Chemistry Reference
In-Depth Information
r
la3d
r
Hi
30
30
25
25
20
20
15
15
10
10
5
5
30
25
20
15
10
5
-10
-5
0
5
10
15
20
25
30
30
25
20
15
r
Pn3m
10
5
30
25
30
20
25
15
20
15
10
10
5
5
Figure 1.9
SCFT predictions of density profi les (colored) in (a) H
II
, (b) Ia3d, and
(c) Pn3m and their matching to size predicted by geometrical considerations (black
circles). [Reproduced with permission from Lee et al. (2008).]
such, is diffi cult to assess experimentally. As a consequence, most of the work
carried out in this fi eld is either theoretical or numerical. Pioneering work
from Siegel and co-workers based on cryogenic transmission electron micros-
copy (Siegel and Epand, 1997; Siegel et al., 1994) has demonstrated the pres-
ence of transient structures observed during transit through order-order
transitions. Furthermore, in recent times, an experimental description of inter-
mediate steps involving long-living intermediate structures when moving from
a lyotropic liquid-crystalline phase to another one has been possible via syn-
chrotron X-ray diffraction (Angelov et al., 2009). Very recently, work from
Search WWH ::
Custom Search