Supramolecular Ordering of Tripod Dyes at the Air/Water Interface

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• 作者：Sang-Gil Youm ; Keewook Paeng ; Young-Wook Choi ; Sungjin Park ; Daewon Sohn ; Young-Soo Seo ; Sushil K. Satija ; Bong Gi Kim ; Sehoon Kim ; and Soo Young Park
• 刊名：Langmuir
• 出版年：2005
• 出版时间：June 21, 2005
• 年：2005
• 卷：21
• 期：13
• 页码：5647 - 5650
• 全文大小：342K
• 年卷期：v.21,no.13(June 21, 2005)
• ISSN：1520-5827

文摘

Monolayers of 2-(3,4,5-(trisdodecyloxyl)phenyl)[1,3,4]oxadiazole based "tripod" dye, P2G, has been studiedat the air/water interface with in situ X-ray reflectivity. Compression of the disordered Langmuir-Blodgettmonolayer film induces a transition to a unique ordered phase, representing a supramolecular assemblywith a unique spatial distribution and orientation of the molecules. At low pressure, the molecules havingface-on orientation are interdigitated by the three arms. After first transition in the -A isotherm, themolecular conformation is turned into an edge-on orientation, where the molecules are self-assembled intosupramolecular structures.