Synthesis and spectral studies on monometallic ruthenium (III) complexes of N -(2-hydroxysalicyliden-1-yl)methylenebenzoylhydrazide

Kar, Nirmal K.; Singh, Mahesh Kumar; Lal, Ram A.

doi:10.1016/j.arabjc.2012.05.007

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…The higher thermal stability for Zn(II) complex is ascribed to the number of lattice solvents as shown in Table . The second step in the range 280–851 °C is associated with TG weight losses of 44.98, 43.25 and 49.79% for Zn(II), Pd(II) and Ru(III), respectively, due to degradation of chelate rings together with dehalogenation in addition to liberation of coordinated water in the case of Zn(II) and Ru(III). The residual moieties are in agreement with metal oxides contaminated with carbon atoms …”

Section: Resultssupporting

confidence: 62%

Synthesis, spectral characterization, thermal studies and biological activity of (Z)‐5‐((1,5‐dimethyl‐3‐oxo‐2‐phenyl‐2,3‐dihydro‐1H‐pyrazol‐4‐yl)diazenyl)‐6‐hydroxy‐2‐mercaptopyrimidin‐4(3H)‐one and its metal complexes

Emam

Abouel‐Enein

Abouzayed

2017

Applied Organom Chemis

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Z)-5-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)diazenyl)-6hydroxy-2-mercaptopyrimidin-4(3H)-one (H 3 L) was exploited as a ligand for the synthesis of a series of metal complexes, where the metal was Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Pd(II), Cr(III) and Ru(III). The structural features of the ligand and the synthesized complexes were characterized using various analytical, spectral and thermal measurements. Infrared spectra showed that the ligand coordinates to all metal ions in a neutral keto-enol-thiol manner. It behaves in a tetradentate fashion in all binuclear complexes except the Cr(III) complex, where it is hexadentate, and in a tridentate fashion in mononuclear complexes. The azo group participates in chelation only in the case of binuclear complexes. All complexes exhibit octahedral geometry except Pd(II) and Cu(II) acetate which are square planar and square pyramidal, respectively. Kinetic parameters were computed from thermal decomposition data. Axial electron spin resonance spectra were obtained for Cu(II) complexes indicating (d x 2 −y 2 ) 1 as a ground state with small g || values affording strong interaction between the ligand and metal ions. The biological measurements reveal that the ligand has antioxidant activity relative to the metal complexes, while the metal complexes have cytotoxicity in comparison to the free ligand. KEYWORDSantioxidant and anticancer activity, azodye ligand, metal complexes, spectral methods, thermal studies

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Section: Resultssupporting

confidence: 62%

Synthesis, spectral characterization, thermal studies and biological activity of (Z)‐5‐((1,5‐dimethyl‐3‐oxo‐2‐phenyl‐2,3‐dihydro‐1H‐pyrazol‐4‐yl)diazenyl)‐6‐hydroxy‐2‐mercaptopyrimidin‐4(3H)‐one and its metal complexes

Emam

Abouel‐Enein

Abouzayed

2017

Applied Organom Chemis

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“…Pt (II) 'nin kare-düzlemsel geometrisinin aksine, her iki oksidasyon durumunda, Ru iyonu oktahedral geometrisi sonucu altı koordinatlıdır, azot ve kükürt ligandları için iyi geometriye sahiptir. Bu nedenle, özellikle birçok rutenyum bileşiği çok az toksik olduğundan ve bazı rutenyum bileşiklerinin kanser hücreleri için oldukça seçici olduğu gösterildiğinden, platine benzer bir alternatif olarak kabul edilmektedir [14,17,19,[30][31][32][33][34][35][36][37][38][39].…”

Section: Introductionunclassified

Synthesis and Characterization of Bioactive New Benzimidazole Arene Ruthenium Organometallic Compound

Uluçay

Orhan

2020

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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Bu çalışmada [(η 6-p-simen)Ru(L 2)Cl]CI genel formülüne sahip olan biyoaktif benzimidazol aren rutenyum organometalik bileşiği, salisilaldehitin 2-(aminometil)benzimidazol dihidroklorür(ambm 2 .2HCI) bileşiği ile reaksiyona sokulmasının ardından, [Ru(p-simen)klorür] 2 eklenmesi ile hazırlandı. Biyoaktif benzimidazol aren rutenyum organometalik bileşiği UV-VIS, IR, ESI-MS, 1 H NMR, 13 C NMR spektroskopisi teknikleriyle karakterize edildi. Bileşiğin, Diferansiyel termal analiz (DTA) ve Termogravimetrik analiz (TGA) teknikleri ile ölçümleri yapıldı, ölçüm verileri incelendi.

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“…Schiff bases as a compound with azomethine linkage (-C=N-) are versatile and very popular ligands for metal coordination 1,2 . Since Schiff bases show diverse biological activity, a significant number of metal complexes with various ligands have been synthesized and their activities against different targets have been investigated [3][4][5][6][7][8] . Antibacterial, antifungal, antiviral, antioxidant and cytotoxic activities have been reported 1,[9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Novel Complexes of Ruthenium(iii) With Schiff Bases and Indazole – Synthesis and Characterization

Begić¹,

Ljubijankić²,

Gojak-Salimović³

et al. 2019

RJC

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Two novel cationic Ru(III) complex compounds with Schiff bases, N-phenyl-5-X-salicylideneimine (where X = H or Br) and indazole have been synthesized and characterized by various spectral and electrochemical analysis. The existence of molecular ions M + at m/z 730.1652 and 887.9818 corresponding to [C40H32N6O2Ru] + and [C40H30Br2N6O2Ru] + , respectively, was obtained by mass spectra analysis. The coordination of the ligands in the Ru(III) octahedral environment occurs through imine nitrogen, deprotonated phenolic oxygen atom from the Schiff bases as well as via the free electronic pair on the nitrogen atom in indazole. Furthermore, the effect of the cationic Ru(III) complexes on the Briggs-Rauscher oscillating reaction was preliminary studied and monitored potentiometrically.

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Synthesis and spectral studies on monometallic ruthenium (III) complexes of N -(2-hydroxysalicyliden-1-yl)methylenebenzoylhydrazide

Cited by 10 publications

References 26 publications

Synthesis, spectral characterization, thermal studies and biological activity of (Z)‐5‐((1,5‐dimethyl‐3‐oxo‐2‐phenyl‐2,3‐dihydro‐1H‐pyrazol‐4‐yl)diazenyl)‐6‐hydroxy‐2‐mercaptopyrimidin‐4(3H)‐one and its metal complexes

Synthesis, spectral characterization, thermal studies and biological activity of (Z)‐5‐((1,5‐dimethyl‐3‐oxo‐2‐phenyl‐2,3‐dihydro‐1H‐pyrazol‐4‐yl)diazenyl)‐6‐hydroxy‐2‐mercaptopyrimidin‐4(3H)‐one and its metal complexes

Synthesis and Characterization of Bioactive New Benzimidazole Arene Ruthenium Organometallic Compound

Novel Complexes of Ruthenium(iii) With Schiff Bases and Indazole – Synthesis and Characterization

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