Synthesis, spectroscopic, electrochemical and antibacterial studies of new Ru(II) 1,10-phenanthroline complexes containing aryldiazopentane-2,4-dione as co-ligand
作者:Lallan Mishra、Ajay Kumar Yadaw、Sudha Srivastava、Anant Bahadur Patel
DOI:10.1039/b001128m
日期:——
Mononuclear
and dinuclear Ru(II) complexes of 1,10-phenanthroline containing aryldiazopentane-2,4-diones (L1H–L3H2)
as co-ligands were prepared and characterised using IR, 1H NMR, UV/Vis spectra in addition to their elemental
analysis and FAB mass spectral data. A representative ligand L2H2 and its complex [Ru2L2(phen)4]2+ (phen=1,10-phenanthroline)
were characterised also by 1H–1H COSY, TOCSY and 1H–13C HMBC spectral data. Electrochemical behaviour
of the complexes was studied in acetonitrile solution and showed irreversible RuII/RuIII redox couples. Luminescence
and UV/Vis spectral properties of the complexes in the presence and absence of buffered solutions
of calf thymus DNA were also compared. Antibacterial
activity
of the complexes has been evaluated against Pseudomonas aeruginosa.
含有芳基重氮戊二酮-2,4-二酮(L1H-L3H2)作为共配体的1,10-菲咯啉单核和双核Ru(II)配合物被制备并使用红外、核磁共振、紫外/可见光谱以及元素分析和FAB质谱数据进行了表征。代表性配体L2H2及其配合物[Ru2L2(phen)4]2+(phen=1,10-菲咯啉)也通过1H-1H COSY、TOCSY和1H-13C HMBC光谱数据进行了表征。这些配合物的电化学行为在乙腈溶液中进行了研究,并显示出不可逆的RuII/RuIII氧化还原对。比较了这些配合物在有无小牛胸腺DNA缓冲溶液存在下的发光和紫外/可见光谱性质。这些配合物的抗菌活性已针对铜绿假单胞菌进行了评估。