丁二酮肟双核铜配合物的合成、结构和性能表征

The structure of Cu₂(Hdmg)₄] (Hdmg=dimethylglyoxime anion) has been determined by X-ray crystallog-raphy. It is monoclinic, space group P2₁/n, with Z=2. The lattice parameters: a=0.71601(14)nm; b=1.7044(3)nm; c=1.0126(4)nm; β=113.89(2)°; M_r=587.52 (C₁₆H₂₈Cu₂N₈O₈); V=1.1299(5)nm³. The copper atom lies in a distorted square-pyramidal environment. The four equatorial donors are four nitrogen atoms from bidentate chelate dimethylglyoxime anion ligands. The oxygen atom from the dimethylglyoxime ligand acts as a bridging atom occupying the apical position of the symmetry-related copper atom in the dimer structure. The two dimethylglyoximes bridge two copper atoms to form a six-member Cu₂O₂N₂ ring, respectively. The thermal gravity (TG) data indicate that the compound Cu₂(Hdmg)₄] undergoes two exothermic reactions with loss of the organic ligand to give residue CuO. CCDC: 208729.

Synthesis, Structure and Properties of Dinuclear Copper (Ⅱ) Complexes Containing Dimethylglyoxime: [Cu2(Hdmg)4 ]

The structure of Cu2(Hdmg)4] (Hdmg = dimethylglyoxime anion) has been determined by X-ray crystallog-raphy. It is monoclinic, space group P21/n, with Z =2. The lattice parameters: a =0. 71601(14) nm; b =1.7044(3) nm; c=1.0126(4) nm; β=113.89(2)°; Mr=587.52 (C16H28Cu2N8O8); V=1.1299(5) nm3. Thecopper atom lies in a distorted square-pyramidal environment. The four equatorial donors are four nitrogen atomsfrom bidentate chelate dimethylglyoxime anion ligands. The oxygen atom from the dimethylglyoxime ligand acts as abridging atom occupying the apical position of the symmetry-related copper atom in the dimer structure. The twodimethylglyoximes bridge two copper atoms to form a six-member Cu2O2N2 ring, respectively. The thermal gravity(TG) data indicate that the compound Cu2(Hdmg)4] undergoes two exothermic reactions with loss of the organicligand to give residue CuO. CCDC: 208729.