88
4 Technetium Coordinated by Organic Ligands …
Table 4.3
(continued)
TcCl3(PPh3)(tmeda)
TcCl3(PPh3)(py)3
TcCl3(terpy)(DMAc)
[TcCl2(Me2Bpy)2]OTf
[TcCl2(PPh3(py)3)]OTf
[TcCl2(py)4]OTf
TcCl2(py)4
[TcCl2(py)5]BPh4
[TcCl2(terpy)(py)2)]OTf
0.71;
0.79
0.79;
0.79;
1.72
0.67;
0.34;
1.42
0.60;
0.43
1.13;
0.16;
1.11
0.86;
0.53
1.34;
0.38;
1.33
0.09;
0.84
0.70;
0.43
0.41;
0.82
TBAH in DMAc or DCM
E vs. NHE;
potential of irrev. cathodic peak,
potential of irrev. cathodic peak
with multielectron process
(Barrera 1996)
[Tc(PPh3)(L
1b
)(morphbtu)]
V/IV;
IV/III;
1.078;
0.218
0.2 M TBAPF6 in DCM
E vs. Fc,Fc
+
; no reduction process
from -1.2 V to 0.0 V
(Huy 2009)
Tc[TpCF3PC](O)
Tc[TpC](O)
Tc[TpCH3PC](O)
Tc[TpOCH3PC](O)
1.28;
0.79
1.18;
0.91
1.16;
0.90
1.15;
0.89
0.1 M TBAPF6
in ACN
E vs. Ag,AgCl; all given redox
potentials show the activity of the
macrocycles
(Einrem 2016)
trans[Tc(tmpp)2(tmf2en)]
+
[Tc(PEt3)2(tmf2en)]
+
IV/III
III/II
0.817
;
0.556
0.826
;
0.567
0.1 M TEAP in PC
E vs. Ag,AgCl;
(Baumeister 2018)
TcCl3(PPh3)(CH3CN)
IV/III
III/II
II/I
1.00;
0.49;
2.00
;
Complex
Oxidation states
and E1/2
(or E
0’
) / V
Medium
Remarks
Reference
irrev.
TcCl3(t-butyl
3 tpy3)
(continued)