Contrasting Self-Assembly and Gelation Properties among Bis-urea- and Bis-amide-Functionalised Dialkoxynaphthalene (DAN) π Systems
作者:Anindita Das、Suhrit Ghosh
DOI:10.1002/chem.201002208
日期:2010.12.10
Gelled together: Self‐assembly and gelation studies of bis‐urea‐ and bis‐amide‐functionalised dialkoxynaphthalene chromophores (DAN‐U and DAN‐A, respectively) revealed contrasting J‐ and H‐type aggregation properties in solution, respectively (see scheme). DAN‐U was found to be a “super‐gelator” with much higher thermal stability, whereas DAN‐A showed gelation with superior mechanical stability.
orthogonal self‐assembly of donor and acceptor chromophores has been demonstrated. Suitably designed 1,5‐dialkoxynaphthalene (DAN) and naphthalene tetracarboxylic acid diimide (NDI) derivatives were used as the donor and acceptor systems, respectively. The molecular design for self‐sorting relies upon the precise control over the placement of the self‐complementaryhydrogen‐bonding units (amide functionality)