38
2 MET-Type Bioelectrocatalysis
Table 2.2
Formal potentials of organic compounds in aqueous solution
Compound
E°
/V versus SHE
pH
Conditions
References
[5,10,15,20-tetrakis(2,6-dichloro-3-sulfonato)porphyrinato]
Fe(H
2 O)(OH −
)
1.581
5
I
= 0.5
[82]
ABTS (2,2
-azinobis-(3-ethylbenzthiozoline-6-suifonic
acid)(0/1 −
)
1.097
7
0.05 M phosphate, I
= 0.1
[92]
Promazine (n
= 1)[ammonium form]
0.53
(standard potential)
*
[93]
chloramine-T
0.9
7
[94, 91]
TMPDA (N,N,N’,N’-tetramethylphenylendiamine)(2 +
/1 +
)
0.749
7
0.1 M phosphate, I
= 0.1; Reversible on CV at 1 V s −1
[95]
porphyrexide
0.718
7
0.1 M phosphate, 0.1 M NaCl
[96]
0.725
7
[91, 97]
ABTS(1 −
/2 −
)
0.63
5.3
8 mM MES
[86]
0.702
7
0.05 M phosphate, I
= 0.1
[92]
syringaldazine
0.7
5.3
8 mM MES
[86]
o-tolidine
0.55
7
[91, 97]
bacteriochlorophyll a
0.52
methanol
[91, 98]
dopamine
0.386
7
0.1 M phosphate (I
= 0.1)
[95]
2,5-dihydroxy-1,4-benzoquinone
0.38
7
[91, 97]
p-aminodimethylaniline
0.38
7
[91, 97]
o-quinone/1,2-hydroxybenzene(catechol)
0.35
7
[91, 97]
p-aminophenol
0.314
7
[91, 97]
tetrahydroxy-p-benzoquinone
0.312
7
0.1 M phosphate (I
= 0.1)
[95]
2,5-dichloro-p-benzoquinone
0.302
7
0.1 M phosphate (I
= 0.1)
[95]
(continued)