Alkoxy-bridged complexes of copper(II) and nickel(II) with schiff bases of alcoholamines - including effects of structural distortion on the electronic spectra of Six-coordinate nickel(II) Complexes

Differentially Selective Chemosensor with Fluorescence Off–On Responses on Cu2+ and Zn2+ Ions in Aqueous Media and Applications in Pyrophosphate Sensing, Live Cell Imaging, and Cytotoxicity

“…However, for each metal cation, one of the metal–oxygen coordination distances [Cu1–O6 2.792(4) Å; Cu2–O1 i 2.912(3) Å; Table S2 in the SI] considerably exceeds (by 0.4–0.6 Å) the others, but those dimensions are still within the sum of the van der Waals radii of the atoms involved. The shortest intrametallic distance found in this structure [2.9198(8) Å] relates the two copper atoms in the central M 2 O 2 core and indicates a strong metal···metal interaction, comparable to those found in dicopper(II) sites of natural enzymes [e.g., catechol oxidase, d (Cu···Cu) = 2.90 Å] and shorter than those reported in exogenous alkoxo-bridged dicopper(II) complexes . The structure is stabilized by means of intermolecular bond interactions involving the amide nitrogen atoms N1 and the O8 atoms from the methoxide counterions as acceptors [ d (D···A) = 2.853(5) Å; ∠(D–H···A) = 154°].…”

Synthesis of Novel Tetra(µ3-Methoxo) Bridged with [Cu(II)-O-Cd(II)] Double-Open-Cubane Cluster: XRD/HSA-Interactions, Spectral and Oxidizing Properties

“…Tetra-nuclear Cu(II) clusters are existing as hot-urge points in bioinorganic modeling, magnetochemistry, multielectron transfer and catalysis. In the two last decades, plenty of cubane clusters were prepared by using alkoxo-bridged NOO or NNO types of donor ligands were prepared until now [17][18][19][20][21][22]. On the other hand, clusters with multiple spin molecular centers revealed a good catalytic aspect, especially in industrial oxidation processes [23][24][25][26][27][28][29].…”

“…Tetra-nuclear Cu(II) clusters are existing as hot-urge points in bioinorganic modeling, magnetochemistry, multielectron transfer and catalysis. In the two last decades, plenty of cubane clusters were prepared by using alkoxo-bridged NOO or NNO types of donor ligands were prepared until now [17][18][19][20][21][22].…”