Antimicrobial selectivity of ruthenium, rhodium, and iridium half sandwich complexes containing phenyl hydrazone Schiff base ligands towards B. thuringiensis and P. aeruginosa bacteria
摘要:
A series of new hydrazone mononuclear complexes of the type [(arene)MLCl]PF6 (M = Ru, Rh, Ir) have been synthesized in this study. All these complexes were fully characterized with the help of FT-IR, UV-Vis, mass and NMR spectroscopy. The molecular structures of representative complexes (1, 2, 7 and 8) were established by single crystal X-ray diffraction study. The molecular structures of the complexes revealed typical piano stool geometry around the metal center in which the ligand acts as NN' donor chelating ligand. In the case of complexes (1-3), the ligand coordinates to the metal by using both the pyridine nitrogen atoms forming a six membered metallocycle whereas in complexes (4-9) one hydrazone nitrogen atom and one pyridine nitrogen atom coordinates to the metal ion forming a five membered metallocycle. These compounds were evaluated for their in vitro antibacterial activity by agar well diffusion method against two Gram-negative bacteria Escherichia coli, Pseudomonas aeruginosa, and two Gram-positive bacteria Staphylococcus aureus, Bacillus thuringiensis. Results show that all the complexes inhibit the growth of bacteria.
Dutta, R. L.; Kuntala, D. E., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1988, vol. 27, # 2, p. 133 - 136
Synthesis and characterization of a homologous series of mononuclear palladium complexes containing different cyclometalated ligands
作者:Iolinda Aiello、Alessandra Crispini、Mauro Ghedini、Massimo La Deda、Francesco Barigelletti
DOI:10.1016/s0020-1693(00)00216-4
日期:2000.10
New mononuclear palladium(II) complexes formed by with 2-hydroxy-4-( n -hexyloxybenzylidene)-4′- n -hexyaniline ( HL ) and 2-phenylpyridine ( I ), benzo[h]quinoline ( II ), azobenzene ( III ), 2-benzoylpyridine ( IV ) or phenyl-2-pyridylketone-2,4-dinitrophenylhydrazone ( V ) have been synthesized and characterized by analytical and spectroscopic methods and the single-crystal structures of [(IVa)Pd(L)]
摘要由2-羟基-4-(正己氧基苄基)-4'-正己基苯胺(HL)和2-苯基吡啶(I),苯并[h]喹啉(II),偶氮苯形成的新型单核钯(II)配合物(III)合成了2-苯甲酰基吡啶(IV)或苯基-2-吡啶基酮-2,4-二硝基苯基hydr(V)并通过分析和光谱法表征了[(IVa)Pd(L) ]和[(Va)Pd(L)]已建立。光谱和衍射数据解释了分子结构,其中钯(II)中心是两个螯合环的一部分,两个螯合环涉及HL和一个I-V配体,后者形成五元N,C [((Ia)PdL],[ (IIa)Pd(L)]和[(IIIa)Pd(L)]},六元N,C [((IVa)Pd(L)]})或六元N,N'[ (Va)Pd(L)]}金属环。[(IIIa)Pd(L)]和[(Va)Pd(L)]的电子光谱在495(e〜3×10 3 M -1 cm -1)和531 nm(e〜分别为2×10 4 M -1 cm -1),该结
Beckmann Rearrangement of the Oximes of Phenyl 2-Pyridyl Ketone (2-Benzoylpyridine)
作者:Ernest H. Huntress、Henry C. Walter
DOI:10.1021/ja01191a046
日期:1948.11
Antimicrobial selectivity of ruthenium, rhodium, and iridium half sandwich complexes containing phenyl hydrazone Schiff base ligands towards B. thuringiensis and P. aeruginosa bacteria
A series of new hydrazone mononuclear complexes of the type [(arene)MLCl]PF6 (M = Ru, Rh, Ir) have been synthesized in this study. All these complexes were fully characterized with the help of FT-IR, UV-Vis, mass and NMR spectroscopy. The molecular structures of representative complexes (1, 2, 7 and 8) were established by single crystal X-ray diffraction study. The molecular structures of the complexes revealed typical piano stool geometry around the metal center in which the ligand acts as NN' donor chelating ligand. In the case of complexes (1-3), the ligand coordinates to the metal by using both the pyridine nitrogen atoms forming a six membered metallocycle whereas in complexes (4-9) one hydrazone nitrogen atom and one pyridine nitrogen atom coordinates to the metal ion forming a five membered metallocycle. These compounds were evaluated for their in vitro antibacterial activity by agar well diffusion method against two Gram-negative bacteria Escherichia coli, Pseudomonas aeruginosa, and two Gram-positive bacteria Staphylococcus aureus, Bacillus thuringiensis. Results show that all the complexes inhibit the growth of bacteria.
Dutta, R. L.; Kuntala, D. E., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1988, vol. 27, # 2, p. 133 - 136