苯并15冠5钯配合物：［K(B15C5)2］2［Pd(SCN)4］的合成与结构研究

摘要

合成了苯并15冠5与钯生成的配合物：［K(B15C5)2］2［Pd(SCN)4］，并通过元素分析、红外光谱及X射线单晶结构分析进行了表征。配合物为单斜晶系、空间群P21。晶体学数据：a=1.20430(7)，b=1.93299(10)，c=1.56680(9)nm，β=108.1190(10)°，V=3.4665(3)nm3，Z=2，F(000)=1424,R1=0.0500,wR2=0.1549。配合物由两个［K(B15C5)］+2配阳离子和一个［Pd(SCN)4］2-配阴离子组成。四个硫氰酸根的硫原子与钯原子配位，［Pd(SCN)4］2-为平面方形构型。K+与2个冠醚环的10个氧原子成键而形成夹心型结构。两个苯并15冠5的苯环相对钾原子呈反式排列。%The title compound:bis［bis(2,3,5,6,8,9,11,12-octahydro-benzopentaoxacyclopentadecin)-potassium］tetrathiocyanatopalladate,［K(B15C5)2］2［Pd(SCN)4］,has been isolated and characterized by element analysis,IR and X-ray diffraction analysis.The complex belongs to monoclinic, space group P21 with cell dimensions:a=1.20430(7),b=1.93299(10),c=1.56680(9)nm,β=108.1190(10)°,V=3.4665(3)nm3,Z=2,F(000)=1424,R1=0.0500,wR2=0.1549.Pd atom is coordinated by four S atoms and ［Pd(SCN)4］2- is square planar configuration.K+ is coordinated by ten oxygen atoms to form a sandwich structure with two crown ether rings.Two benzene rings from two B15C5 molecules are trans-orientation with respect to potassium ion.