双-N-对甲苯基水扬醛亚胺合Hg_2Cl_4的晶体结构

CRYSTAL STRUCTURE OF BIS [N-PHENYLSALICYLALDIMINATO] Hg_2Cl_4

在研究以N-对甲基水扬醛亚胺为配体的过渡金属络合物时发现,该配体分子可以羟基氧做为桥连原子与HgCl_2形成双核络合物。本文报导其晶体结构测定结果。

The crystal structure of Hg_2Cl_4(C_6H_4-O-CH_3)_2 has been determined and refined from three-dimensional X-ray data. The crystal are triclinic (space group P(?)) with one molecule in a unit cell with the dimensions a=7.516(6), b=10.107(5), c=10.119(4)×10^(-10)m, α=89.38(4), β=72.42(4), γ=77.23(6)°, v=713.3×10^(-10)m^3. The stucture comprises discrete Hg_2Cl_4(C_6H_4-O-CH_3)_2molecules with a highly distorted tetrahedral conforguration on around the mercury atom. The mean bond-legths are: Hg-Cl=2.307×10^(-10)m, Hg-O=2.635×10^(-10)m. The bond angles at the mercury atom are Cl-Hg-O 90.9°,Cl-Hg-CI 165.1°and O-Hg-O 89.6°.