Chemistry Reference
In-Depth Information
Eq. (Q
y
)Br
[a]
Entry No
compound formula
Yield [%]
color
(Q
5
)
6
[
D
-SiW
11
O
39
Cu(H
2
O)]
1
5.9
54
spring green
(Q
5
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
2
4.9
67
goldenrod
(Q
6
)
6
[
D
SiW
11
O
39
Cu(H
2
O)]
spring green
3
5.9
64
(Q
6
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
goldenrod
4
4.9
65
(Q
7
)
6
[
D
-SiW
11
O
39
Cu(H
2
O)]
spring green
5
5.9
75
6
(Q
7
)
6
[
D
-SiW
11
O
39
Co(H
2
O)]
5.9
64
dark red
(Q
7
)
6
[
D
-SiW
11
O
39
Ni(H
2
O)]
yellow
7
5.9
65
(Q
7
)
6
[
D
-SiW
11
O
39
Mn(H
2
O)]
purple
8
5.9
67
9
(Q
7
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
4.9
70
brown
(Q
7
)
5
[
D
-SiW
11
O
39
Cr(H
2
O)]
dark green
10
4.9
71
(Q
8
)
6
[
D
-SiW
11
O
39
Cu(H
2
O)]
lime green
11
5.9
65
(Q
8
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
12
4.9
76
goldenrod
[a]
A marginally sub-stoichiometric amount of the respective alkylammonium bromide was employed in the
syntheses as this leads to improved purity of the final product (based on elemental analysis).
Table 11
Summary of synthesized compounds with the respective yield and equivalents of
tetraalkylammonium bromide added.
EA
in wt. - %
(calculated values in brackets):
Entry No
compound formula
C
H
N
(Q
5
)
6
[
D
-SiW
11
O
39
Cu(H
2
O)]
1
31.36 (31.82)
5.96 (5.88)
1.72 (1.86)
(Q
5
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
31.36 (28.44)
5.85 (5.25)
1.65 (1.66)
2
3
(Q
6
)
6
[
D
SiW
11
O
39
Cu(H
2
O)]
35.66 (35.41)
6.49 (6.48)
1.65 (1.72)
(Q
6
)
5
[
D
-SiW
11
O
39
Fe(H
2
O)]
31.58 (32.00)
5.79 (5.82)
1.42 (1.56)
4
(Q
7
)
6
[
D
-SiW
11
O
39
Cu(H
2
O)]
39.61 (38.78)
7.16 (6.97)
1.69 (1.62)
5
(Q
7
)
6
[
D
-SiW
11
O
39
Co(H
2
O)]
6
38.86 (38.82)
6.98 (6.98)
1.68 (1.62)
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