Cel The purpose of the projected study is to compare the physico-chemical and mechanical properties of the materials formed under the influence of high pressure from pure fullerenes, their endo- and exo-derivatives and mixtures of fullerenes with metal powder, mainly in the conditions within which the fullerene skeleton collapses. These conditions lie in the 800 K range at pressure higher than 3 Gpa.First, the fluorofullerene compounds will be prepared and purified in Moscow. These compounds will undergo pressure treatments in Troitsk, in the same conditions than their metal-fullerene counterparts did. A preliminary study will then be performed to determine the hardness of the formed samples in order to guide the ensuing treatments.The structural properties will then be studied in Tours and Paris by means of X-ray measurements and electron microscopy. Raman spectroscopy will also be used to determine the bonding between carbon and fluorine atoms and between carbon and metal atoms.Transport properties of the metal containing samples (thermal and electrical conductivities as a function of temperature down to 15mK) will simultaneously be measured in Louvain. Conductivity measurements up to 1000 K will also be performed in Paris. As the metal-carbon bonding in endohedral compounds and mixtures, respectively, are different, differences in these properties are expected to be very important.Thermodynamic, electron spin resonance and near field microscopy measurements of all samples will be performed in Orsay.To sum up, it is expected that endohedral compounds will lead to harder materials than mixtures will do and moreover, as it is stressed above, the transport properties should be very different.These studies should lead to publications in international journals and patentable findings may be encountered. Program(-y) IC-INTAS - International Association for the promotion of cooperation with scientists from the independent states of the former Soviet Union (INTAS), 1993- Temat(-y) 3 - Chemistry RUSSIA - RUSSIA Zaproszenie do składania wniosków Data not available System finansowania Data not available Koordynator Universite Paris V Wkład UE Brak danych Adres 4, avenue de l'Observatoire 75006 Paris Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (5) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko M.V. Lomonosov Moscow State University Rosja Wkład UE Brak danych Adres Leninskie Gori 119899 Moscow Zobacz na mapie Koszt całkowity Brak danych Russian Academy of Sciences Rosja Wkład UE Brak danych Adres 142092 Troitsk, Moscow region Zobacz na mapie Koszt całkowity Brak danych Universite Catholique de Louvain Belgia Wkład UE Brak danych Adres 1, Place Croix du Sud 1348 Louvain-la-Neuve Zobacz na mapie Koszt całkowity Brak danych Universite Francois Rabelais Francja Wkład UE Brak danych Adres 31, rue Monge 37200 Tours Zobacz na mapie Koszt całkowity Brak danych Universite Paris Sud Francja Wkład UE Brak danych Adres 91405 Orsay Zobacz na mapie Koszt całkowity Brak danych
