Pentadentate thioether-oxime macrocyclic and quasi-macrocyclic complexes of copper(II) and nickel(II)

Alcohol-soluble functional vic-dioxime bearing alcoholhexylsulfanyl moieties: preparation, spectroscopy and electrochemistry

“…The results are summarized in Table 2 with the complexes studied in the literature for comparing. It is clearly stated in the literature that oxime comparison metal complexes give redox signals involving both higher and lower oxidation states of the metal depending on the coordination environment of metal center and involving ligand reduction/oxidation processes recorded at very high negative/positive potentials [15, [27][28][29][30][31]. Electrochemical behavior of the complexes studied here are in harmony with the literature.…”

A water-soluble multisite ionophore ligand bearing pyridine and aminothiophenol functionality. Synthesis, spectroscopy and electrochemistry of its complexes, and peripheral reactivity of the (E,E)M (M = Ni) complex with Pd2+ and Ag+

“…These peaks are attributed to Cu(II)/Cu(I) and Cu(I )/ Cu(0), respectively. The copper-oxime complexes generally exhibit irreversible reduction waves as the Cu(I) forms are unstable towards conversion to Cu(0) which tends to plate out on the electrode [22]. Complex (5) also displays a third reduction peak with the corresponding anodic wave at )1.335 V which can be attributed to the oxime moieties.…”

“…The coordination environment around the vic-dioxime complexes plays the key role in stabilizing its different oxidation states and hence dictates the redox properties of the complexes. The availability of more than one lone pair on a donor atom or multiple donor atoms within a coordinated ligand introduces the potential for second-order interactions that lead to heteronuclear aggregates under appropriate conditions [18][19][20][21][22].…”

Synthesis and Characterization of Mononuclear Cobalt(II), Nickel(II), Copper(II), Zinc(II), Cadmium(II) and Dinuclear Uranyl(VI) Complexes with N,N-bis(2-{[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]amino}butyl) N′,N′-dihydroxyethanediimidamide

“…Vic-dioximes and their coordination compounds are widely used for various purposes in analytical, pigment, biological chemistry, chemical industry, medicinal chemistry and model compounds [2][3][4][5]. In our previous studies we investigated the synthesis and characterization of various transition metal complexes of new vic-dioximes [6][7][8][9][10][11][12][13][14][15][16].…”