Spectroscopic Studies on Bis(3,5-di-t-butyl-1,2-benzoquinone 1-oximato)copper(II) and its Mixed-Ligand Complexes. Copper(II)-Radical Ferromagnetic Coupling

Kasumov, Veli T.; Taş, Eşref; Yakar, Yasin; Köksal, Fevzī; Köşeoğlu, Rahmi

doi:10.1515/znb-2002-0504

Cited by 5 publications

(2 citation statements)

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“…Tetrahydrofuran (THF), hexane, and toluene were distilled from sodium−benzophenone. Commercial reagents, namely, NaH (60%), CpTiCl 3 , CpZrCl 3 , methylaluminoxane (MAO), and salicyaldehyde with o -aminophenol or o -aminothiophenol were purchased from ACROS Co. 3-( tert -Butyl)-5-methylsalicyaldehyde was prepared according to the literature …”

Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, and Ethylene Polymerization of Group IV Metal Complexes with Mono-Cp and Tridentate Aryloxide or Arylsulfide Ligands

2007

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Half-sandwich titanium and zirconium complexes with tridentate dianionic aryloxide or arylsulfide ligands [R-2-{(2-XC6H4)NCH}C6H2O]2- ([XNOR]2-, R = H, X = O (L1); R = 4-Me-6-Bu t (R‘), X = O (L2); R = H, X = S (L3); R = 4-Me-6-Bu t (R‘), X = S (L4)) have been prepared. Reactions of CpMCl3 (M = Ti, Zr) with sodium salts of the aryloxide or arylsulfide ligands (L1−L4) afford CpTi[XNOR]Cl [R = H, X = O (1); R = 4-Me-6-Bu t (R‘), X = O (2); R = H, X = S (3); R = 4-Me-6-Bu t (R‘), X = S (4)] and CpZr[ONOR]Cl [R = H (5)], respectively. Complexes 1−5 were characterized by IR and 1H NMR spectra and elemental analyses, and their molecular structures have been determined by X-ray diffraction methods. The coordination properties of these complexes have been investigated in the solid state and compared to related systems. When activated by excess methylaluminoxane (MAO), these complexes can be used as catalysts for ethylene polymerization and exhibited moderate activities. The activities of arylsulfide complexes 3 and 4 are higher than those of their analogues, aryloxide complexes 1 and 2, and zirconium complex 5 is much more active than titanium complexes 1−4.

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Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, and Ethylene Polymerization of Group IV Metal Complexes with Mono-Cp and Tridentate Aryloxide or Arylsulfide Ligands

2007

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“…Schiff bases and the relevant transition metal complexes are of interest in inorganic chemistry and have been studied extensively [1,2]. Some Schiff-base complexes are known to show antifungal activity, which is increased by the presence of hydroxy groups in the ligand.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, spectral characterization and electrochemical studies of copper(II) and cobalt(II) complexes with novel tetradentate salicylaldimines

Taş

Aslanoğlu

Ulusoy

et al. 2004

Journal of Coordination Chemistry

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Several new complexes of Schiff bases obtained by the condensation of 1,2-bis( p-aminophenoxy)ethane and 1,2-bis(m-aminophenoxy)ethane with 3,5-di-tert-butyl-2-hydroxybenzaldehyde have been synthesized, and characterized by elemental analyses, FT-IR, UV-VIS, 1 H NMR spectroscopy, magnetic susceptibility measurements and cyclic voltammetry. The metal to ligand ratios of the Co(II) and Cu(II) complexes were found to be 1 : 1. The coordination of the Schiff base appears to occur through the two azomethine nitrogens and two o-OH groups. Electrochemical data suggest the existence of copper(II)/copper(I) and cobalt(II)/cobalt(I) redox couples in DMSO along with an irreversible oxidation peak assigned to the oxidation of ligands for all of the complexes.

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Synthesis, structural determination, and ethylene polymerization chemistry of mono(salicylaldiminato) complexes of titanium(IV)

Owiny

Parkin

Ladipo

2003

Journal of Organometallic Chemistry

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Spectroscopic Studies on Bis(3,5-di-t-butyl-1,2-benzoquinone 1-oximato)copper(II) and its Mixed-Ligand Complexes. Copper(II)-Radical Ferromagnetic Coupling

Cited by 5 publications

References 0 publications

Synthesis, Characterization, and Ethylene Polymerization of Group IV Metal Complexes with Mono-Cp and Tridentate Aryloxide or Arylsulfide Ligands

Synthesis, Characterization, and Ethylene Polymerization of Group IV Metal Complexes with Mono-Cp and Tridentate Aryloxide or Arylsulfide Ligands

Synthesis, spectral characterization and electrochemical studies of copper(II) and cobalt(II) complexes with novel tetradentate salicylaldimines

Synthesis, structural determination, and ethylene polymerization chemistry of mono(salicylaldiminato) complexes of titanium(IV)

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