Ureyleno crown ethers 2 and 3 bind with 2 equiv of Li+ cooperatively and selectively over other alkali metal ions such as Na+, K+, and Cs+. The binding constant for 3 was found to be 3.0 x 10(7) (L/mol)(2).
LUKYANENKO N. G.; KIRICHENKO T. I.; LIMICH V. V., SYNTHESIS,(1986) N 11, 928-930
作者:LUKYANENKO N. G.、 KIRICHENKO T. I.、 LIMICH V. V.