TY - JOUR
T1 - Enthalpy of formation of C70
AU - Diogo, Hermínio P.
AU - Minas Da Piedade, Manuel E.
AU - Darwish, Adam D.
AU - Dennis, T. John S.
N1 - Funding Information:
Acknowledgements--This work was supported by Junta Nacional de Investigaq~o Cientifica e Tecnol6gica (Project PBICICICENI1042192), Direcqfio Geral do Ambiente, (Project PEAM/P/TAI/285/93) and the British Council/JNICT protocol (Project BC/JNICT/CT/LIS/882/12/96-97), Portugal. We also thank Professor J. A. Martinho Sim6es for helpful comments.
PY - 1997/11
Y1 - 1997/11
N2 - The standard molar enthalpy of formation of C70 in the crystalline state at 298.15 K has been determined as 2577.8 ± 16.2 kJ mol-1 by microcombustion calorimetry. ΔfH0m(C70,g) at 298.15 K was also derived, using literature data for the enthalpy of sublimation, vapour pressure, solid state heat capacity and solid state entropy, in conjunction with ideal-gas phase heat capacity and entropy values calculated by Statistical Mechanics. The obtained standard molar enthalpy of formation of gaseous C70 is compared to the corresponding predictions of several theoretical methods and used to discuss the bonding energetics in the molecule.
AB - The standard molar enthalpy of formation of C70 in the crystalline state at 298.15 K has been determined as 2577.8 ± 16.2 kJ mol-1 by microcombustion calorimetry. ΔfH0m(C70,g) at 298.15 K was also derived, using literature data for the enthalpy of sublimation, vapour pressure, solid state heat capacity and solid state entropy, in conjunction with ideal-gas phase heat capacity and entropy values calculated by Statistical Mechanics. The obtained standard molar enthalpy of formation of gaseous C70 is compared to the corresponding predictions of several theoretical methods and used to discuss the bonding energetics in the molecule.
KW - A. Fullerenes
KW - D. Thermodynamic properties
UR - http://www.scopus.com/inward/record.url?scp=0031276793&partnerID=8YFLogxK
U2 - 10.1016/S0022-3697(97)00074-7
DO - 10.1016/S0022-3697(97)00074-7
M3 - Article
AN - SCOPUS:0031276793
SN - 0022-3697
VL - 58
SP - 1965
EP - 1971
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
IS - 11
ER -