Sl. Hinchley et al., Persistent phosphinyl radicals from a bulky diphosphine: an example of a molecular jack-in-the-box, CHEM COMMUN, (20), 2000, pp. 2045-2046
The structure of the phosphinyl radical, (P) over dot R-2 [R = CH(SiMe3)(2)
], has been determined by gas-phase electron diffraction (GED) together wit
h ab initio molecular orbital calculations, and that of the corresponding d
iphosphine, (PR2)(2), has been established by X-ray crystallography; the di
phosphine behaves as an energy storage reservoir.