title: Mechanochromic luminescence and aggregation induced emission for a metal-free β-diketone.
abstract: Reversible mechanochromic luminescence (ML) is known for difluoroboron β-diketonates (BF2bdks). Here, we report ML for the methoxy-substituted dinaphthoylmethane (dnmOMe) ligand even without coordination to boron. In addition, dnmOMe shows solvatochromism and aggregation-induced emission (AIE). Diketone thin films showed high contrast emission when smeared, and rapid recovery of the pre-smeared state at room temperature.
authors.affiliation: Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA. fraser@virginia.edu.
authors.forename: Tristan
authors.initials: T
authors.lastname: Butler
authors.forename: William A
authors.initials: WA
authors.lastname: Morris
authors.forename: Jelena
authors.initials: J
authors.lastname: Samonina-Kosicka
authors.forename: Cassandra L
authors.initials: CL
authors.lastname: Fraser