MOBILITY AND IONIC ASSOCIATION OF LITHIUM AND QUATERNARY AMMONIUM-SALTS IN PROPYLENE CARBONATE AND GAMMA-BUTYROLACTONE

被引：462

作者：

UE, M

机构：

[1] Mitsubishi Petrochemical Company, Limited, Tsukuba Research Center, Inashiki, Ibaraki 300-03, 8-3-1 Chuo, Ami

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1994年 / 141卷 / 12期

关键词：

D O I：

10.1149/1.2059336

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The conductivities of lithium and quaternary ammonium salts have been measured in propylene carbonate and gamma-butyrolactone at 25 degrees C over the concentration range of 10(-2) to 10(-3) mol dm(-3). The limiting molar conductivities and the ionic association constants were calculated by the expanded Fuoss-Hsia equation. The mobility of anions in both solvents decreased in the following order: BF4- > ClO4- > PF6- > AsF6- > CF3SO3- > (CF3SO2N- > C4F0SO3- > BPh(4)(-) The association constants increased in the following order: Li(CF3SO2)(2)N, LiAsF6 < LiPF6 < LiClO4 < LiBF4 < LiC4F0SO3 < LiCF3SO3, while those of the corresponding tetraethylammonium salts were leveled by electrostatic shielding effect of alkyl groups. These results were correlated with ionic radii obtained by MM2 calculation.

引用

页码：3336 / 3342

页数：7

共 70 条

[1] CONDUCTANCE OF LITHIUM AND SODIUM PERCHLORATES AND OF SOME QUATERNARY AMMONIUM HALIDES AND PERCHLORATES IN A PROPYLENE CARBONATE PLUS TETRAHYDROFURAN MIXTURE AT 25-DEGREES-C [J].