title: Linked photoswitches where both photochromes open and close.
abstract: In the dithienylethene photochrome series, linking two photochromes together directly, or with an ethynyl spacer, shuts down the photoswitching of one of the photochromes. We report here, that for dihydropyrenes, two photochromes can be linked together without affecting the ability of either to photoswitch. [reaction--see text]
authors.affiliation: Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6.
authors.forename: Reginald H
authors.initials: RH
authors.lastname: Mitchell
authors.forename: Subhajit
authors.initials: S
authors.lastname: Bandyopadhyay