Calixarenes constrained to 1,3-alternate conformation and functionalized at the upper rim with four and two nitronyl nitroxides have been synthesized, and characterized by X-ray crystallography, magnetic resonance (EPR and 1H NMR) spectroscopy, and magnetic studies. Such calixarene tetraradicals and diradicals provide scaffolds for through-bond and through-space intramolecular exchange couplings.
- Magnetic properties
- Paramagnetic NMR spectroscopy
ASJC Scopus subject areas
- Drug Discovery
- Organic Chemistry