端烯基液晶冠醚推动钠离子在微液/液界面的转移

Sodium Ion Transfer Across Micro Water/1,2-DCE Interface Facilitated by Liquid Crystal Crown Ether

用循环伏安法研究新型载体端烯基液晶冠醚推动钠离子的转移 ,结果表明 ,钠离子的转移由扩散控制 .探讨了影响钠离子转移的因素 ,如端烯基液晶冠醚和钠离子的浓度等 .求算出端烯基液晶冠醚在 1 ,2 -二氯乙烷中的扩散系数为 ( 2 .6 1± 0 .1 2 )× 1 0 - 6cm2 /s,端烯基液晶冠醚和钠离子在 1 ,2 -二氯乙烷中所形成的配合物稳定常数 lgβo=5 .

The sodium ion transfer across the micro water/1,2 dichloroethane interface facilitated by a novel ionophore, liquid crystal crown ether was studied systematically. The sodium ion transfer facilitated by LCCE is controlled by diffusion studied by cyclic voltammetry. The diffusion coefficient of LCCE in 1,2 dichloroethane was calculated to be equal to (2 61±0 12)×10 -6 cm 2/s and the stability constant of the complex between Na + and LCCE was determined as lg β o=5 7 in 1,2 dichloroethane.