双冠醚与碱金属高氯酸盐的配合物  

Synthesis and Characterization of the Complexes of Alkali Metal Perchlorates with 2,2′-Dinitro-4,5,4′,5′-Bis-(15一Crown-5)-Dibenzo Disulfide

作　　者：张有明[1] 苏碧泉[1] 卢爱茹 张联祥[1] 

机构地区：[1]西北师范大学化学系

出　　处：《西北师范大学学报（自然科学版）》1994年第4期47-50,共4页Journal of Northwest Normal University(Natural Science)

基　　金：甘肃省教委科研基金

摘　　要：研究了高氯酸锂、钠、钾与２，２′－二硝基－４．５，４′．５′－双并－（１５－冠－５）－二苯。基二硫化物（Ｌ）在有机溶剂中的反应。制备出了组成为ｍＭＣｌＯ＿４·ＬｎＨ＿２Ｏ（Ｍ＝Ｌｉ，，ｎ＝２，ｎ＝１；Ｍ＝Ｎａ，ｍ＝ｎ＝２；Ｍ＝Ｋ，，ｍ＝１，ｎ＝２）新的固体配合物，运用红外光谱、紫外光谱、摩尔电导讨论了金属离子与双冠醚及高氯酸根的配位情况。结果表明，金属离子的直径与冠醚孔穴直径之比值Ｄ＿ｉ／Ｄ＿ｅ是影响其配位比的重要因素。Three new solid complexes of macfocyclic polyether ligand 2,2′- dinitiro-4,5,4′,5′- bis-(15-crown-5)-dibenzo disulfide with L￣+Na￣+K￣+perchlorate have been synthesized. The IR characteristicfrequencies of p_(Ar-O-R) and v_(R-O-R) of ligands shift to the lower wave nurnber side respectively upon com-plexation. The appearance of bands at 623～627cm￣(-1) indicatld that the,ClO_1 anion is not ccordinated tothe alkali metal ions.The UV spectra of these com plexes are not identical with those of free crownethers,the absorption bands arcattributed to intraligand transi tions π→π￣* which are changed when theligands are coordinated. The solubility behaviour of the complexes in some organic solvents are ob-served. Furtherrnore. the values of the molar conductance of the complexes indicattal that the complexesof Li￣+or Na￣+ behave as 1 : 2 eletrolytes and the complex of K￣+ behave as 1 :1 eletrolytes.

关 键 词：双冠醚 碱金属 高氯酸盐 配合物 

分 类 号：O614.11[理学—无机化学]