高氯酸锂与4-叔丁基苯并-15-冠-5配合物的远红外位移  

Far Infrared Shift of Lithium Perchlorate Complex with 4- tert -Butylbenzo-15-crown-5

作　　者：台夕市[1] 方胜强[1] 

机构地区：[1]兰州大学化学化工学院,兰州730000

出　　处：《高等学校化学学报》2000年第12期1809-1811,共3页Chemical Journal of Chinese Universities

摘　　要：The solid complex of lithium perchlorate with 4 tert butylbenzo 15 crown 5（4 t BB15C5） has been prepared in iodobenzene. The composition of the solid was determined as Li（4 t BB15C5）ClO 4 and its melting point was 119121 ℃. The far IR shift of the complex is obvious. The far IR absorption band of the complex containing 100% 6Li can be found by extrapolation, resolving the difficulty in obtaining a sample of 100% 6Li up to now. A relative reduced partition function ratio, [（ s/s′）f ] org , being 1.045 is calculated. Since the [ （s/s′）f ] aq of lithium perchlorate in solid state had been obtained as 1.025 and may act as that in aqueous phase, the phase equilibrium separation factor α may be obtained as 1.019 by the quotient of 1.045/1.025 for the extractive system of （4 t BB15C5） C 6H 5I/LiClO 4 H 2O. The value of α is just equal to the value of intrinsic separation factor （1+ ε p） described previously. [WT5HZ]The solid complex of lithium perchlorate with 4 tert butylbenzo 15 crown 5(4 t BB15C5) has been prepared in iodobenzene. The composition of the solid was determined as Li(4 t BB15C5)ClO 4 and its melting point was 119_121 ℃. The far IR shift of the complex is obvious. The far IR absorption band of the complex containing 100% 6Li can be found by extrapolation, resolving the difficulty in obtaining a sample of 100% 6Li up to now. A relative reduced partition function ratio, [( s/s′)f ] org , being 1.045 is calculated. Since the [ (s/s′)f ] aq of lithium perchlorate in solid state had been obtained as 1.025 and may act as that in aqueous phase, the phase equilibrium separation factor α may be obtained as 1.019 by the quotient of 1.045/1.025 for the extractive system of (4 t BB15C5) C 6H 5I/LiClO 4 H 2O. The value of α is just equal to the value of intrinsic separation factor (1+ ε p) described previously. [WT5HZ]

关 键 词：高氯酸锂 配合物 远红外位移 苯并冠醚 

分 类 号：O614.111[理学—无机化学]