Abstract: A new assemble crystal[Co(H2dmg)2Cl2]3·[Co(H2dmg)2Cl(OH)]·[Co(Hdmg)(phen)]·(H2O)4 (H2dmg＝dimethylglyoxime, phen＝1,10-Phenanthroline) was synthesized and its structure was determined by X-ray diffraction method. The five central Co2+ ions and relevant ligands form a unit which piles up in space.The space group is P-1,cell parameters a=1.3738nm,b=1.4396nm,c=1.8656nm. Molecular structure and spectroscopic properties of the complex were also discussed in this article.

Key words: A new assemble crystal[Co(H2dmg)2Cl2]3·[Co(H2dmg)2Cl(OH)]·[Co(Hdmg)(phen)]·(H2O)4 (H2dmg＝dimethylglyoxime, phen＝1,10-Phenanthroline) was synthesized and its structure was determined by X-ray diffraction method. The five central Co2+ ions and relevant ligands form a unit which piles up in space.The space group is P-1,cell parameters a=1.3738nm,b=1.4396nm,c=1.8656nm. Molecular structure and spectroscopic properties of the complex were also discussed in this article.