Yu. S. Grushko

On the mechanical properties of C60 fullerite crystals

First experimental data on the plasticity, strength and microhardness of C60 fullerite crystals are reported. It is concluded that the mechanical properties of the crystals studied are isotropic, and the values of their breaking point are low. The obtained results are compared with those for other materials (graphite, indium etc.).

129I-Mössbauer study of iodine-doped C60

Abstract 129 I-Mossbauer spectroscopy is applied to study the chemical nature of iodine species in C 60 I 3.64 . Spectra in temperature region 4.2 K – 100 K reveal the presence of two inequivalent sites of iodine with hyperfine parameters related to that of molecular iodine. The two iodine species are attributed to two molecules located at sites with different local symmetry and binding strength as reflected by different quadrupole-interaction tensors and local Debye temperatures. Discussion of the results in the Townes-Dailey formalism show that there is only a small total charge transfer between iodine and C 60 , but a considerable charge redistribution between the two iodine sites.

Absorption line spectrum of the C60Cl24 halofullerene

AbstractOptical spectra of the C60Cl24 halofullerene in the crystalline state, as well as of C60Cl24 matrixisolated molecules, were studied. In both cases, a rich line structure was revealed in absorption spectra in the energy region 1.5–3.0 eV. An energy diagram of the electronic levels of the molecule which are responsible for the observed optical transitions is proposed. The parameters of the geometrical structure of the C60Cl24 molecule were calculated under the assumption of its having Th symmetry. These data were used in a theoretical study of the embedment of the C60Cl24 molecule in a toluene crystal matrix, which leads to the formation of a fine spectral structure (an analog of the Shpol’ski

Small-angle neutron scattering study of high-pressure sintered detonation nanodiamonds

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Technology for manufacture of pure fullerenes C60, C70 and a concentrate of higher fullerenes

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Investigation of the neutron activation of endohedral rare earth metallofullerenes

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Investigation of the hydrogen capacity of composites based on ZnOCu

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Some capabilities of neutron methods for investigating materials and components of devices used in hydrogen power engineering

The method is presented for concentrating the fraction of “superhigher” (M@C 2n , 2n ≤ 160) metallofullerenes. The method is based on scarce solubility of superhigher fullerenes in the usual (free of nitrogen) solvents.