苯并18-冠-6配合物[K(B18-C-6)]SCN的合成与结构分析

Synthesis and Crystal Structure Analysis of B18-Crown-6 Complex [K(B18-C-6)]SCN

苯并 18 -冠 - 6 (B18- C- 6 )与 K2 [Cd(SCN) 4 ]反应 ,得到了 [K(B18- C- 6 ) ]SCN配合物。通过元素分析、红外光谱、单晶 X射线衍射进行了结构分析。该配合物为单斜晶系 ,空间群 P2 (1) / c,晶体学数据 :a=0 .996 0(3) nm,b=2 .5 0 97(7) nm,c=0 .8374 (2 ) nm,β=10 6 .5 19(5 )°,V=2 .0 0 6 7(10 ) nm3 ,Z=4 ,F(0 0 0 ) =86 4,R1=0 .0 4 2 9,w R2 =0 .0 5 75。结构分析表明 ,该配合物由一个 [K(B18- C- 6 ) ]配阳离子和一个 SCN阴离子组成 ,配合物的两个分子通过 K+ -

Benzo-18-crown-6 complex:[K(B18-C-6)]SCN was isolated and characterized by elemental analysis,IR and X-ray diffraction analysis.The complex belongs to monoclinic crystal,and the space group is P2(1)/c with cell dimensions of a=0.9960(3)nm,b=2.5097(7)nm,c=0.8374(2)nm,β=106.519(5)°,V=2.0067(10)nm 3,Z=4,F(000)=864,R 1=0.0429 and wR 2=0.0575.The complex is made up of one[K(B18-C-6)] cation and one SCN anion.They form one-dimensional chain structure through K +-π interactions between adjacent [K(B18-C-6)] and SCN units.