@article{KnorrSokkarSchottetal.2016,
  author    = {Knorr, Johannes and Sokkar, Pandian and Schott, Sebastian and Costa, Paolo and Thiel, Walter and Sander, Wolfram and Sanchez-Garcia, Elsa and Nuernberger, Patrick},
  title     = {Competitive solvent-molecule interactions govern primary processes of diphenylcarbene in solvent mixtures},
  series = {Nature Communications},
  volume    = {7},
  journal   = {Nature Communications},
  doi       = {10.1038/ncomms12968},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-165954},
  pages     = {12968},
  year      = {2016},
  abstract  = {Photochemical reactions in solution often proceed via competing reaction pathways comprising intermediates that capture a solvent molecule. A disclosure of the underlying reaction mechanisms is challenging due to the rapid nature of these processes and the intricate identification of how many solvent molecules are involved. Here combining broadband femtosecond transient absorption and quantum mechanics/molecular mechanics simulations, we show for one of the most reactive species, diphenylcarbene, that the decision-maker is not the nearest solvent molecule but its neighbour. The hydrogen bonding dynamics determine which reaction channels are accessible in binary solvent mixtures at room temperature. In-depth analysis of the amount of nascent intermediates corroborates the importance of a hydrogen-bonded complex with a protic solvent molecule, in striking analogy to complexes found at cryogenic temperatures. Our results show that adjacent solvent molecules take the role of key abettors rather than bystanders for the fate of the reactive intermediate.},
  language  = {en}
}
@article{KimChristlKochl1990,
  author    = {Kim, E. and Christl, Manfred and Kochl, J. K.},
  title     = {Charge-Transfer Cycloaddition of Homobenzvalene with Tetracyanoethylene},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-58537},
  year      = {1990},
  abstract  = {The transient yellow color observed in the cycloaddition of homobenzvalene (HB) with tetracyanoethylene (TCNE) is associated with the charge-transfer complex [HB, TCNE). The deliberate photoexcitation of [HB,TCNE) affords a mixture of charge-transfer cycloadducts (1, 2, and 3) that differs from that obtained in thermal cycloaddition. The relationship of {HB t TCNE•) radical-ion pair (as the critical reactive intermediate in charge-transfer cycloaddition) to the activation process for thermal cycloaddition is discussed.},
  subject      = {Organische Chemie},
  language  = {en}
}