نتایج جستجو برای: thiosemicarbazones
تعداد نتایج: 522 فیلتر نتایج به سال:
Bis-thiosemicarbazones derived from the ?-diketone benzoylacetone (H3banR, R=Me, Et, Ph) are potentially tetradentate N2S2 ligands whose coordination chemistry with copper is reported. In absence of oxygen and in presence base they form anionic CuII complexes fully deprotonated [CuII(banR)]–. Upon exposure to atmospheric undergo a complex series reactions leading two types products; one ligand ...
Steroidal thiosemicarbazones, semicarbazones and hydrazones have received extensive attention of scientists recently because they exhibit some biological activities such as antibacterial, antiviral and anticancer. Using different steroids as starting materials, through different chemical methods, 24 steroidal compounds with thiosemicarbazone, semicarbazone or hydrazone groups in their structure...
We report the microwave synthesis of several bis(thiosemicarbazones) and the rapid gallium-68 incorporation to give the corresponding metal complexes. These proved kinetically stable under 'cold' and 'hot' biological assays and were investigated using laser scanning confocal microscopy, flow cytometry and radioactive cell retention studies under normoxia and hypoxia. (68)Ga complex retention wa...
Three copper(II) complexes of salicylaldehyde N(4)-phenyl thiosemicarbazone (H2L ) and two copper(II) complexes of N(4)-cyclohexyl thiosemicarbazone (H2L ) have been synthesized and characterized by different physicochemical techniques like magnetic studies and electronic, infrared and EPR spectral studies. The complexes 1⁄2ðCuL1Þ2 12H2O ð1Þ and [(CuL )2] (4) having dimeric structure. The thios...
The reactions of cyclohexane-1,2-bis(4-methyl-3-thiosemicarbazone) (CHMTSC) with MCl2 (M = Co, Ni, Cu or Zn) and Cd(NO3)2 have been shown to produce complexes in which the thiosemicarbazone has been doubly deprotonated [[M(CHMTSC - 2H+)] (M = Co, Ni or Ni)], analogous to those reported earlier with other Schiff base thiosemicarbazones. However, with ZnCl2 and Cd(NO3)2, the complexes isolated ar...
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