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本文以1,4-丁二胺和乙酰丙酮进行缩合反应得到N,N′-双(乙酰丙酮)-1,4-丁二胺的 Schiff 碱配体L,然后将配体 L与AgNO3进行配位反应,得到配合物[Ag2(L)(NO3)2]n,并用元素分析,FT-IR和X-射线晶体衍射进行了表征。结果表明,配合物属于单斜晶系,空间群为 P21/c,晶体参数：a=0．73776(3)nm,b=1．52774(7)nm,c=0．96552(3)nm,β=106．6370(10),V=1．04269(7)nm3,Z=2,Dc=1．886 g·cm-3,R1=0．0443,wR2=0．1305．在配合物中,每个Ag( I)离子的配位模式均为扭曲四面体,分别与相邻配体的烯醇式氧原子,γ-C原子,两个硝酸根的氧原子配位,配体均表现为四齿配体,分别用两端β-酮亚胺单元的烯醇式氧原子,γ-C原子和四个Ag( I)离子配位形成一维链,一维链通过硝酸根和Ag( I)离子配位扩展形成三维网状结构。“,”The Schiff base ligand L[ N,N′-bis( acetylacetone)-1,4-butanediamine] was synthesized from condensation reaction of 1,4-butanediamine with acetylacetone. Ligand L was used for coordination with silver nitrate to obtain coordination complex[Ag2 ( L) ( NO3 ) 2 ] n;this complex was characterized by FT-IR spectroscopy,elemental analysis,and X-ray single-crystal diffraction anal-ysis. The results of structural analysis indicate that the complex crystallize in the monoclinic,space group P21/c,with the crystal cell parameters:a=0.73776(3)nm,b=1.52774(7)nm,c=0.96552(3)nm,β=106.6370(10),V=1042.69(7)nm3,Z=2,Dc=1. 886 g·cm-3 ,R1=0. 0443,wR2=0. 1305. The Complex coordination environment of Ag(Ⅰ) is a distorted tetrahedral geometry, being bound to oxygen atoms andγ-C atoms from two adjacent molecules of L as well as to two oxygen atoms from two bidentate ni-trate anion. Each L ligand links four metal atoms using both ends two oxygen atoms and γ-C atoms to generate a one-dimensional (1D)chain structure,A one-dimensional chain expanded into a three-dimensional(3D)network structure by nitrate coordinated Ag ( I) ion.