(b)
(d)
(f)
c
c
c
a
a
b
β
β
α
(a)
(c)
(e)
b
a
a
b
a
b
γ
(h)
b
c
α
(k)
b
c
α
(g)
a
b
γ
(j)
a
b
γ
Fig. 4.1 Crystal structures of the single crystals of (a), (b): naphthalene, (c), (d): anthracene,
(e), (f): tetracene, (g), (h): pentacene, and (j), (k): hexacene [42]. The unit cell consists of the
two nonequivalent molecules placed at the corner and center of the cell, which are arranged in a
herringbone fashion. For tetracene, the Niggli cell parameters are displayed, for ease of comparison
between the crystal geometry obtained in this study and the experimental data (see Table 4.1).
(Figure 1(a)–(f): Reprinted from [13], with the permission of AIP Publishing)
(d)
(f)
c
c
c
a
a
b
β
β
α
(a)
(c)
(e)
b
a
a
b
a
b
γ
(h)
b
c
α
(k)
b
c
α
(g)
a
b
γ
(j)
a
b
γ
Fig. 4.1 Crystal structures of the single crystals of (a), (b): naphthalene, (c), (d): anthracene,
(e), (f): tetracene, (g), (h): pentacene, and (j), (k): hexacene [42]. The unit cell consists of the
two nonequivalent molecules placed at the corner and center of the cell, which are arranged in a
herringbone fashion. For tetracene, the Niggli cell parameters are displayed, for ease of comparison
between the crystal geometry obtained in this study and the experimental data (see Table 4.1).
(Figure 1(a)–(f): Reprinted from [13], with the permission of AIP Publishing)