TY - JOUR
T1 - Redox characteristics of manganese and cobalt complexes obtained from pyridine N-oxide
AU - Hotchandani, S.
AU - Ozdemir, U.
AU - Allakhverdiev, S. I.
AU - Karacan, N.
AU - Klimov, V. V.
AU - Kamat, P. V.
AU - Carpentier, R.
N1 - Funding Information:
We would like to thank Natural Sciences and Engineering Research Council of Canada NSERC (S.H. and R.C.) for financial support. S.I.A. was the recipient of NSERC International Scientific Exchange Award. P.V.K. is supported by the Office of the Basic Energy Sciences of the US Department of Energy. This is contribution No. NDRL 4217 from Notre Dame Radiation Laboratory.
PY - 2000/6
Y1 - 2000/6
N2 - Manganese and cobalt complexes, using pyridine N-oxide as ligand, have been synthesized, and their cyclic and square-wave voltammetric measurements have been carried out. The results reveal that the complexes exhibit different voltammetric pattern, which suggests that the redox processes are most probably metal-centered. In both complexes, extra redox activity is observed once the potential exceeds certain value of the voltage. The observation of an oxidation wave in manganese complex at +0.75 V vs. Ag/AgCl or +0.95 V vs. NHE strongly suggests that this complex can bring about oxidation of water and can, thus, serve as a synthetic analogue of water oxidizing complex (WOC) of PS II. Copyright (C) 2000 Elsevier Science S.A.
AB - Manganese and cobalt complexes, using pyridine N-oxide as ligand, have been synthesized, and their cyclic and square-wave voltammetric measurements have been carried out. The results reveal that the complexes exhibit different voltammetric pattern, which suggests that the redox processes are most probably metal-centered. In both complexes, extra redox activity is observed once the potential exceeds certain value of the voltage. The observation of an oxidation wave in manganese complex at +0.75 V vs. Ag/AgCl or +0.95 V vs. NHE strongly suggests that this complex can bring about oxidation of water and can, thus, serve as a synthetic analogue of water oxidizing complex (WOC) of PS II. Copyright (C) 2000 Elsevier Science S.A.
KW - Cobalt complex
KW - Cyclic voltammetry
KW - Manganese complex
KW - Photosystem II (PS II)
KW - Redox characteristics
KW - Water oxidizing complex (WOC)
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U2 - 10.1016/S0302-4598(00)00068-4
DO - 10.1016/S0302-4598(00)00068-4
M3 - Article
C2 - 10910166
AN - SCOPUS:2942515606
VL - 51
SP - 175
EP - 180
JO - Bioelectrochemistry
JF - Bioelectrochemistry
SN - 1567-5394
IS - 2
ER -