中文摘要：

合成了一个新颖的离子对化合物[TBA][Ni（dddt）2]（1）（TBA=tetra-N-butylammonium,dddt^2-=5,6-dihydro-1,4-dithiin-2,3-dithiolate）,单晶衍射结果表明化合物1属于单斜晶系,空间群为P21/c,晶体不对称单元含1个[Ni（dddt）2]^-阴离子以及1个[TBA]^＋阳离子.在[Ni（dddt）2]^-阴离子中,Ni离子呈现平面正方形配位几何构型,相邻阴离子间存在弱的S…S相互作用.在化合物1晶体中,阴、阳离子间弱的堆积作用以及静电作用将化合物1连接形成三维分子固体.

英文摘要：

A ion-pair compound,[TBA][Ni（dddt）2]（1）（TBA = Tetra-N-butylammonium,dddt^2-= 5,6-dihydro-1,4-dithiin-2,3-dithiolate）,has been synthesize and characterized.The X-ray single crystal studies reveals that 1 crystallizes in the monoclinic space group P21/c,and its asymmetric unit is composed of one [Ni（dddt）2]^-anion together with one [TBA]^＋cation.The NiS4 core in the [Ni（dddt）2]^-anion exhibits a perfect planar geometry.There exist weak S…S interactions between the adjacent [Ni（dddt）2]^-anions.A three-dimensional molecular solid was formed in Compound 1 through the weak accumulation effect and the electrostatic interaction in the crystal of Compound 1.