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Your search keyword '"Hannon, Michael J."' showing total 14 results
Start Over Author "Hannon, Michael J." Journal dalton transactions
14 results on '"Hannon, Michael J."'

5. Conjugation of testosterone modifies the interaction of mono-functional cationic platinum(ii) complexes with DNA, causing significant alterations to the DNA helix

Author

Sanchez-Cano, Carlos, primary, Huxley, Martin, additional, Ducani, Cosimo, additional, Hamad, Amal E., additional, Browning, Michael J., additional, Navarro-Ranninger, Carmen, additional, Quiroga, Adoracion G., additional, Rodger, Alison, additional, and Hannon, Michael J., additional

Published
2010
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13. Aggregation of imine-based metallo-supramolecular architectures through π–π interactionsElectronic supplementary information (ESI) available: Fig. S1–S7: Overlays of the cations in 1and 2and 3and 4. Additional packing view of 1. Original colour versions of Fig. 1, 3, 5 and 7. See DOI: 10.1039/b517643c

Author

Pascu, Mirela, Clarkson, Guy J., Kariuki, Benson M., and Hannon, Michael J.

Abstract

The design of supramolecular architectures based on isoquinoline-imine ligand systems is described. The isoquinoline affords an extended π surface and the use of this surface to obtain self-recognition and consequent π–π aggregation is investigated. The approach is effective in that each of four complexes is observed to aggregate through these interactions. Other π–π interactions can interfere with the aggregation indicating that a larger π-surface may be required to obtain complete control over the aggregation of the units.

Published
2006
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14. Binding sites on the outside of metallo-supramolecular architectures; engineering coordination polymers from discrete architectures

Author

Pascu, Mirela, Tuna, Floriana, Kolodziejczyk, Edyta, Pascu, Gabriel I., Clarkson, Guy, and Hannon, Michael J.

Abstract

Aggregation of metallo-supramolecular architectures through additional coordination is explored by introducing metal-binding units onto the outside of the supramolecular architectures. This is achieved within the framework of our imine-based approach to supramolecular architecture, by replacing the pyridylimine units with pyrazylketimine units. An advantage of the design is that it retains the ease-of-synthesis which characterises our imine-based approach. Silver(i) complexes of three pyrazylketimine ligand systems are described. The complexes demonstrate that introducing pyrazine donor units does indeed allow higher-order assembly of the distinct supramolecular architectures into engineered coordination polymers. Two distinct types of aggregation are observed. In the first, the donors on the outside of one architecture bind to the metals of another to link the units into a polymeric array. In the second type, the donors on the outside of the architectures bind to separate metal centres which are themselves not part of the architectures, and these separate metal centres link the units to form the macromolecular array. The weaker donor nature of the pyrazine nitrogens (compared to pyridine) also introduces an additional element into the design; higher coordination numbers are favoured and this can lead to arrays with higher connectivity than those observed in the discrete pyridylimine architectures.

Published
2004

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