Chemistry Reference
In-Depth Information
anthracene
tetracene
pentacene
hexacene
heptacene
nonacene
1.2
a)
0.8
A
0.4
A
0.0
400
500
600
700
800
900
1000
1100
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
3.3
3.5
l
/nm
E
/eV
Fig. 34
Left
: UV/vis-NIR spectrum of nonacene 70c measured in toluene at RT.
Right
: the long-
wavelength portion of the absorption spectra for silylethyne-substituted acenes from anthracene to
heptacene and nonacene 70c. Reprinted with permission from [
61
]. Copyright 2011 John Wiley
and Sons
R
R
O
R
Br
Br
Br
Br
KI
+
2
R
R
O
R
72
73
R
R
R
O
O
R
R
R
R
R
O
R
O
R
74
R= S
Li
1.
R
R
R
2. SnCl
2
R
R
R
R
R
R
R
75
R
R
R
1. NaBH
4
2. SnCl
2
R
R
R
R
R
R
R
76
Fig. 35 Synthesis of thioaryl substituted nonacenes 75 and 76 [
62
]
