92
4 Technetium Coordinated by Organic Ligands …
Table 4.3
(continued)
Tc(DBCat)3-(DBAP)
0.27

;
0.59; 1.53

rev. redox system characteristic for
ligands
trans[TcD2X2]
+
III/II
D:
dmpe; dmpe;
depe
X:
Cl;
Br;
Cl
0.323; 0.217; 0.224
0.396; 0.300; 0.404
0.268; 0.152; 0.248
0.308; 0.188; 0.216
0.5 M KNO3
0.1 M SDS/0.1 M TEAP
32 mM CTAB/0.1 M NaCl
1.2% TritonX-100/0.1 M NaCl
E vs. Ag,AgCl (3M KCl);
for KNO3 irrev. waves;
for [Tc(depe)2Cl2]
+/0
irrev. waves
(Kirchoff 1988)
[TcO2(amine)2]
+
V/IV
amine: en
tn
0.54

0.61

0.82

0.73

0.82

0.73

pH = 2.5
pH = 2.5
pH = 8.5
E vs. SHE; ionic strength 0.5 M
(adjusted with KCl); irrev. waves

potential of anodic peak;

potential of catodic peak
(Kremer 1996)
Complex
Oxidation states
and E1/2
(or E
0’
) / V
Medium
Remarks
Reference
(continued)