Chemistry Reference
In-Depth Information
O
O
N
O
O
Figure 15.5 Molecular structure of 1-pyrenebutanoic acid succimidyl ester
H
2
N
Toluene
60°C, 24
h
N
+
C
2
H
5
O
Si
OC
2
H
5
C
2
H
5
O
OC
2
H
5
Si
OC
2
H
5
OC
2
H
5
O
1-pyrenecarboxaldehyde
3-aminopropyltriethoxysailne
N-(3-triethoxysilylpropane)-1-pyrenemethaneimine
Figure 15.6 Preparation and molecular structure of N-(3-triethoxysilylpropane)-1-pyrene-
methaneimine
2.74 nm
(E)
2.34 nm
(D)
1.96 nm
(C)
1.53 nm
(B)
(B)
1.18 nm
(A)
2
4
6
8
10
2
θ
/
deg. CuK
α
Figure 15.7 X-ray diffraction patterns of thin film of silylated graphite oxide containing
perfluoroalkyl groups (A): before and after reacted with N-(3-triethoxysilylpropane)-1-pyrene-
methaneimine of (B): 0.1, (C): 1.0, (D): 10 and (E): 100mmol/L at 85
C for 1h. (unpublished
data)
[(C
6
F
13
C
2
H
4
Si(OH)
2
]
2.3
Si
14
O
29
without amino groups were easily removed by washing
with acetone. An example of the procedure shown below is the reaction of silylated
graphite oxide containing perfluoroalkyl groups with pyrene containing triethoxysilane
(N-(3-triethoxysilylpropane)-1-pyrenemethaneimine) prepared as shown in Figure 15.6
[69]. This reaction is basically the same as that of the first step of the procedure shown in
Figure 15.4 and the silylation of silanol groups by triethoxysilyl groups. Though the
molecular size of this dye is much larger than that of 3-aminopropyltriethoxysilane, the
(001) X-ray diffraction peak further shifted to lower angles as the increase of the
concentration of dye as shown in Fig. 15.7. The interlayer spacing increased from 1.18
