Photoinduced Solid State Conversion of a Radical σ-Dimer to a π-Radical Pair.

Irradiation in the solid state of the hypervalent 4c-6e S···S–S···S bridged σ-dimer of a bisdithiazolyl radical leads to its photodissociation into a pair of π-radicals. The transformation has been monitored by optical spectroscopy, single crystal X-ray diffraction, and magnetic susceptibility measu...

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Detalles Bibliográficos
Publicado en:	Journal of the American Chemical Society Vol. 135; no. 42; pp. 15674 - 15678
Autores principales:	Hoa Phan, Lekin, Kristina, Winter, Stephen M., Oak1ey, Richard T., Shatruk, Michael
Formato:	Artículo
Publicado:	American Chemical Society 10/23/2013
Materias:	Dimers Geminate pairs (Molecules) Solid state chemistry Hypervalence (Theoretical chemistry) Photodissociation Single crystals X-ray diffraction Magnetic susceptibility
Acceso en línea:	Ver este registro en EBSCOhost

Descripción
Sumario:	Irradiation in the solid state of the hypervalent 4c-6e S···S–S···S bridged σ-dimer of a bisdithiazolyl radical leads to its photodissociation into a pair of π-radicals. The transformation has been monitored by optical spectroscopy, single crystal X-ray diffraction, and magnetic susceptibility measurements. As a result of the large electronic reorganization involved in the dimer-to-radical interconversion, the photogenerated S = 1/2 radical state is remarkably thermally stable, persisting to 242 K before reverting to the S = 0 dimer.