caa a22 4500 465808115 CHVBK 20180323112108.0 cr unu---uuuuu 170327e19900501xx s 000 0 eng 10.1007/BF00641345 doi (NATIONALLICENCE)springer-10.1007/BF00641345 Effect of rigid fragments in the macrocycle on the adaptation of crown ethers to alkali-metal ions [Elektronische Daten] [L. Trigub, V. Kuz'min, P. Kodachenko] Complexation selectivity curves were obtained by theoretical conformational analysis and penalty functions in terms of the conformational factors in the following crown ethers: 15-crown-5; benzo-15-crown-5: 18-crown-6; benzo-18-crown-6; dibenzo-18-crown-6; cyclohexano-18-crown-6. In the last case the effect of cis—trans isomerism in the bridging bonds on the selectivity of complexation with the ligand was investigated. Analysis of the selectivity curves shows that the introduction of aromatic fragments into the macrocycle reduces its adaptive capabilities. The complexation selectivity of the ligands from the selectivity curves is compared with the experimental stability series of the crown ether complexes with alkali metals. Plenum Publishing Corporation, 1990 Trigub L. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut Kuz'min V. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut Kodachenko P. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut Theoretical and Experimental Chemistry Kluwer Academic Publishers 26/3(1990-05-01), 332-336 0040-5760 26:3<332 1990 26 11237 https://doi.org/10.1007/BF00641345 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00641345 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Trigub L. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut NATIONALLICENCE 700 1- Kuz'min V. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut NATIONALLICENCE 700 1- Kodachenko P. A. V. Bogatskii Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa aut NATIONALLICENCE 773 0- Theoretical and Experimental Chemistry Kluwer Academic Publishers 26/3(1990-05-01), 332-336 0040-5760 26:3<332 1990 26 11237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer