Abstract
In the Belousov Zhabotinsky reaction, malonyl radicals formed during the oxidation of malonic acid by Ce4+ play an important role in the mechanism of the negative feedback loop. In the past, we have analyzed the end products in the Ce4+-malonic acid reaction applying HPLC technique. For comparison, we generated malonyl radicals by UV irradiation of solutions of malonic acid and we identified the reaction products. Two of these are the same as in the Ce4+-malonic acid reaction, but some additional products are also formed. To explain our experimental results, a new reaction path is proposed where malonyl radicals and hydrogen atoms are the first intermediates in the photochemical decomposition of the malonic acid. Mechanistic differences between this photochemical decomposition and the Ce4+-malonic acid reaction are also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 3118-3120 |
| Number of pages | 3 |
| Journal | Journal of Physical Chemistry A |
| Volume | 102 |
| Issue number | 18 |
| Publication status | Published - Apr 30 1998 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
HPLC studies on the photochemical formation of free radicals from malonic acid. / Szalai, Istvan; Försterling, Horst Dieter; Noszticzius, Z.
In: Journal of Physical Chemistry A, Vol. 102, No. 18, 30.04.1998, p. 3118-3120.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - HPLC studies on the photochemical formation of free radicals from malonic acid
AU - Szalai, Istvan
AU - Försterling, Horst Dieter
AU - Noszticzius, Z.
PY - 1998/4/30
Y1 - 1998/4/30
N2 - In the Belousov Zhabotinsky reaction, malonyl radicals formed during the oxidation of malonic acid by Ce4+ play an important role in the mechanism of the negative feedback loop. In the past, we have analyzed the end products in the Ce4+-malonic acid reaction applying HPLC technique. For comparison, we generated malonyl radicals by UV irradiation of solutions of malonic acid and we identified the reaction products. Two of these are the same as in the Ce4+-malonic acid reaction, but some additional products are also formed. To explain our experimental results, a new reaction path is proposed where malonyl radicals and hydrogen atoms are the first intermediates in the photochemical decomposition of the malonic acid. Mechanistic differences between this photochemical decomposition and the Ce4+-malonic acid reaction are also discussed.
AB - In the Belousov Zhabotinsky reaction, malonyl radicals formed during the oxidation of malonic acid by Ce4+ play an important role in the mechanism of the negative feedback loop. In the past, we have analyzed the end products in the Ce4+-malonic acid reaction applying HPLC technique. For comparison, we generated malonyl radicals by UV irradiation of solutions of malonic acid and we identified the reaction products. Two of these are the same as in the Ce4+-malonic acid reaction, but some additional products are also formed. To explain our experimental results, a new reaction path is proposed where malonyl radicals and hydrogen atoms are the first intermediates in the photochemical decomposition of the malonic acid. Mechanistic differences between this photochemical decomposition and the Ce4+-malonic acid reaction are also discussed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000472283&partnerID=8YFLogxK
M3 - Article
VL - 102
SP - 3118
EP - 3120
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
SN - 1089-5639
IS - 18
ER -