Coordination Chain Polymers of Some Transition Metals With Schiff Base

Patel, Nilesh H.; Patel, Ketan M.; Patel, K. N.; Patel, Mohan N.

doi:10.1081/sim-100105259

Cited by 10 publications

(4 citation statements)

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“…[1] In continuation of earlier work, [2] we prepared some coordination polymers of the type [Ni(SB)] n and [M(SB)(H 2 O) 2 ] n where M ¼ Mn(II), Co(II), Cu(II), Zn(II) and Cd(II). [1] In continuation of earlier work, [2] we prepared some coordination polymers of the type [Ni(SB)] n and [M(SB)(H 2 O) 2 ] n where M ¼ Mn(II), Co(II), Cu(II), Zn(II) and Cd(II).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Patel

2002

Synthesis and Reactivity in Inorganic and Metal-Organic Chemist

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Patel

2002

Synthesis and Reactivity in Inorganic and Metal-Organic Chemist

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“…2 T 2g transition of octahedral geometry [35,36]. On the basis of the above discussion, an octahedral geometry may be assigned to the heteronuclear complexes of oxorhenium(V) and Cu(II) as shown in Fig.…”

Section: Electronic Spectra and Magnetic Moments Of The Complexesmentioning

confidence: 97%

Heterobinuclear and Heterotrinuclear complexes of Oxorhenium(V) with Cu(II), Ni(II), Fe(III), UO₂(VI) and Th(IV) in the solid state

Mashaly

2004

Journal of Coordination Chemistry

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New heteronuclear complexes containing oxorhenium(V), Cu(II), Ni(II), Fe(III), UO 2 (VI) and Th(IV) ions were prepared by the reaction of the complex ligand, [ReO(H 4 L)Cl]Cl 2 , where H 4 L ¼ 8, 17-dimethyl-6,15-dioxo-5,7,14,16-tetrahydrodibenzo[a,h][14]annulene-2,11-dicarboxylic acid, with the previous transition and actinide salts. Three heteronuclear Cu(II) complexes were isolated depending on the ratio of [ReO(H 4 L)Cl]Cl 2 : Cu(II) ion. When the ratios were 1 : 0.5, 1 : 1 and 1 : 2, the heteronuclear complexes {[ReO(H 3 L)Cl] 2 CuCl 2 (OH 2 ) 2 }SO 4 Á H 2 O (I), [ReO(H 3 L)Cl 2 Cu(OH 2 ) 2 (SO 4 )] (II) and {ReO(H 2 L)Cl[Cu(OH 2 ) 3 SO 4 ] 2 } (III) were obtained, respectively. Heteronuclear complexes of the other metal cations were obtained by mixing [ReO(H 4 L)Cl]Cl 2 with the metal salt in the ratio 1 : 1 to obtain the heteronuclear complexes [ReO(H 3 L)Cl 2 Ni(OH 2 ) 2 ](NO 3 ) 2 (IV), [ReO(H 3 L)Cl 3 Fe(OH 2 ) 3 ](NO 3 ) 2 (V), [ReO(H 3 L)ClUO 2 (NO 3 ) 2 (OH 2 )]Cl (VI) and [ReO(H 3 L)Cl 3 Th(NO 3 ) 2 (OH 2 )]NO 3 Á 2H 2 O (VII).The complex ligand coordinates with the heterometal ion via the carboxylate group, and the infrared bands as COO and s COO indicate that the carboxylate acts as a unidentate ligand to the heterometal cations. Cu(II) and Fe(III) cations in the heteronuclear complexes have octahedral geometry, while Ni(II) is square planar. Thermal studies explored the possibility of obtaining new heteronuclear complexes pyrolytically in the solid state from the corresponding mother complexes. The structures of the complexes were elucidated by conductance, IR and electronic spectra, magnetic moments, 1 H NMR and TG-DSC measurements as well as by mass spectroscopy.

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“…The magnetic-susceptibility measurement (4.01 B.M.) for the solid Co(II) complex is also indicative of three unpaired electrons per Co(II) ion, suggesting consistency with their octahedral environment (Ozturk et al, 2006;Patel et al, 2001).…”

Section: Magnetic Susceptibility and Electronic Spectra Measurementsmentioning

confidence: 98%

Pro-oxidant and antiproliferative effects of the 1,3,4-thiadiazole–based Schiff base and its metal complexes

Turan

Topçu

Ergin

et al. 2011

Drug and Chemical Toxicology

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Adverse biological activities of Schiff base (SB) derivatives are well known. In this study, the ligand and its metal complexes have been synthesized and characterized by IR, (1)H-NMR spectra, elemental analyses, magnetic susceptibility, UV-Vis spectra, and thermogravimetry/differential thermal analysis. From the elemental analyses data, the complexes were proposed to have the general formula [Mn(L)(2)(H(2)O)(2)], [Co(L)(2)(H(2)O)(2)], and [Ni(2)(L)(H(2)O)(4)(Cl)(3)]. From the magnetic moment and UV-Vis spectra data, it was found that the geometrical structures of these complexes are octahedral. In the in vivo experiment, adult male rats were injected subcutaneously with a new SB (L) and its [Mn(L)(2)(H(2)O)(2)], [Co(L)(2)(H(2)O)(2)], and [Ni(2)(L)(H(2)O)(4)(Cl)(3)] complexes (25 mg/kg body weight) and were then sacrificed 16 days later. Effects of these compounds on serum antioxidant vitamins (i.e., vitamins A, E, and C) and malondialdehyde (MDA) levels were measured in blood serum, liver, and kidney tissues. In an in vitro experiment, antiproliferative effects of these compounds were assessed on the human breast carcinoma MCF-7 and murine leukemia L1210 cell lines. Serum MDA and vitamins A, E, and C levels did not change by the treatments. However, in the kidney and liver tissues, MDA levels were higher, whereas vitamin levels were lower in treatment groups, compared to the control group. All compounds inhibited cell proliferation of MCF-7 and L1210 cancer cell lines in a dose- and time-dependent manner. In conclusion, SB derivatives tested in the current study induced oxidative stress in vivo and exhibited anti-proliferative effects in an in vitro culture system.

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Coordination Chain Polymers of Some Transition Metals With Schiff Base

Cited by 10 publications

References 11 publications

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Heterobinuclear and Heterotrinuclear complexes of Oxorhenium(V) with Cu(II), Ni(II), Fe(III), UO₂(VI) and Th(IV) in the solid state

Pro-oxidant and antiproliferative effects of the 1,3,4-thiadiazole–based Schiff base and its metal complexes

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Coordination Chain Polymers of Some Transition Metals With Schiff Base

Cited by 10 publications

References 11 publications

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Synthesis and Characterization of Coordination Chain Polymers of Some Transition Metals With Schiff Base

Heterobinuclear and Heterotrinuclear complexes of Oxorhenium(V) with Cu(II), Ni(II), Fe(III), UO2(VI) and Th(IV) in the solid state

Pro-oxidant and antiproliferative effects of the 1,3,4-thiadiazole–based Schiff base and its metal complexes

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Heterobinuclear and Heterotrinuclear complexes of Oxorhenium(V) with Cu(II), Ni(II), Fe(III), UO₂(VI) and Th(IV) in the solid state