Abstract
All ten oxygen atoms of the acyclic oligomer 1c participate in the coordination of Ba2+ in the ''scorpion'' complex 1c. Ba(SCN)2. Me2CO. The eleventh coordination site is occupied by the acetone molecule. A further characteristic of the complex are strong O-H...N hydrogen bonds to the thiocyanate counterion. The ligands 1 also exhibit a high selectivity for cations with ionic radii of 1.2-1.3 angstrom, which could be explained with the help of molecular modeling studies.
Original language | English |
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Pages (from-to) | 1404-1406 |
Number of pages | 3 |
Journal | Angewandte Chemie International Edition in English |
Volume | 29 |
Issue number | 12 |
Publication status | Published - Dec 1990 |
Keywords
- HOST-GUEST COMPLEXATION
- CROWN ETHERS
- POLYETHERS
- DERIVATIVES
- IONOPHORES
- MOLECULES
- CHEMISTRY
- SOLVENTS
- LECTURE
- CATIONS