[Co(N-(3-Aminopropyl)-1,3-propanediamine)(2-(Aminomethyl)pyridine) Cl][ZnCl_4]的一对差向异构体的合成及晶体结构

用过氧化物法合成了 Co(3,3-tri)(amp)Cl]ZnCl4]的两个经式异构体，晶体结构解析表明两者互为差向异构体。其中反式异构体 (仲氢相对于 Cl)晶体属单斜晶系，空间群 C2/c， a=2.7663(7)nm， b=0.9505(1)nm， c=1.8288(4)nm，β =105.57(2)°， V=4.632(1)nm3， Dc=1.706g· cm-3， Z=8， F000=2432.00，μ (MoKα )=23.51cm-1， R=0.033， Rw=0.041；顺式异构体 (仲氢相对于 Cl)晶体属三斜晶系，空间群， a=1.0790(2)nm， b=1.1749(1)nm， c=0.8920(1)nm，α =90.73(1)°，β =109.573(9)°，γ =80.60(1)°， V=1.0500(2)nm3， Dc=1.71g· cm-3， Z=2， F000=548.00，μ (MoKα )=25.73cm-1， R=0.022， Rw=0.030。两异构体中 Co3＋为六配位，其差异仅表现在 3,3-tri仲胺上氢的取向不同。

The Crystal Structures of a Pair of [Co(N-(3-Aminopropyl)-1, 3-propanediamine)(2-(Aminomethyl)pyridine)Cl][ZnCl4] Epimers

The crystal structures of a pair of Co(N-(3-Aminopropyl) -1, 3-propanediamine) (2- (Aminomethyl) pyridine)Cl] 2+ epimers have been determined. The crystals with the anti-epimers are monoclinic, space group C2/c with four molecules in the unit cell of dimensions a =2. 7663(7) nm, b=0.9505(1) nm, c=1.8288(4) nm, β=05.57(2)°, V=4.632(1) nm3, Dc=1.706g· cm- 3, Z = 8, F000 = 2432.00,μ(Mo Kα) = 23.51 cm-1, R = 0.033, Rw = 0.041 。 The crystals of the syn-epimer (the NH proton in 3, 3-tri refers to chloro in the complex) are triclinic, space group Pl with two nolecules in a unit cell of dimensions a = 1.0790(2) nm, b = 1.1749(1) nm, c =0.8920 (1) nm, α=90.73(1)°, β=109.573(9)°, γ=80.60(1)°, V=1.050.0(2) nm3, Dc=l.71g· cm- 3, Z = 2, F000 = 548.00, μ(Mo Kα) = 25.73cm-1, R = 0.022, Rw = 0.030.