Аннотация:Molecular mobility of acetonitrile intercalated into the inter-plane space of graphite oxide was studied using 1HNMR spectroscopy. The spectral shape for samples with different saturation level at different temperatures wasobserved and analyzed in detail. The existence of two fractions of intercalated acetonitrile with different molecularmobility was revealed. The effective activation energy for molecular mobility of acetonitrile in betweenthe oxidized graphene planes was determined.