Pressure-induced dimerization kinetics of fullerene C60

Autor:	A. V. Rakhmanina, L. S. Kashevarova, V. N. Agafonov, O. P. Pronina, Vladimir M. Senyavin, Henri Szwarc, N. N. Oleinikov, V. A. Davydov
Rok vydání:	2000
Předmět:	Reaction rate chemistry.chemical_compound Materials science Fullerene Physics and Astronomy (miscellaneous) chemistry Dimer Kinetics Infrared spectroscopy Physical chemistry Activation energy Cubic crystal system Atmospheric temperature range
Zdroj:	Journal of Experimental and Theoretical Physics Letters. 72:557-560
ISSN:	1090-6487 0021-3640
DOI:	10.1134/1.1348480
Popis:	Dimerization kinetics was studied for fullerene C60 by IR spectroscopy at a pressure of 1.5 GPa in the temperature range 373–473 K. The kinetic curves for the formation of a dimer (C60)2 were obtained using its analytical IR band at 796 cm−1. Under the assumption that pressure-induced C60 dimerization is a second-order irreversible reaction, the reaction rate constants were determined at different temperatures. The corresponding activation energy and preexponential factor were found to be 134±6 kJ/mol and (1.74± 0.24)×1014 s−1, respectively. The specific features of the solid-phase C60 dimerization in simple cubic and face-centered cubic fullerite phases are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a7a859107ae91748ab46c682d12c89d3 https://doi.org/10.1134/1.1348480 Zobrazit plný text záznamu Plný text ve formátu PDF