Abstract New palladium(II) binuclear complexes (1–4) of the type [Pd2(Msal-Rtsc)2(μ-dppm)] (R = H or CH3 or C2H5 or C6H5) were prepared and characterised by using various spectro analytical techniques. The true coordinating nature of the ligands in the complexes was confirmed by X-ray crystallographic studies. From the X-ray crystallographic analysis, it is found that the ligands [H2L1–H2L4] were bound
Four new Ni(II) complexes [Ni2(Msal-tsc)2(μ-dppm)] (1), [Ni2(Msal-mtsc)2(μ-dppm)] (2), [Ni2(Msal-etsc)2(μ-dppm)] (3) and [Ni2(Msal-ptsc)2(μ-dppm)] (4) containing 3-methoxy-salicylaldehyde-4(N)-substituted thiosemicarbazones having the general formula [H2-MSal-tsc-R],(where R = H, Me, Et or Ph) and 1,1′-bis(diphenylphosphino)methane (dppm) were synthesized and characterized by various spectral, analytical
stoichiometric reactions of 3-methoxy salicylaldehyde-4(N)-substituted thiosemicarbazones (H2L1−4) with [RuCpCl(PPh3)2] was carried out in methanol. The obtained complexes (1–4) were characterized by analytical, IR, absorption and 1H NMR spectroscopic studies. The structures of ligand [H2-3MSal-etsc] (H2L3) and complex [RuCp(Msal-etsc) (PPh3)] (3), were characterized by single crystalX-ray diffraction
在甲醇中进行了3-甲氧基水杨醛-4(N)取代的硫代半咔唑酮(H 2 L 1-4)与[RuCpCl(PPh 3)2 ]的1:1化学计量反应。将所得到的复合物(1 - 4)通过分析,IR,吸收和表征1个1 H NMR光谱研究。通过单晶X射线衍射研究表征了配体[H 2 -3MSal-etsc](H 2 L 3)和复合物[RuCp(Msal-etsc)(PPh 3)](3)的结构。钌(II)配合物的相互作用(1– 4)通过吸收和发射滴定法探索了小牛胸腺DNA(CT-DNA)。基于这些观察,已经提出了DNA的插入结合模式。通过猝灭作为模型蛋白的BSA的色氨酸和酪氨酸残基来监测新复合物的蛋白结合能力。从研究中发现,新的钌金属环比它们的前体表现出更好的亲和力。自由基清除试验表明,与标准对照抗坏血酸相比,所有配合物均能有效清除DPPH自由基,并且清除活性的顺序为4> 2 > 3> 1。此外,钌(II)
Structurally different mono-, bi- and trinuclear Pd(<scp>ii</scp>) complexes and their DNA/protein interaction, DNA cleavage, and anti-oxidant, anti-microbial and cytotoxic studies
A series of new structurally different Pd(ii) complexes was obtained by the reactions between K2[PdCl4], 3-methoxysalicylaldehyde-4(N)-substituted thiosemicarbazone [H2L1–H2L4] and bis(diphenylphosphino)ethane [dppe].
Synthesis, characterisation, crystal structures and biological studies of palladium(<scp>ii</scp>) complexes containing 5-(2-hydroxy-3-methoxy-phenyl)-2,4-dihydro[1,2,4]triazole-3-thione derivatives
作者:A. Shanmugapriya、F. Dallemer、R. Prabhakaran
DOI:10.1039/c8nj03714k
日期:——
A series of new Pd(II) complexes (1–4) were obtained from the reactions between K2[PdCl4], 3-methoxysalicylaldehyde-4(N)-substituted thiosemicarbazone [H2L1–H2L4] and 1,3-bis(diphenylphosphino)propane [dppp]. All the complexes were characterized by various spectroscopic techniques (IR, electronic, 1H-NMR and ESI-MS). The crystal structures of complexes 2 and 4 have been determined by single crystal