Suchergebnisse - RERO DOC

The Primary steps in excited-state hydrogen transfer: the phototautomerization of o-nitrobenzyl derivatives

Šolomek, Tomáš ; Bochet, Christian G. ; Bally, Thomas

In: Chemistry – A European Journal, 2014, vol. 20, no. 26, p. 8062–8067

The quantum yield for the release of leaving groups from o-nitrobenzyl “caged” compounds varies greatly with the nature of these leaving groups, for reasons that have never been well understood. We found that the barriers for the primary hydrogen-atom transfer step and the efficient nonradiative processes on the excited singlet and triplet surfaces determine the quantum yields. The...

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Oxidative rearrangements of tricyclic vinylcyclobutane derivatives

Grota, Juliane ; Mattay, Jochen ; Piech, Krzysztof ; Bally, Thomas

In: Chemistry - A European Journal, 2006, vol. 12(17), p. 4559-4567

Three tricyclic vinylcyclobutanes (3-methylenetricyclo[5.3.0.02,6]decanes 1-3) have been subjected to ionization by photoinduced electron transfer in solution and by X-irradiation in Ar matrices. All three compounds undergo oxidative cycloreversion; the cleavage of the four-membered ring, however, occurs in a different direction depending on the presence of a methyl group...

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