By courtesy of:
Andreas F. M. Kilbinger and Robert H. Grubbs*
Angew. Chem. Int. Ed. 2002, 41, No. 9, 1563
and
a new one about fluoro hydrogel:
Glycosyl-nucleoside fluorinated amphiphiles as components of nanostructured hydrogels
Guilhem Godeau, Christophe Brun, Hélène Arnion, Cathy Staedel, Philippe Barthélémy *
Tetrahedron Letters 2010, 51, 1012–1015