Description succincte
(Anglais)
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This project is concerned with luminescence and photophysical properties of non-covalently bonded assemblies of molecular components. Different non-covalent interactions such as metal-ligand coordinate bonding, hydrogen-bonding and aromatic pi-stacking will be used as the means of connecting molecular components in arrays of different sizes. Vectorial processes such as photoinduced energy- or electron-transfer within these assemblies through the non-covalent bridges will then be studied. There will be a strong emphasis on the chirality of the building blocks and how the chirality of the molecular components affects their assembly into aggregates, and the luminescence properties of these assemblies. The ultimate aim is to produce sophisticated assemblies of mixtures of components which, when combined, have useful photophysical properties ranging from anion sensing to long-range electron transfer.
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Partenaires et organisations internationales
(Anglais)
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AT, BE, CH, CZ, DE, DK, ES, FI, FR, GR, HR, HU, IL, IT, LT, NL, NO, PL, PT, SE, SI, UK
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Résumé des résultats (Abstract)
(Anglais)
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The aim of the COST D31-006-04 working group was to prepare molecular and supramolecular assemblies which will display useful properties in the fields of molecular recognition and luminescence. These assemblies were based on either discrete molecular systems or on coordination polymers associated by metal-ligand bonds, hydrogen bonds or pi-stacking interactions. In many instances, the molecular and supramolecular assemblies of study were chiral and these compounds were prepared before in only racemic form. As the targeted applications - non-linear optics, chiral anion sensing, selective DNA binding, etc. -depended upon the isolation of these compounds in enantiomerically enriched or pure form, the proposal dealt with the resolution, the stereocontrol or the asymmetric synthesis of the cationic molecular and supramolecular assemblies through selective supramolecular interionic interactions; the anions of choice being enantiopure hexacoordinated phosphorus anions of TRISPHAT or BINPHAT type. Several publications appeared in print as a result of the collaboration.
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