have antiviral, antimalarial and anticancer activity, [1] usually mediated through binding to copper or iron in cells. They have also been identified as potential ligands for radioisotope delivery, with selectivity towards hypoxic tissues, particularly in the heart and brain. survivor kim kazandı 2022WebAug 1, 2003 · Twelve zinc(II) complexes with thiosemicarbazone and semicarbazone ligands were prepared and characterized by elemental analysis, thermogravimetric and differential thermal analysis (TG/DTA), FT-IR and 1H and 13C NMR spectroscopy. Seven three-dimensional structures of zinc(II) complexes were determi … bar budsWebThe molecules known as bis (thiosemicarbazones) derived from 1,2-diones can act as tetradentate ligands for Cu ( II ), forming stable, neutral complexes. As a family, these … barbudos barberiaWeb* Corresponding authors a Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13566-590 São Carlos, SP, Brazil E-mail: [email protected] b Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, 2695-066 Bobadela LRS, Portugal barbu druga