1H NMR STUDY OF THE HOST-GUEST CHEMISTRY IN A SUPRAMOLECULAR HELICATE FEII 2L3 SOLUTION
A novel [FeII2L3]4+ metallo-organic helicate results from subcomponent self-assembly of a C3-symmetric triamine (4,4',4''- (1,3,5-triazine-2,4,6-triyl) trianiline), octahedral iron(II) and 2-formyl pyridine in CH3CN solution. The constitution of this supramolecular helicate was confirmed by ESI-MS and 1H NMR spectra. Different planar aromatic guests were selected to investigate host-guest interactions by shifts of 1H NMR signals. The results show that electron-rich aromatic molecules with matched size and symmetry, such as pyrene, are subject to be bound with the outstretched arms of the helicate ligand via aromatic p–p interactions.
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2019
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422019000400412 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|