Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.278, 271-278, 1996
Electronic and Molecular-Structure of Room-Temperature Stable Triplet Carbene as Studied by ESR Spectroscopy
A ground-state tripler diphenylcarbene derivative, 2,2’,4,4’,6,6’-hexabromodiphenylcarbene 1 was synthesized and generated to be a model for chemically stable organic high-spin molecules. Electron Spin Resonance spectroscopy showed that 1 was a tripler molecule in the ground state and survived up to room temperature in the crystal state. 1 is the first stable tripler carbene in fluid solution at low temperature and in the crystal state at room temperature.