Fluorophilicity and fluorophobicity in supramolecular assemblage

FLUO 4

Taizo Ono, t.ono@aist.go.jp1, Yoshio Hayakawa, hayakawa-y@aist.go.jp1, Hidehiro Uekusa, uekusa@cms.titech.ac.jp2, and Nobuhiro Yasuda, nyasuda@chem.titech.ac.jp3. (1) Research Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology (AIST), Moriyama-ku, Nagoya, 463-8560, Japan, (2) Department of Chemistry and Materials Science, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo, 152-8551, Japan, (3) Research and Utilization Division, Materials Structure Group I, Japan Synchrotron Radiation Research Institute (JASRI/Spring-8), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
Supramolecular assemblage is one of key elements for appearance of functions. Principally used intermolecular interactions for controlling the assemblage are through hydrogen bonding, hydrophobicity, and hydrophilicity. Fluorophobicity and fluorophilicity have recently joined as new important players. We have shown these fluorine-based forces are useful for crystal engineering. Our strategy is based on a simple idea to combine both fluorophilic and fluorophobic parts in one molecule. Such hydro-fluoro-hybrid compounds represented by RF-X-RH recognize each other by exertion of both fluorophilic and fluorophobic intermolecular interactions in unison and thus they self-assemble in a very specific manner with the formation of micro-fluorophase separation in crystal. We have systematically investigated various combinations of hydro- and fluoro-parts to find relationship between crystal packing and molecular structures. We will show our new fluorine-based nanofabrication of functional materials and propose such hybrid use of fluorophilicity and fluorophobicity in unison for the material design.
 

Nanostructured Fluorocarbons: Smart Tectons for Self-Assembly
12:00 PM-5:05 PM, Sunday, August 19, 2007 BCEC -- 252B, Oral

Division of Fluorine Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007