Abstract
The syntheses of polyamines containing two or three 2,2'-(bisamino)diphenyl ether units linked together, designed for self-assembly following lithiation, are reported. The X-ray crystal structures of two of the bis[2,2'-(bisamido)diphenyl ethers] are described. The ligand, which is linked by an ethylene glycol spacer, exhibits a coiled conformation constrained by intramolecular hydrogen bonds and supplemented by [CH-π] interactions. The ligand, which is linked by a more rigid bridge, containing a paraphenylene unit, displays a stretched conformation stabilised by intramolecular hydrogen bonds and intramolecular T-type aromatic-aromatic edge-to-face interactions.
Original language | English (US) |
---|---|
Pages (from-to) | 930-940 |
Number of pages | 11 |
Journal | Synthesis |
Issue number | 8 |
DOIs | |
State | Published - 1996 |
Keywords
- 2,2'-(bisamino)diphenyl ether
- lithium amides
- self-assembly
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry