TY  - JOUR
A1  - Vierke, Gerhard
A1  - Müller, Manfred
T1  - Evidence against OH Radical Formation during Photocatalyzed Reduction of Manganese(III) in K2 [Mn(III)-2-α-hydroxyethyl-isochlorin e4]acetate in Oxygen Free Aqueous Alkaline Solutions
T2  - Zeitschrift für Naturforschung, B
N2  - The hypothesis of GLIKMAN and ZABRODA (Biochemistry [USSR] 84,, 239 [1969]) that the primary electron donor during photoreduction of manganese(III) in Mn(III)-hydroxychlorin compounds in oxygen free aqueous alkaline solutions is the axially bound OH- ion was tested with Mn(III)-2-a-hydroxyethyl-isochlorin e4. It has been shown that
1) the primary generation of OH radicals upon irradiation of the complex is highly improbable,
2) light is not essential for the reduction reaction,
3) the kinetics of photoreduction of the Mn(III)-compound in 2 N NaOH clearly is not compatible with OH radical formation.
KW  - OH  Radical
KW  - Mn(III)-Chlorin
KW  - Kinetics
KW  - Photoreduction
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/76169
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-761690
SN  - 1865-7117
SN  - 0932-0776
VL  - 31.1976
IS  - 6
SP  - 816
EP  - 819
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -