Copper–dioxygen reactivity involved in the formation of µ-oxo [(por)FeIII–O–CuIIL]+heterodinuclear complexes (por = porphyrinate, L = tetradentate ligand), and novel synthesis of square-planar FeII(por) species

1995 ◽  
pp. 499-501 ◽  
Author(s):  
Alaganandan Nanthakumar ◽  
Stephen Fox ◽  
Kenneth D. Karlin
Keyword(s):  
Tetradentate Ligand ◽  
Novel Synthesis ◽  
Square Planar ◽  
Dioxygen Reactivity ◽  
Copper Dioxygen

scholarly journals Observation of a CuII2(μ-1,2-peroxo)/CuIII2(μ-oxo)2Equilibrium and its Implications for Copper-Dioxygen Reactivity

2014 ◽  
Vol 53 (19) ◽  
pp. 4935-4939 ◽  
Author(s):  
Matthew T. Kieber-Emmons ◽  
Jake W. Ginsbach ◽  
Patrick K. Wick ◽  
Heather R. Lucas ◽  
Matthew E. Helton ◽  
...  
Keyword(s):  
Dioxygen Reactivity ◽  
Copper Dioxygen

Observation of a CuII2(μ-1,2-peroxo)/CuIII2(μ-oxo)2Equilibrium and its Implications for Copper-Dioxygen Reactivity

2014 ◽  
Vol 126 (19) ◽  
pp. 5035-5039 ◽  
Author(s):  
Matthew T. Kieber-Emmons ◽  
Jake W. Ginsbach ◽  
Patrick K. Wick ◽  
Heather R. Lucas ◽  
Matthew E. Helton ◽  
...  
Keyword(s):  
Dioxygen Reactivity ◽  
Copper Dioxygen

scholarly journals {4,4′-Dichloro-2,2′-[2,2-dimethylpropane-1,3-diylbis(nitrilomethanylylidene)]diphenolato}copper(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1135-m1135 ◽  
Author(s):  
Hadi Kargar ◽  
Reza Kia ◽  
Fatemeh Ganji ◽  
Valiollah Mirkhani
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Schiff Base Complex ◽  
Tetradentate Ligand ◽  
Base Complex ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Benzene Rings

In the title Schiff base complex, [Cu(C19H18Cl2N2O2)], the CuIIion is coordinated in a distorted square-planar environment by two N atoms and two O atoms of the tetradentate ligand. The dihedral angle between the benzene rings is 36.86 (14)°. In the crystal, molecules are linked into inversion dimers by pairs of weak C—H...O hydrogen bonds. In addition, π–π [centroid–centroid distance = 3.7279 (16) Å] and weak C—H...π interactions are observed.

scholarly journals Evidence for Copper-dioxygen Reactivity during α-Synuclein Fibril Formation

2010 ◽  
Vol 132 (19) ◽  
pp. 6636-6637 ◽  
Author(s):  
Heather R. Lucas ◽  
Serena DeBeer ◽  
Myoung-Soon Hong ◽  
Jennifer C. Lee
Keyword(s):  
Fibril Formation ◽  
Dioxygen Reactivity ◽  
Copper Dioxygen

scholarly journals Synthesis, Characterization, and Biological Activity of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) Complexes of N-Thiophenoyl-N′-Phenylthiocarbohydrazide

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
M. Yadav ◽  
Debasis Behera
Keyword(s):  
Magnetic Susceptibility ◽  
Biological Activity ◽  
Octahedral Geometry ◽  
Spectral Studies ◽  
Planar Geometry ◽  
Tetradentate Ligand ◽  
Tetrahedral Geometry ◽  
Square Planar ◽  
Infrared Spectral ◽  
Bacteria And Fungi

Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) complex of N-thiophenoyl -N′-phenylthiocarbohydrazide (H2TPTH) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, infrared, NMR, electronic, and ESR spectral studies. The complexes were found to have compositions [Mn(H TPTH)2], [Co(TPTH) (H2O)2], [Ni(TPTH) (H2O)2], [Cu(TPTH)], [Zn(H TPTH)], [Cd(H TPTH)2], and [Fe(H TPTH)2(EtOH)]. The magnetic and electronic spectral studies suggest square planar geometry for [Cu(TPTH)], tetrahedral geometry for [Zn(TPTH)] and [Cd(H TPTH)2], and octahedral geometry for rest of the complexes. The infrared spectral studies of the 1 : 1 deprotonated complexes suggest bonding through enolic oxygen, thiolato sulfur, and both the hydrazinic nitrogens. Thus, H2TPTH acts as a binegative tetradentate ligand. H2TPTH and its metal complexes have been screened against several bacteria and fungi.

Ligand Macrocycle Structural Effects on Copper−Dioxygen Reactivity

2000 ◽  
Vol 39 (18) ◽  
pp. 4059-4072 ◽  
Author(s):  
Bernice M. T. Lam ◽  
Jason A. Halfen ◽  
Victor G. Young, ◽  
John R. Hagadorn ◽  
Patrick L. Holland ◽  
...  
Keyword(s):  
Structural Effects ◽  
Dioxygen Reactivity ◽  
Copper Dioxygen

Modulation of the Copper-Dioxygen Reactivity by Stereochemical Effect of Tetradentate Tripodal Ligands

2002 ◽  
Vol 31 (3) ◽  
pp. 416-417 ◽  
Author(s):  
Hideki Hayashi ◽  
Kounosuke Uozumi ◽  
Shuhei Fujinami ◽  
Shigenori Nagatomo ◽  
Kazushi Shiren ◽  
...  
Keyword(s):  
Tripodal Ligands ◽  
Dioxygen Reactivity ◽  
Copper Dioxygen

scholarly journals Synthesis and Characterization of Tripodal Tetradentate Ligand Type NS3 and its Complexes with Re(V), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II)

2009 ◽  
Vol 6 (1) ◽  
pp. 173-187
Author(s):  
Baghdad Science Journal
Keyword(s):  
Electrical Conductivity ◽  
Metal Ions ◽  
Synthesis And Characterization ◽  
Planar Geometry ◽  
Spectroscopic Techniques ◽  
Tetradentate Ligand ◽  
Ligand Type ◽  
Square Planar ◽  
1H Nuclear Magnetic Resonance

This work represents the preparation of the starting material, 3-chloro-2-oxo-1,4-dithiacyclohexane (S) using a new method. This material was reacted with, 4-phenylthiosemicarbazide to give (H3NS3) as a tetradentate ligand H3L. New complex of rhenium (V) with this ligand of the formula [ReO(L)] was prepared. New complexes of the general formula [M(HL)] of this ligand when reacted with some metal ions where: M = Ni(II), Cu(II), Cd(II), Zn(II), Hg(II) have been reported. The ligand and the complexes were characterized by infrared, ultraviolet–visible, mass, 1H nuclear magnetic resonance and atomic absorption spectroscopic techniques and by (HPLC), elemental analysis, and electrical conductivity. The proposed structure for H3L with Re (V) is square pyramidal, while Ni(II) complex was square planar geometry, and with the rest of metal ions are distorted tetrahedral.

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