Lithium ion-crown ether complexes in a molten salt

Abstract

Abstract

Formation of Complexes in RTIL and Ion Separations

“…At the same time, the stability constants published evidently have different quality. For example, all constants presented in (Eyring et al, 1993) have too high SD to be treated by IUPAC even as provisional. Indeed, logK 1 values for Li + complexes with 12-crown-4, 15-crown-5, benzo-15-crown-5 (Bz-15-crown-5) and 18-crown-6 (18C6) in a mixture of RTILs are reported to be 3.1±2.3, 4.1±3.5, 3.5±2.9 and 1.8±0.6 respectively (Eyring et al, 1993).…”

“…For example, all constants presented in (Eyring et al, 1993) have too high SD to be treated by IUPAC even as provisional. Indeed, logK 1 values for Li + complexes with 12-crown-4, 15-crown-5, benzo-15-crown-5 (Bz-15-crown-5) and 18-crown-6 (18C6) in a mixture of RTILs are reported to be 3.1±2.3, 4.1±3.5, 3.5±2.9 and 1.8±0.6 respectively (Eyring et al, 1993). The constants presented in (Lertlapwasin et al, 2010) are not actually the stability constants, but are some effective ones.…”