Co(2,3-tri)(men)ClZnCl4体系中三个经式异构体的晶体结构

摘要

Among the twenty isomeric forms which are possible for [Co(2, 3-tri) (men)Cl] [ZnCl4] system (2, 3-tri = N-rn(2-Aminoethyl) - 1, 3-propanediamine; men = N-methylethylenediamine), the structures of three mer-isomers havernbeen determined by single crystal X-ray diffractions, crystal data: for (1) m3-[ZnCI4] (monoclinic P21/c, a =rn8. 0874(18), b = 15. 135(3), c = 15. 426(4) A, β=99. 303(6)°, Z =4), for (2) m4-[ZnCl4] (orthorhombicrnP212121, a =9. 348(4), b = 12. 437(6), c = 15. 666(8)A, Z =4) and for (3)m4＇-[ZnCl4] (orthorhombic P212121,rna = 9. 302(4), b = 12. 393(9), c = 15. 621 (9)A, Z =4).%在[Co(2,3-tri)(men)Cl][ZnCl4](2,3-tri=N-(2-氨乙基)-1,3-丙二胺;men=N-甲基乙二胺)体系中可能的几何异构体的数目多达二十个,其中经式异构体八个,面式异构体十二个.用单晶X-射线衍射分析方法解析了三个获得单晶的经式异构体,它们的晶体学参数:(1)m3-[ZnCl4](monoclinicP21/c,a=8.0874(18),b=15.135(3),c=15.426(4)A,β=99.303(6)°,Z=4),(2)m4-[ZnCl4](orthorhombic P212121,a=9.348(4),b=12.437(6),c=15.666(8)A,Z=4)and(3)m4＇-[ZnCl4]( orthorhombic P212121,a=9.302(4),b=12.393(9),c=15.621(9)A,Z=4).