We report the selective association of a novel bipolarofacial, bowl-shaped molecule (I) with Fe3+ and PdCl42 ions. UV-vis titration experiments and Langmuir isotherm measurements revealed stronger association with the palladate over the iron ions, both in homogeneous organic medium as well as at the airwater interface. Interestingly, we found that the complexation is solvent-dependent, suggesting that I undergoes isomerization prior to association with the metal ions.
Bibliographical noteFunding Information:
This work was partially supported by the Israel Science Foundation (Contract 485/06 ).
- Langmuir films
- Solvent-dependent complexation