一维链状冠醚配合物:[Na(18-C-6)]_2[Zn(mnt)_2]的合成与晶体结构  

One-dimensional Chain Crown Ether Complex: Synthesis and Crystal structure of Na(18-C-6)]_2[Zn(mnt)_2]

作　　者：李大成[1] 窦建民[1] 

机构地区：[1]聊城大学化学化工学院,山东聊城252059

出　　处：《聊城大学学报（自然科学版）》2003年第3期6-8,共3页Journal of Liaocheng University:Natural Science Edition

摘　　要：研究了18冠6与Na2[Zn(mnt)2]的反应.通过元素分析、红外光谱及X射线单晶衍射对得到配合物[Na(18-C-6)3]2[Zn(mnt)2]的结构进行了表征.结果表明:结果配合物为单斜晶系,空间群c2/c,晶体学数据:a=2.241 8(6),b=1.135 9(3),c=1.988 7(6)nm,β=120.4°,V=4.368(2)nm3,Z=4,Dcaled.=1.399 mg/m2,F(000)=1920,R1=0.036 2,wR2=0.0560.配合物的结构由两个[Na(18-C-6)]+和一个[Zn(mnt)2]2-组成,[Zn(mnt)2]2-畸变的四面体结构.[Na(18-C-6)]+中的钠原子除与mnt氮原子成键外,还与相邻冠醚中的氧原子成键,形成了一维无限链状结构.The rections of 18-crown-6 with Na2[Zn(mnt)2]were studied and the complex [Na(18-C-6)]2[Zn(mnt)2]was characterized by elemental analysis,IR spectrum and X-ray diffraction analysis. 1 belongs to Monoclinic, space group c2/c with celldimensions:a = 2. 241 8(6),6=1.135 9(3),c = 1. 9887 (6) nm,β=120. 4 deg,V = 4. 368 (2) nm3,Z = 4,Dcalcd=l. 399 mg/m3,F(000) = 192 0,R1 = 0. 036 2, wR2 = 0. 056 0. It is conformed that four coordinating S atoms around Zn2+cation form two tetrahedral complexes each displays an one-dimensional chain of[Na(18-C-6)3+complex cations and [Zn(mnt)2]2~ complex anion bridged by Na-N interactions between adjacent[Na(18-C-6)]+ units. Two adjacent mole-cles bridged by two bonds of O-Na.

关 键 词：一维链状 合成 晶体结构 冠醚配合物 二腈烯二硫醇阴离子 MNT 非线性光学效应 

分 类 号：O623.423[理学—有机化学]