Abstract
Structurally authenticated complexes of the cone-shaped p-sulfonatocalix[4]arene and conformationally flexible p-sulfonatocalix[6]arene devoid of co-ligands/ancillary molecules are limited. Early and late members of the lanthanide series as their trivalent ions, La3+, Er3+, and Yb3+, form complexes from aqueous media under these conditions. For La3+ and Er3+, distinct hydrophobic and hydrophilic bilayers are formed with p-sulfonatocalix[4]arene, whereas for Yb3+, two complexes form that deviate from the well-known bilayer arrangement of calixarenes. Replacing the calixarene with p-sulfonatocalix[6]arene results in a hydrogen-bonded network with alternating hydrophobic-hydrophilic layers associated with primary coordination of Yb3+, with the larger macrocyclic calixarene in a partial cone conformation.
Original language | English |
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Pages (from-to) | 570-578 |
Number of pages | 9 |
Journal | Australian Journal of Chemistry |
Volume | 73 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2020 |
Keywords
- Mapping Out
- Diversity
- Lanthanide(III)
- Coordination
- p-Sulfonatocalix[4,6]arenes