二(2-氨乙基)-1,3-丙二胺与镍(Ⅱ)的配合物的合成和晶体结构

SYNTHESES AND CRYSTAL STRUCTURES OF\= N,NBIS(2AMINOETHYL)1,3PROPYL\= DIAMINE COMPLEXES WITH NICKEL()

本文报道了二（２－氨乙基）－１，３－丙二胺［缩写为（２，３，２）］与镍的两个新配合物：［（２，３，２）Ｎｉ（ＩｍＨ）２］（ＣｌＯ４）２和［（２，３，２）２Ｎｉ２（Ｉｍ）］（ＣｌＯ４）３的合成和晶体结构（其中ＩｍＨ是咪唑）。配合物［（２，３，２）Ｎｉ（ＩｍＨ２）］（ＣｌＯ４）２属于正交晶系，空间群Ｐｎａ２１，晶胞参数为：ａ＝１６．７９８（３），ｂ＝１５．７２４（３），ｃ＝８．８９１（２），Ｚ＝２。Ｒ１＝０．０５６６，ｗＲ２＝０．０６５９。在配合物正离子中，Ｎｉ与（２，３，２）的四个配位Ｎ原子和两个咪唑的两个配位Ｎ原子构成ＮｉＮ６的八面体配位构型，（２，３，２）采取顺式构象。配合物［（２，３，２）２Ｎｉ２（Ｉｍ）］（ＣｌＯ４）３属于单斜晶系，空间群Ｃ２，晶胞参数为：ａ＝１２．０４４（１），ｂ＝１２．２２４（２），ｃ＝１１．８６８（１）；β＝１０８．０４°；Ｚ＝２，Ｒ１＝０．０３８４，ｗＲ２＝０．０５１６。在配合物正离子中，咪唑桥联两个等价的（２，３，２）Ｎｉ，每个镍原子都有四方锥的配位环境，（２，３，２）的四个配位Ｎ原子构成赤道平面，咪唑Ｎ原子占据轴向位置，分子内两个金属间的距离为６．

; The structure of new complex 2,3,2) Ni(ImH)\-2](ClO\-4)\-2 where (2,3,2) is N,Nbis(2aminoehyl)1,3propyldiamine and ImH is imidazole, consists of a 2,3,2) Ni(ImH)\-2]\+\{2+\} cation and two perchlorates. The nickel() atom in the cation has distorted octahedronal coordination geometry and is sixcoordinated by six N atoms, four of which from (2,3,2) and two from the imidazoles. The (2,3,2) adopts the cisconformation.\;The structure of new complex 2,3,2) \-2Ni\-2(Im)](ClO\-4)\-3 consists of one 2,3,2) \-2Ni\-2(Im)]\+\{3+\} cation and three perchlorates. Each copper atom in the cation is fivecoordinate, with four (2,3,2) N atoms forming an approximate plane and a bridging imidazolate in the apical position of distorted tetragonal pyramid. The NiNi separation is 6.11.\;\;