Supramolecular ordering of tripod dyes at the air/water interface.
Monolayers of 2-(3,4,5-(trisdodecyloxyl)phenyl)[1,3,4]oxadiazole based "tripod" dye, P2G, has been studied at the air/water interface with in situ X-ray reflectivity. Compression of the disordered Langmuir-Blodgett monolayer film induces a transition to a unique ordered phase, representing a supramolecular assembly with a unique spatial distribution and orientation of the molecules. At low pressure, the molecules having face-on orientation are interdigitated by the three arms. After first transition in the pi-A isotherm, the molecular conformation is turned into an edge-on orientation, where the molecules are self-assembled into supramolecular structures.
Youm
Sang-Gil
SG
Department of Chemistry, Hanyang University, Seoul 133-791, Korea.
Paeng
Keewook
K
Choi
Young-Wook
YW
Park
Sungjin
S
Sohn
Daewon
D
Seo
Young-Soo
YS
Satija
Sushil K
SK
Kim
Bong Gi
BG
Kim
Sehoon
S
Park
Soo Young
SY