C¹³ ISOTOPE EFFECT IN THE DECARBOXYLATION OF NORMAL MALONIC ACID Journal Articles

abstract

• An investigation has been made of the relative rates of decarboxylation of two isotopic species of malonic acid, one containing only C12 carbon atoms and the other containing a C13 in a carboxyl position. Two effects were observed using malonic acid containing a normal abundance of C13—(1) a 3.3% faster rate of reaction for the molecule containing only C12 carbon atoms; (2) a 2% greater probability of rupture of a C12–C12 bond than a C12–C13 bond in the molecule containing a C13 carbon. The latter effect was found to be independent of temperature. The magnitude of the isotope effect is in reasonable agreement with theoretical predictions.

authors

• Lindsay, JG
• Bourns, Arthur Newcombe
• Thode, HG

status

• published 

publication date

• February 1, 1951

has subject area

• 03 Chemical Sciences (FoR)
• Carbon (MeSH)
• Carbon Radioisotopes (MeSH)
• Decarboxylation (MeSH)
• General Chemistry (Science Metrix)
• Isotopes (MeSH)
• Malonates (MeSH)
• Radioactivity (MeSH)

published in

• Canadian Journal of Chemistry  Journal

keywords

• CARBON AND COMPOUNDS, RADIOACTIVE
• Carbon
• Carbon Radioisotopes
• Decarboxylation
• Isotopes
• MALONIC ACID
• Malonates
• Radioactivity

Digital Object Identifier (DOI)

• 10.1139/v51-024

PubMed ID

• 14821851

start page

• 192

end page

• 200

volume

• 29

issue

• 2