苯并15冠5配合物:[K(B15C5)_2]_2[Cd(NCS)_4]C_2H_4Cl_2的合成与结构研究  

Synthesis and Structure of Benzo-15-Crown-5 Complex withCadmium(Ⅱ) :[K(B15C5)_2]_2[Cd(NCS)_4]C_2H_4Cl_2

作　　者：李大成[1] 窦建民[1] 刘德云 刘颖 刘雪 

机构地区：[1]聊城师范学院化学化工学院,山东聊城252059 [2]聊城电视大学

出　　处：《聊城师院学报（自然科学版）》2001年第4期12-14,24,共4页Journal of Liaocheng Teachers University(Natural Science Edition)

摘　　要：合成了苯并15冠5与镐生成的配合物:[K(B15C5)2]2[Cd(NCS)4]C2H4Cl2,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.配合物为三斜晶系、空间群P-1.晶体学数据:a=1.2996(2),b=1.3542(2),c=2.3828(4)nm,α=94.109(4),β=91.477(3)°,γ=114.162(3)°,V=3.8093(11)nm3,Z=2,F(000)=1576,R1=0.0682,wR2=0.1693.配合物由两个[K(B15C5)]2+配阳离子和一个[Cd(NCS)4]2-配阴离子组成.四个硫氰酸根的氮原子与镉原子配位.[Cd(NCS)4]2-为四面体构型.K+与2个冠醚环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顺式排列.The Benzo-15-Crown-5 Complex [K(B15C5)2]2[Cd(NCS)4]C2H4Cl2 has been isolated and characterized by element analysis,IR and X-ray diffraction analysis. The complexe belongs to triclin-ic,space group PT with cell dimensions a = 1. 299 6(2),b=1. 345 2(2),c=2. 382 8(4) nrn,α=94. 109°,β = 91. 477(3)°,γ=114. 162°,V = 3. 809 3(11)nm3,Z=2,F(000) = 1576,Dc. =1. 355 mg m-3, R1 = 0. 068 2,wR2 = 0. 169 3. Cd atom is coordinated by four N atoms and [Cd(NCS)4]2-is terahedral structure.. 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 cis orientation with respect to potassium ion.

关 键 词：苯并15冠5 镉配合物 合成 结构表征 [K(B15C5)2]2[Cd(NCS)4]C2H4Cl2 晶体结构 

分 类 号：O614.242[理学—无机化学] O623.423[理学—化学]