Articles with "nickel complexes" as a keyword



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Iron(III) and nickel(II) complexes of tetradentate thiosemicarbazones: Synthesis, structure, cytotoxicity, and lipophilicity

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Published in 2019 at "Journal of Biochemical and Molecular Toxicology"

DOI: 10.1002/jbt.22383

Abstract: Eighteen of the iron(III) and nickel(II) complexes with tetradentate thiosemicarbazidato ligands were synthesized and described, by analytical and spectroscopic methods. Two complexes as an example to the iron and nickel centered ones were crystallographically analyzed… read more here.

Keywords: nickel; nickel complexes; iron; cell ... See more keywords
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Thione-Based Nickel(II) Complexes as Functional Antioxidant Mimics: Scavenging Activity of Reactive Oxygen Species O2−· and X-Ray Crystal Structure of [Ni(Ttxyly)2]2 {Ttxylyl = Hydrotris(2-mercapto-1-xylyl-imidazolyl)borate}

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Published in 2017 at "Journal of Inorganic and Organometallic Polymers and Materials"

DOI: 10.1007/s10904-017-0573-1

Abstract: Two new thione-based nickel complexes, viz., [Ni(Tmipr)2Cl2]⋅2H2O 1 and [Ni(Ttxyly)2] ⋅H2O⋅2CH3OH 2 {Tmipr = 1-(2-isopropylphenyl)-1H-imidazole-2(3H)-thione; Ttxylyl− = hydrotris[1-(2,6-dimethylphenyl)-1H-imidazole-2(3H)-thione]borate anion} have been synthesized. Their structures and properties were characterized by several physicochemical methods, namely elemental and thermal analysis, FT-IR and… read more here.

Keywords: nickel; nickel complexes; thione; based nickel ... See more keywords
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Synthesis of water-soluble bis-N,O-chelate nickel(II) complexes based on new ligands – P-pyridyl-containing phospholane oxides

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Published in 2018 at "Russian Chemical Bulletin"

DOI: 10.1007/s11172-018-2203-7

Abstract: A series of new N,O-hybrid ligands was synthesized by oxidation of pyridyl-substituted phospholanes. These ligands were employed in the first synthesis of water-soluble mononuclear nickel(II) complexes [NiL2(H2O)2](BF4)2 and [NiL2(MeCN)2](BF4)2. Physicochemical properties and crystalline structures of… read more here.

Keywords: nickel complexes; soluble bis; synthesis water; water soluble ... See more keywords
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Alkane and alkene oxidation reactions catalyzed by nickel(II) complexes: Effect of ligand factors

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Published in 2020 at "Coordination Chemistry Reviews"

DOI: 10.1016/j.ccr.2019.213085

Abstract: Abstract Targeting selective hydroxylation under mild conditions of saturated hydrocarbons has become a challenging and exciting scientific area that has drawn larger attention in recent years because high temperatures and high pressures are required for… read more here.

Keywords: oxidation; hydroxylation; oxidation reactions; nickel complexes ... See more keywords
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Nickel complexes with phosphines and N-R-sulfonyldithiocarbimates ligands: New antifungals for the control of Hemileia vastatrix and Phakopsora pachyrhizi

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Published in 2019 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2018.11.037

Abstract: Abstract Nickel(II) complexes of general formula [Ni(RSO2N = CS2)(PPh3)2] (2a–h) or [Ni(RSO2N = CS2)dppe] (3a–h), where R = methyl (a), ethyl (b), butyl (c), octyl (d), phenyl (e), 4-isopropylphenyl (f), 4-tert-butylphenyl (g), 2-naphthyl (h), PPh3 = triphenylphosphine and dppe = 1,2-bis(diphenylphosphine)ethane were prepared, from which… read more here.

Keywords: phakopsora pachyrhizi; hemileia vastatrix; nickel complexes; vastatrix phakopsora ... See more keywords
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Multinuclear nickel(II) complexes with chiral schiff base ligand

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Published in 2020 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2020.119798

Abstract: Abstract Herein we report three chiral, hierarchal mono-, tetra-, and hexa-nuclear nickel complexes that were formed via controlled self-aggregation based on ancillary ligands H3L1 (2,6-bis[(2,3-dihydro-1H-2-indenol)imine]-4-bromophenol) and H3L2 (2,6-bis[(2,3-dihydro-1H-2-indenol)imine]-4-tert-butylphenol). Stoichiometric control of the metal precursor and… read more here.

Keywords: nickel; multinuclear nickel; chiral schiff; nickel complexes ... See more keywords
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Synthesis, characterization and antimicrobial activity of nickel(II) complexes of tridentate N3 ligands

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Published in 2021 at "Inorganica Chimica Acta"

DOI: 10.1016/j.ica.2021.120515

Abstract: Abstract The desire to develop new antimicrobial agents against the rising threat of extensive antibiotic resistance led to the exploration of many natural and synthetic compounds. Herein, we report the isolation and structural characterization of… read more here.

Keywords: characterization; nickel complexes; antimicrobial activity; activity ... See more keywords
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The effect of oxidation state of metal on hydrogen production electro-catalyzed by nickel complexes supported by maleonitriledithiolate ligand

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Published in 2017 at "Journal of Electroanalytical Chemistry"

DOI: 10.1016/j.jelechem.2016.12.011

Abstract: Abstract Two molecular electro-catalysts based on nickel complexes, [Ni(mnt) 2 ] n − (n = 2 ( 1 ) and 1 ( 2 )) are formed by the reactions of NiCl 2 ·6H 2 O, Na 2 (mnt)… read more here.

Keywords: hydrogen; oxidation state; effect oxidation; nickel complexes ... See more keywords
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Structural and ethylene oligomerization studies of chelated NˆO (imino/amino)phenol nickel(II) complexes

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Published in 2017 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2017.05.050

Abstract: Abstract Condensation reactions of 2-aminoethanol with the appropriate aldehyde gave ligands 2-[1-[(2-hydroxyethyl)imino]ethyl]phenol (L1) and 2-[(2-hydroxyethyl)imino] methyl]phenol (L2) respectively. Subsequent reductions of L1 and L2 with NaBH4 afforded the corresponding amine ligands 2-[1-[(2-hydroxyethyl)amino]ethyl]phenol (L3) and 2-{[(2-hydroxyethyl)amino]methyl}phenol… read more here.

Keywords: amino; imino; nickel complexes; phenol ... See more keywords
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Application of 1,2,3-triazolylidene nickel complexes for the catalytic oxidation of n-octane

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Published in 2017 at "Molecular Catalysis"

DOI: 10.1016/j.mcat.2017.03.005

Abstract: Half-sandwich nickel complexes bearing a variety of mesoionic N-heterocyclic carbene ligands (η5-cyclopentadienyl)-iodo-{1-(R)-3-methyl-4-phenyl-1H-1,2,3-triazol-3-ium-5-yl}nickel; where R = phenyl (3a); 2-ethoxy-2-oxoethyl (3b); propyl (3c); benzyl (3d) were synthesized by the reaction of nickelocene with the respective triazolium salts.… read more here.

Keywords: nickel; oxidation; nickel complexes; reaction ... See more keywords
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Syntheses, characterization, superoxide dismutase, antimicrobial, crystal structure and molecular studies of copper (II) and nickel (II) complexes with 2-((E)-(2, 4-dibromophenylimino) methyl)-4-bromophenol as Schiff base ligand

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Published in 2017 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2017.07.101

Abstract: Abstract Three new copper (II) and nickel (II) complexes viz. [Cu(L)2](1a), [Cu(L)2](1b) and [Ni(L)2].DMF(2), where HL = 2-((E)-(2, 4-dibromophenylimino) methyl)-4-bromophenol, have been synthesized and characterized by using various physico-chemical and spectroscopic techniques. The crystal structures of Schiff… read more here.

Keywords: copper nickel; nickel complexes; base; base ligand ... See more keywords