The self-assembly of a new class of coordination cages formed from two tetra pyridyl-substituted cavitands connected through four square-planar palladium or platinum complexes is reported. The shape of the internal cavity resembles an ellipsoid with a calculated volume of 840 Angstrom(3). The four lateral portals have a diameter of about 6 Angstrom, large enough to allow the fast entrance/ egress of counterions in solution. The platinum cages 3a,e cannot be disassembled using triethylamine as competitive ligand and they are kinetically stable at room temperature, whereas the palladium cages 3b-d, 3f-h are disassembled and kinetically labile under the same conditions. The different solubility properties of the cage components have allowed the extension of this selfassembly protocol to the liquid-liquid interface.

Design and Self-Assembly of wide and robust coordination cages / Pirondini, Laura; F., Bertolini; Cantadori, Barbara; Ugozzoli, Franco; Massera, Chiara; Dalcanale, Enrico. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 1091-6490. - 99:8(2002), pp. 4911-4915. [10.1073/pnas.07261299]

Design and Self-Assembly of wide and robust coordination cages

PIRONDINI, Laura;CANTADORI, Barbara;UGOZZOLI, Franco;MASSERA, Chiara;DALCANALE, Enrico
2002-01-01

Abstract

The self-assembly of a new class of coordination cages formed from two tetra pyridyl-substituted cavitands connected through four square-planar palladium or platinum complexes is reported. The shape of the internal cavity resembles an ellipsoid with a calculated volume of 840 Angstrom(3). The four lateral portals have a diameter of about 6 Angstrom, large enough to allow the fast entrance/ egress of counterions in solution. The platinum cages 3a,e cannot be disassembled using triethylamine as competitive ligand and they are kinetically stable at room temperature, whereas the palladium cages 3b-d, 3f-h are disassembled and kinetically labile under the same conditions. The different solubility properties of the cage components have allowed the extension of this selfassembly protocol to the liquid-liquid interface.
Design and Self-Assembly of wide and robust coordination cages / Pirondini, Laura; F., Bertolini; Cantadori, Barbara; Ugozzoli, Franco; Massera, Chiara; Dalcanale, Enrico. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 1091-6490. - 99:8(2002), pp. 4911-4915. [10.1073/pnas.07261299]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1452433
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