71383-01-2Relevant articles and documents
Intramolecular Singlet Fission in Oligoacene Heterodimers
Sanders, Samuel N.,Kumarasamy, Elango,Pun, Andrew B.,Steigerwald, Michael L.,Sfeir, Matthew Y.,Campos, Luis M.
, p. 3373 - 3377 (2016)
We investigate singlet fission (SF) in heterodimers comprising a pentacene unit covalently bonded to another acene as we systematically vary the singlet and triplet pair energies. We find that these energies control the SF process, where dimers undergo SF provided that the resulting triplet pair energy is similar or lower in energy than the singlet state. In these systems the singlet energy is determined by the lower-energy chromophore, and the rate of SF is found to be relatively independent of the driving force. However, triplet pair recombination in these heterodimers follows the energy gap law. The ability to tune the energies of these materials provides a key strategy to study and design new SF materials - an important process for third-generation photovoltaics. Organic electronics: A series of oligoacene heterodimers was synthesized to test the energetic requirements for singlet fission - a photophysical process that yields two triplet excitons from a single photon. Thus a possibility is offered to tune this process.
Synthesis of Benzo-Fused Tetraphenylenes and Crystal Structure of a 4:1 Clathrate Inclusion Compound of Dibenzotetraphenylene with p-Xylene
Man, Yuet-Ming,Mak, Thomas C. W.,Wong, Henry N. C.
, p. 3214 - 3221 (2007/10/02)
Benzo-fused tetraphenylenes 2-6 were successfully prepared by the combined deployment of the Diels-Alder cycloaddition between some strained cyclooctynes and furans and subsequent low-valent-titanium deoxygenation of the resulting 1,4-endoxides.As expecte
