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Combining coordination and hydrogen-bonds to form arene ruthenium metalla-assemblies
Auteur(s)
Appavoo, Divembal
Carnevale, Diego
In
Journal of Organometallic Chemistry, Elsevier, 2016/824//80-87
Mots-clés
Résumé
Three ureido-pyrimidone derivatives (N-L<sup>H</sup>) were used to generate in combination with four dinuclear arene ruthenium clips, (p-cymene) <sub>2</sub>Ru<sub>2</sub>(OO boolean AND OO)Cl<sub>2</sub> (OO boolean AND OO = oxalato, 2,5-dioxido-1,4-benzoquinonato, 2,5-dichloro-1,4-benzoquinonato, 5,8-dioxido-1,4-naphtoquinonato), twelve cationic arene ruthenium metalla-cycles of the general formula [(p-cymene)<sub>2</sub>Ru<sub>2</sub>(OO boolean AND OO)(N-L<sup>H</sup>)<sub>2</sub>]<sub>2</sub> (CF<sub>3</sub>SO<sub>3</sub>)<sub>4</sub>. The ureidopyrimidone moieties are able to form strong hydrogen-bonds by self-pairing, thus giving rise to dimeric structures in solution. In addition, to better understand the behavior of the tetranuclear metallacycles in solution, the neutral dinuclear arene ruthenium ureido-pyrimidone complexes of the general formula ((p-cymene)RuCl<sub>2</sub>(N-L<sup>H</sup>)} <sub>2</sub> were also prepared and characterized. All metalla-assemblies were studied in solution by NMR spectroscopy, confirming the high stability of the metalla- cycles and the usefulness of hydrogen-bonds in constructing supramolecular assemblies
Identifiants
Type de publication
journal article
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