CRC Handbook of Chemistry and Physics, 57th Edition

An entry of 0.0 for Δ f H ° for an element indicates the reference state of that element. See References 1 and 2 for further information on reference states. A blank means no value is available. The data are derived from the sources listed in the references, from other papers appearing in the Journal of Physical and Chemical Reference Data , and from the primary research literature. We are indebted to M. V. Korobov for providing data on fullerene compounds. References