Back to Search
Start Over
Supramolecular dendritic pi-conjugated systems: synthesis of glycinylurea functionalized pi-conjugated diphenylanthracene guests and their complexation with dendritic hosts. Part I
- Source :
- Revista de Chimie, 58(2), 133-140. Syscom 18 SRL
- Publication Year :
- 2007
-
Abstract
- Glycinylurea functionalized p-conjugated diphenylanthracene guests (DPA guests) that bind to adamantyl urea modified dendritic hosts were synthesized and fully characterized by NMR spectroscopy (1H-NMR, 13C-NMR) and MALDI-TOF-MS. The resulting supramolecular assemblies have been investigated with respect to their binding properties. DPA guests molecules were able to click into urea functionalized N,N-bis methyl amine host as a result of acid-base (between COOH of the guest and amines of the host) and hydrogen bonding interactions (between the urea linkages of dendrimer and the guest). The guest molecules were bound as 1:1 inclusion complexes and the association constants for both guests have been calculated. Subsequently, an adamantyl urea modified fifth generation poly(propylene imine) dendrimer was synthesized as a multivalent host which contains 32 N,Nbis amine binding sites. Size exclusion chromatography showed that 32 of the DPA guests strongly bind to the fifth generation adamantyl functionalized dendritic host.
- Subjects :
- macromolecular substances
Subjects
Details
- Language :
- English
- ISSN :
- 00347752
- Database :
- OpenAIRE
- Journal :
- Revista de Chimie, 58(2), 133-140. Syscom 18 SRL
- Accession number :
- edsair.narcis........022a4246703946ba34cf7affc39fa024