Chemistry Reference
In-Depth Information
Figure 55
UV-Vis spectrum of (Q
7
)
6
[
D
-SiW
11
O
39
Ni(H
2
O)] in toluene. Left: c = 6.4 10
-5
M), the extinction
coefficient is
H
285
= 15704 M
-1
cm
-1
.
Right: c = 10.4 mM, the extinction coefficients are
H
432
= 26.1 M
-1
cm
-1
and
H
806
= 7.5 M
-1
cm
-1
.
Figure 56
UV-Vis spectrum of (Q
7
)
5
[
D
-SiW
11
O
39
Cr(H
2
O)] in toluene. Left: c = 3.7 10
-5
M, the extinction
coefficient is
H
284
= 26012 M
-1
cm
-1
. Right: c = 20.4 mM, the extinction coefficient is
H
646
= 31.3 M
-1
cm
-1
.
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