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Non-radiative fast processes and quantum efficiency of transition metal ions in soloids

✍ Scribed by M. Grinberg; A. Mandelis

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
331 KB
Volume
58
Category
Article
ISSN
0022-2313

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## Abstract In the presence of an excess of cysteine, a catalytic amount of a non‐iron transition‐metal ion (Co^2+^, Cu^2+^, Ni^2+^, Ti^4+^, and Mn^2+^) may also induce cleavage of qinghaosu (artemisinin; **1**) to give those end products previously reported for Fe^2+^‐mediated degradation.