Control over hierarchy levels in the self-assembly of stackable nanotoroids.
We report a precise control over the hierarchy levels in the outstanding self-organization process shown by chiral azobenzene dimer 1. This compound forms uniform toroidal nanostructures that can hierarchically organize into chiral nanotubes under the control by temperature, concentration, or light. The nanotubes further organized into supercoiled fibrils, which finally intertwined to form double helices with one-handed helical sense.
Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan. yagai@faculty.chiba-u.jp
Shiki
S
Yagai
Mitsuaki
M
Yamauchi
Ai
A
Kobayashi
Takashi
T
Karatsu
Akihide
A
Kitamura
Tomonori
T
Ohba
Yoshihiro
Y
Kikkawa
D001391:Azo Compounds / Q000737:chemistry*; D019281:Dimerization; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D043942:Nanotubes / Q000737:chemistry / Q000648:ultrastructure; D013237:Stereoisomerism
D001391:Azo Compounds; C009850:azobenzene