Complexation and Catenation in Aqueous Media Using a Self‐Assembled PdII Metallacyclic Receptor |
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| Authors: | Prof. Marcos D. García Prof. Carlos Peinador Prof. José M. Quintela |
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| Affiliation: | Departamento de Química Fundamental, Facultad de Ciencias and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coru?a, Rúa da Fraga 10, 15071 La Coru?a (Spain), Fax: (+34)?981167065 |
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| Abstract: | A M2L2 rectangular‐shaped metallacycle, obtained by metal‐directed self‐assembly of a 2‐(pyridin‐4‐ylmethyl)‐2,7‐diazapyrenium salt and [(en)Pd (NO3)2] (en=ethylenediamine), has been investigated as a molecular receptor for a wide range of aromatic substrates in water. Complexation and catenation of the receptor with selected mono‐ and polycyclic aromatic substrates produced 1:1 inclusion complexes and [2]catenanes in a highly efficient fashion, as determined by NMR and UV/Vis spectroscopic techniques, as well as single‐crystal X‐ray crystallography. Furthermore, the thermodynamic and kinetic features of the complexation processes have been analyzed for selected model guests. |
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| Keywords: | catenanes host– guest chemistry inclusion compounds molecular recognition self‐assembly |
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