镍-吡啶配合物(acac)(NO_(3))Ni(2-NH_(2)Py)_(2)和[NiCl(phen)(DMF)(μ-Cl)]_(2)的合成与结构  

Syntheses and structures of Nickel-pyridine complexes of(acac)(NO_(3))Ni(2-NH_(2)Py)_(2) and[NiCl(phen)(DMF)(μ-Cl)]_(2)

作　　者：李理[1] 袁福根 LI Li;YUAN Fugen(School of Chemistry and Life Sciences,SUST,Suzhou 215009,China)

机构地区：[1]苏州科技大学化学与生命科学学院,江苏苏州215009

出　　处：《苏州科技大学学报（自然科学版）》2023年第2期51-57,共7页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：苏州科技大学自然科学类校级科研基金青年项目(341512304)。

摘　　要：合成了两个新颖的镍-吡啶配合物(acac)(NO_(3))Ni(2-NH_(2)Py)_(2)(1)和[NiCl (phen)(DMF)(μ-Cl)]_(2)(2)(acac=乙酰丙酮,2-NH_(2)Py=2-氨基吡啶,phen=1,10-邻菲罗啉,DMF=N,N’-二甲基甲酰胺),利用元素分析、红外光谱和X光单晶衍射表征了产物的成份和结构。配合物1是首个混配型镍-2-氨基吡啶配合物。由于受不对称配位环境的影响,配合物1中两分子2-氨基吡啶的-NH_(2)指向相同的方向形成cis构型;分子间通过氨基和酸根形成的氢键在空间延伸形成三维超分子网络结构。配合物2中,由于DMF参与配位,一个Ni^(2+)与一分子phen配位形成了桥联双核结构;分子间通过C-H…Cl氢键在bc面形成二维超分子网络结构。Two novel nickel-pyridine complexes of(acac)(NO_(3))Ni(2-NH_(2)Py)_(2) and[NiCl(phen)(DMF)(μ-Cl)]_(2)(acac=acetylacetonate,2-NH_(2)Py=2-aminopyridine,phen=1,10-phenanthroline,DMF=N,N’-dimethylformamide)were synthesized and characterized by elemental analysis,IR and single-crystal X-ray diffraction.(acac)(NO_(3))Ni(2-NH_(2)Py)_(2) is the first heteroleptic Ni-2-NH_(2)Py complex.Due to the asymmetrical coordination environment,two molecules of 2-NH_(2)Py in(acac)(NO_(3))Ni(2-NH_(2)Py)_(2) coordinate to a Ni^(2+)ion in a cis-configuration.There are intermolecular hydrogen bonds between NH_(2) groups and the neighbouring nitrate,developing to a 3D supramolecular network.In[NiCl(phen)(DMF)(μ-Cl)]_(2),a Ni^(2+)ion is coordinated by a 1,10-phenanthroline to form a dimer because DMF molecule participates in the coordination.The molecules of[NiCl(phen)(DMF)(μ-Cl)]_(2) link each other via hydrogen bonds of C-H…Cl to construct a 2D supramolecular network in the bc face.

关 键 词：镍 2-氨基吡啶 1 10-邻菲罗啉 乙酰丙酮 晶体结构 

分 类 号：O614.813[理学—无机化学]