4.2 Aqueous Solutions
91
Table 4.3
(continued)
TcOCl(LB
1
)2
TcOCl(LB
2
)2
TcOCl(LB
3
)2
TcO(LT)(LB
1
)
TcO(LT)(LB
2
)
TcO(LT)(LB
3
)
TcOCl2(L')
μ-O[TcO(LQ)]2
V/IV
0.91
(at -35
0
C)
0.87
0.54
0.92
0.88
0.73
0.69
1.03
0.1 or 0.5 M TEAP in ACN or
DMF
E vs. Fc,Fc
+
(Refosco 1988, Tisato
1989, 1990)
[TcL
3’
]
+
IV/III
0.53
0.2 M TBAPF6 in DCM
E vs. Ag/Ag
+
; irrev.
(Hunter 1989)
[Tc(L
1
)3]
[Tc(L
2
)3]
[Tc(L
3
)3]
IV/III;
III/II;
II/I
0.600;
0.997;
0.638;
0.925; 1.778
0.756;
0.731; 1.881
0.2 M TEAP in DCM
0.1 M TBAP in ACN
0.1 M TBAP in ACN
E vs. Fc,Fc
+
;
not rev.
(Refosco 1993)
[Tc(S2CPh)(S3CPh)2]
IV/III
III/II
0.894;
0.556
0.1 M TBAP in DCM
E vs. Ag/Ag
+
quasirev.; irrev. ox. at
1.362 V
(Mévellec 2002)
[Tc
V
(N)(FcCS2)2]
[Tc
V
(N)(FcCS2)(FcCS2
i
)]
0.320
Fe(III)/Fe(II);
0.344
Fe(III)/Fe(II);
0.1 M TBAP in DCM
E vs. Fc,Fc
+
; E
0’
for free ligand
FcCS2 equals 0.337 V; irrev.
cathodic wave below 1.65
V;
(Bolzati 1997)
Tc(DBCat)3
VI/VI;
VI/V;
V/IV
0.45
;
0.42;
1.09
TBAPF6
in DCM
E vs. Fc,Fc
+
(deLearie 1989)
Complex
Oxidation states
and E1/2
(or E
0’
) / V
Medium
Remarks
Reference
(continued)