Phenaleno[1,9-cd]dithiolyl: the first example of a monomeric, coplanar, carbon-based free radical
Abstract
The phenaleno[1,9-cd]dithiolyl radical has been prepared in solution by electrochemical and chemical reduction of phenaleno[1,9-cd]dithiolium hexafluorophosphate; it has been studied by e.s.r., mass, and electronic spectroscopy, and is monomeric in solution in the temperature range 19 to –95°C.