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T. S. Papina, V. A. Lukyanova, S. I. Troyanov, A. V. Burtsev, M. G. Serov, V. A. Ioutsi, A. G. Buyanovskaya, O. A. Levinskaya
The standard enthalpy of formation of
fullerene bromide C60Br24
Abstract
The enthalpy of combustion of crystal
solvate C60Br24×2Br2 was
measured in a rotating-bomb calorimeter: DcH0(C60Br24×2Br2, cr)= (–25986±166)
kJ/mol. The result was used to calculate the standard enthalpy of formation, DfH0 (C60Br24×2Br2, cr) = (2375±166)
kJ/mol.The enthalpy of formation of C60Br24 (cr)and dissociation enthalpy of C–Br bond were estimated. The last
value was compared with the C–X (X=H, F, Cl, Br) bond enthalpies in
derivatives offullerene C60 and in organic compounds.
Key words: enthalpy of combustion,
enthalpy of formation, fullerene bromide.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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