Metal-catalyzed C–N cross-coupling generally forms C−N bonds by reductive elimination from metal complexes bearing covalent C- and N-ligands. We have identified a Cu-mediated that uses dative N-ligand in the bond-forming event, which, contrast to conventional methods, generates reactive cationic products. Mechanistic studies suggest process operates via transmetalation of an aryl organoboron Cu...

The lowering of the CuII→CuI reduction temperature for subnano CuO particles (ca. 1 nm) was demonstrated, compared to nanoparticles, which monitored by in situ XAFS H2-TPR experiments. enhanced performance with a release atomic oxygen from copper oxide is attributed surface-strained structure and elongation Cu−O bonds.

Jahn–Teller distortions are often observed in CuII-containing complex oxides resulting remarkable changes of physical properties. Tuning the with pressure has attracted considerable interest but is less studied high-entropy (HEOs). We found that can suppress structural originating from effect CuO6 octahedra rock salt-type (Mg0.2Ni0.2Co0.2Zn0.2Cu0.2)O HEO and significantly modify its electronic ...

A method was developed for the separation of CdII, PbII, PtII, CoII, NiII, BiIII, CrII, CuII and HgII bis(2-hydroxyethyl)dithiocarbamate (HEDTC) complexes by micellar electrokinetic capillary chromatography. The complexes were formed by pre-capillary reaction of the metal ions with an excess of the ligand and then separated using a 100 mm borate buffer (pH 9.2) containing 4% methanol (v/v), 10 ...

The crystal structure of L’Cu(Me2CO)Nd(NO3)3 (L’ = N,N’-bis(2-hydroxy-3-methoxybenzylidene)-ethylenediamine) was determined and the magnetic properties of the complex were investigated. (C18H18N2O4)Cu(C3H6O)Nd(NO3)3, monoclinic, space group P21/c, with a = 9.8792(9), b = 18.904(4), c = 15.667(2) Å, β = 95.360(10)◦ , V = 2913.1(8) Å3, Z = 4. The central region of the complex is occupied by CuII ...

Six novel one-dimensional chloro-bridged ReIVCuII complexes of formula {[Cu(L)4][ReCl6]}n, where L = imidazole (Imi, 1), 1-methylimidazole (Meim, 2), 1-vinylimidazole (Vim, 3), 1-butylimidazole (Buim, 4), 1-vinyl-1,2,4-triazole (Vtri, 5) and N,N'-dimethylformamide (DMF, 6) are characterised structurally, magnetically and theoretically. The structures exhibit significant differences in Cu-Cl bon...