Comparing spin-selective charge transport through donor-bridge-acceptor molecules with different oligomeric aromatic bridges.
Burning bridges: The exponential distance dependence (β value) of singlet and triplet charge recombination (CR) pathways is determined for three donor-bridge-acceptor (DBA) molecules. p-Phenylethynylene and fluorenone bridges have similar β values, which differ significantly from those of p-phenylene bridges, thus implying that β for both singlet and triplet CR is system-dependent, not bridge-specific.
Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
Amy M
AM
Scott
Annie Butler
AB
Ricks
Michael T
MT
Colvin
Michael R
MR
Wasielewski
D000873:Anthracenes / Q000737:chemistry*; D004579:Electron Transport; D005449:Fluorenes / Q000737:chemistry; D007700:Kinetics; D008956:Models, Chemical; D009281:Naphthalenes / Q000737:chemistry*; D055668:Photochemical Processes; D010777:Photochemistry; D014050:Toluene / Q000737:chemistry*
C547166:3,5-dimethyl-4-(9-anthracenyl)julolidine; D000873:Anthracenes; D005449:Fluorenes; D009281:Naphthalenes; C547163:naphthalene-1,8:4,5-bis(dicarboximide); D014050:Toluene