Objetivo This project is aimed at synthesizing and characterizing molecular magnetic materials based on nitroxide free radicals and/or their co-ordination compounds with transition metal ions. Since nitroxides have large spin densities distributed on peripheral atoms, intermolecular magnetic interactions may develop in the solid state leading to organic magnetic materials, or strongly coupled species may be obtained when these sites are co-ordinated to metal ions. Recently, ordering temperatures of ca. 20 K have been obtained for quasi-undimensional compounds in which interchain interactions are weak. Increasing the critical temperature is a prerequisite for possible applications in electronic, magnetic, photonic or photronic devices. Therefore, the future work in this field must be addressed to the synthesis of three-dimensional arrays of exchange coupled spin carriers. Strategy towards polydimensional materials involves functionalized nitroxides able to be bound to more than two metal ions. In this respect, both enaminoketone derivatives of 3-imidazoline nitroxides and imidazolyl substituted nitronyl and imino nitroxides will be particularly investigated.All the participating laboratories have complementary expertise. Among the NIS groups, the Institute of Organic Chemistry will develop the chemistry of 3-imidazoline nitroxides. The Institute of Inorganic Chemistry will investigate rare earth co-ordination chemistry of these ligands. The Laboratory of Polyspin Compounds will ensure co-ordination of the work in Novosibirsk. Nitronyl and imino nitroxide chemistry will be developed in Barcelona and Grenoble. Most of the physical measurements will be performed in Grenoble where outstanding facilities including neutron diffraction are available. Programa(s) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Tema(s) 32 - Analytical and Physical Chemistry Convocatoria de propuestas Data not available Régimen de financiación Data not available Coordinador CEA - Commissariat à l'Energie Atomique Aportación de la UE Sin datos Dirección Rue des Martyrs 17 38054 Grenoble Francia Ver en el mapa Coste total Sin datos Participantes (4) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo Consejo Superior de Investigaciones Cientificas España Aportación de la UE Sin datos Dirección 08193 Bellaterra Barcelona Ver en el mapa Coste total Sin datos International Tomography Centre Rusia Aportación de la UE Sin datos Dirección 630090 Novosibirsk Ver en el mapa Coste total Sin datos Novosibirsk Institute of Inorganic Chemistry Rusia Aportación de la UE Sin datos Dirección 630090 Novosibirsk Ver en el mapa Coste total Sin datos Novosibirsk Institute of Organic Chemistry Rusia Aportación de la UE Sin datos Dirección 630090 Novosibirsk Ver en el mapa Coste total Sin datos