Supramolecular chromotropsin of the crystalline phases of 4,5,6,7-tetrafluorobenzo-2,1,3-telluradizole

The phase that is most stable under ambient pressure and temperature has puckered supramolecular ribbon polymers assembled by Te-N secondary bonding interactions and has disclosed a characteristic red-orange color. Computational DFT studies have shown that the changes in optical properties are related to intermolecular mixing of [pi] orbitals enabled by the supramolecular interactions and the symmetry of the supramolecular synthon.