Synthesis, characterization and extraction studies of a new vic-dioxime and its complexes containing bis(diazacrown ether) moieties

Bílgín, Ahmet; Ertem, Beytullah; Ağın, Fatma; Gök, Yaşar; Karslıoğlu, Selami

doi:10.1016/j.poly.2006.05.023

Cited by 33 publications

(17 citation statements)

References 27 publications

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“…Compared to other cadmium extracting agents, working well under neutral conditions, on which research was recently published, [11][12][13][14][15] [A336][TS] displays some considerable advantages: the selectivity for cadmium is well comparable to calix [4]arene derivates bearing pyridinium or sulfurcontaining units in the presence of alkali metal ions. [11][12][13] The extracting efficiency of [A336][TS] (>99.9%) lies even above these compounds and its use may be regarded to as more sustainable, as no volatile and flammable organic solvents are needed.…”

Section: H-proton Spectrum Of [A336][ts] Ismentioning

confidence: 99%

“…[11][12][13] The extracting efficiency of [A336][TS] (>99.9%) lies even above these compounds and its use may be regarded to as more sustainable, as no volatile and flammable organic solvents are needed. Other environmental friendly, low-cost biomaterials, for example, biofilm covered granular activated carbon, 15 or crab shells, 14 showing adsorption of organic residues or slow sorption kinetics, respectively, are outnumbered by [A336][TS] displaying an undisturbed fast metal uptake and a high affinity for cadmium under neutral conditions, even in a complex natural matrix.…”

Section: H-proton Spectrum Of [A336][ts] Ismentioning

confidence: 99%

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Greener synthesis of new ammonium ionic liquids and their potential as extracting agents

Kogelnig

Stojanovic

Galanski

et al. 2008

Tetrahedron Letters

105

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Section: H-proton Spectrum Of [A336][ts] Ismentioning

confidence: 99%

Section: H-proton Spectrum Of [A336][ts] Ismentioning

confidence: 99%

Greener synthesis of new ammonium ionic liquids and their potential as extracting agents

Kogelnig

Stojanovic

Galanski

et al. 2008

Tetrahedron Letters

105

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“…Flourescence [21], optical [22][23][24], biological [25,26], electrochemical [27][28][29], and thermal properties [30,31] have been of particular interest. In addition, X-ray crystal structures [32,33], IR on Longmir-Blodget films [34,35], biodistribution [36] and extraction studies [37], determination of metal ions [38,39] and photoelectrical behaviors [40] have all been reported. Vicinal dioximate ligands usually form stable N,N-chelated metal complexes containing a conjugated N=C-C=N system.…”

Section: Introductionmentioning

confidence: 99%

A new vic-dioxime ligand containing two azo substituents and its mononuclear nickel(II), cobalt(II), and copper(II) complexes; synthesis, characterization, spectroscopic and biological studies

Kurtoğlu

Purtaş

Toroğlu

2008

Transition Met Chem

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A new vicinal dioxime ligand containing azo and thione chromophores, namely 1,3-bis[4-(phenyldiazenyl)-phenyl]-2-thiooxaimidazoline-4,5-dione dioxime (bppH 2 ), was synthesized by the reaction of cyanogen di-N-oxide with N,N 0 -bis(4-phenylazophenyl) thiourea in dichloromethane solution at -10°C. Mononuclear complexes of bppH 2 with nickel(II), cobalt(II), and copper(II) were synthesized. The complexes, [Ni(bppH) 2 ], [Cu(bppH) 2 ], and [Co(bppH) 2 ] were characterized by several techniques using elemental analyses, conductivity measurements, FT-IR, and electronic spectral studies. The data suggest that the ligand coordinates through the N,N atoms, as do most vic-dioximes. The molar conductivities in DMF solution indicate nonelectrolytic nature for the complexes. Antimicrobial activities of the ligand and its metal complexes were estimated for five bacteria, namely Klebsiella pneumoniae, Micrococcus luteus, Mycobacterium smegmatis, Enterobacter cloaca and Bacillus megaterium and three fungi, namely Candida albicans, Kluyveromyces marxianus, and Rhodotorula rubra.

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“…Most of the bands appear as medium to strong sharp bands. The occurrence of well‐defined sharp bands indicates that there is coordination between the metal and the lone pairs of electrons on the nitrogen .…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Novel Organocobaloximes as Potential Catecholase and Antimicrobial Activity Agents

Erdem-Tuncmen

Karipçin

Sarıboğa

2013

Archiv der Pharmazie

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An asymmetric, potentially bidentate dioxime ligand (H₂L) was formed by condensation of 4-biphenylchloroglyoxime and napthyl-1-amine. Two equivalents of H₂L were reacted with CoCl₂ · 6H₂O under appropriate conditions with deprotonation of the dioxime ligand. A series of new organocobaloxime derivatives of the type [CoR(HL)₂Py], [CoRL₂PyB₂F₄], and [CoRL₂Py(Cu(phen))₂] (H₂L = 4-(napthyl-1-amino)biphenylglyoxime; phen = 1,10-phenathroline; R = izopropyl and benzyl; Py = pyridine) were synthesized. The products were characterized by elemental analysis, molar conductance, FT-IR, ¹H NMR, and magnetic susceptibility measurements. Catecholase-like activity properties of all complexes were also studied. All complexes are catalysts for the oxidation of 3,5-di-tert-butylcatechol to 3,5-di-tert-butyl-1,2-benzoquinone in methanol. Antimicrobial activity studies of H₂L and the six complexes were carried out on standard strains (human pathogenic) of bacteria (Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), Bacillus cereus, Enterococcus faecalis, Streptococcus pneumoniae, Listeria monocytogenes, Bacillus subtilis, Escherichia coli, Pseudominas aeruginosa, Salmonella typhi) and the yeast Candida albicans. The compounds showed a significant inhibition of the growth of the Gram-positive bacteria tested. Among the tested microorganisms, S. aureus was the most sensitive strain, especially to H₂L and its complexes.

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Synthesis, characterization and extraction studies of a new vic-dioxime and its complexes containing bis(diazacrown ether) moieties

Cited by 33 publications

References 27 publications

Greener synthesis of new ammonium ionic liquids and their potential as extracting agents

Greener synthesis of new ammonium ionic liquids and their potential as extracting agents

A new vic-dioxime ligand containing two azo substituents and its mononuclear nickel(II), cobalt(II), and copper(II) complexes; synthesis, characterization, spectroscopic and biological studies

Synthesis and Characterization of Novel Organocobaloximes as Potential Catecholase and Antimicrobial Activity Agents

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