Abstract
RECENTLY, Long and Norrish1 have shown that when the energy associated with the tetravalent state of carbon is systematically taken into account it is possible to bring order into the thermochemistry of carbon. They support the value of 190 kcal. for the latent heat of sublimation of graphite into free atoms at the lowest energy-level of tetravalence (5S), and 125 k.cal. for the latent heat of sublimation into the divalent (3P) state. Thus, the energy obtained in the 5S → 3P conversion is 65 kcal.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to the full article PDF.
USD 39.95
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Long and Norrish, Proc. Roy. Soc., A, 187, 337 (1946).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BUSCH, R. Thermochemistry of Acetylene and Allylene and the Valency of Carbon. Nature 163, 179–180 (1949). https://doi.org/10.1038/163179b0
Issue date:
DOI: https://doi.org/10.1038/163179b0


