四氯合铜(Ⅱ)-苄基吡啶季铵盐的合成和晶体结构  

Synthesis and crystal structure of tetrachlorocuprate(Ⅱ)-benzylpyridinium quaternary ammonium salt

作　　者：林菁华[1] 周海练[1] 刘湘粤[1] 蔡镇锋[1] 吴展鹏 韩松[1,2] 周家容[1,2] 倪春林[1,2] 

机构地区：[1]华南农业大学理学院,广东广州510642 [2]华南农业大学生物材料研究所,广东广州510642

出　　处：《化学研究》2012年第1期75-79,共5页Chemical Research

基　　金：华南农业大学2011年大学生创新实验计划项目(L11044);华南农业大学"211工程"三期重点建设项目(2009B010100001);广东省科技计划项目(2008B080701011)

摘　　要：合成了1种含四氯合铜配阴离子的季铵盐[Bz6HPy][BzPy][CuCl4]([Bz6HPy]+和[BzPy]+分别为苄基六氢吡啶和苄基吡啶的鎓离子).利用元素分析仪、红外光谱仪、电子喷雾质谱仪和X射线衍射仪表征了合成产物的组成和结构.结果表明,合成的季铵盐为正交晶系,空间群Pbca,晶胞参数为a=1.581 8(2)nm,b=1.762 5(2)nm,c=1.841 7(3)nm,V=5.134 5(5)nm3,Z=8,Dc=1.428g/cm3,GOOF=1.042,R1=0.051 2,wR2=0.143 7.该季铵盐分子由1个四面体形的[CuCl42]-阴离子,1个[Bz6HPy]+阳离子和1个[BzPy]+阳离子组成;相邻两个[BzPy]+阳离子之间通过吡啶环之间的π…π堆积作用形成二聚体,而阴、阳离子之间经由C-H…Cl和N-H…Cl氢键作用形成网状结构.A new quaternary ammonium salt containing [CuCl4]2- anion, [Bz6HPy] [BzPy] [CuCl4] （[Bz6HPy]＋ refers to benzylpiperidinium and [BzPy]＋ refers to benzylpyridinium）, was synthesized. The composition and structure of the synthesized product were analyzed by means of elemental analysis, infrared spectrometry, electrospray ionization-mass spectrometry, and single crystal X-ray diffraction. Results show that as-synthesized quaternary ammonium salt belongs to the orthorhombic system of space group Pbca, with cell parameters a = 1. 581 8（2） nm, b = 1. 762 5（2）nm, c = 1. 841 7（3） nm, V = 5. 134 5（5） nm3,Z = 8, Dc 1.428 g/cma, GOOF = 1. 042 , R1= 0.0512, and wR2= 0.143 7. It consists of one tetrahedral [CuCl4]2- anion, one [Bz6HPy]＋ cation and one [BzPy]＋ cation. The adjacent [BzPy]＋ cations form a dimer through π…π stacking interaction between the pyridine rings. The anions and cations form a network structure through C--H...Cl and N-H…Cl hydrogen bonds.

关 键 词：四氯合铜(II)配阴离子 六氢吡啶 苄基吡啶离子 晶体结构 

分 类 号：O614.1[理学—无机化学]