论文部分内容阅读
由乙酰丙酮和1R,2R-环己二胺缩合得到N,N’-双(乙酰丙酮)-1R,2R-环己二胺的席夫碱配体L,然后与MnCl2.4H2O进行配位反应,得到了配合物[Mn(L)Cl2]n.nH2O,并用元素分析、FT-IR和X-射线单晶衍射进行了表征。结果表明,配合物属于单斜晶系,空间群P21,晶体学参数:a=9.2719(14),b=18.871(3),c=24.767(4),β=98.346(4),Z=2,Dc=0.854g.cm-3,F(000)=1164,R1=0.1201,wR2=0.2968[Ⅰ>2σ(Ⅰ)]。在配合物中,每个Mn(Ⅱ)的配位环境都是三角双锥,每个Mn(Ⅱ)离子同时与3个配体配位,每个配体L通过其两臂乙酰丙酮亚胺单元的端基氧原子同2个金属离子配位桥连形成二维网状结构。
The Schiff base ligand L of N, N’-bis (acetylacetonato) -1R, 2R-cyclohexanediamine was obtained from the condensation of acetylacetone with 1R, 2R-cyclohexanediamine and then complexed with MnCl2.4H2O The complex [Mn (L) Cl2] n.nH2O was obtained and characterized by elemental analysis, FT-IR and single crystal X-ray diffraction. The results show that the complex belongs to the monoclinic space group P21 with the following crystallographic parameters: a = 9.2719 (14) , b = 18.871 3, c = 24.767 4, β = 98.346 4 , Z = 2, Dc = 0.854g.cm-3, F (000) = 1164, R1 = 0.1201, wR2 = 0.2968 [I> 2σ (I)]. In the complex, each Mn (Ⅱ) coordination environment is triangular double cone, each Mn (Ⅱ) ions coordinate with three ligands, each ligand L through its two arms acetylacetoneimine Unit of the terminal oxygen atoms with two metal ions bridged to form a two-dimensional network structure.