title: Mechanochromic and thermochromic luminescence of a copper iodide cluster.
abstract: The mechanochromic and thermochromic luminescence properties of a molecular copper(I) iodide cluster formulated [Cu(4)I(4)(PPh(2)(CH(2)CH=CH(2)))(4)] are reported. Upon mechanical grinding in a mortar, its solid-state emission properties are drastically modified as well as its thermochromic behavior. This reversible phenomenon has been attributed to distortions in the crystal packing leading to modifications of the intermolecular interactions and thus of the [Cu(4)I(4)] cluster core geometry. Notably, modification of the Cu-Cu interactions seems to be involved in this phenomenon directly affecting the emissive properties of the cluster.
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS - Ecole Polytechnique, 91128 Palaiseau Cedex, France. sandrine.perruchas@polytechnique.edu
authors.forename: Sandrine
authors.initials: S
authors.lastname: Perruchas
authors.forename: Xavier F
authors.initials: XF
authors.lastname: Le Goff
authors.forename: Sébastien
authors.initials: S
authors.lastname: Maron
authors.forename: Isabelle
authors.initials: I
authors.lastname: Maurin
authors.forename: François
authors.initials: F
authors.lastname: Guillen
authors.forename: Alain
authors.initials: A
authors.lastname: Garcia
authors.forename: Thierry
authors.initials: T
authors.lastname: Gacoin
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Boilot
mesh_terms: D003300:Copper / Q000737:chemistry*; D007454:Iodides / Q000737:chemistry*; D008163:Luminescent Measurements; D055595:Mechanical Phenomena; D008958:Models, Molecular; D008968:Molecular Conformation; D010720:Phosphines / Q000737:chemistry; D013696:Temperature
chemical_list: D007454:Iodides; D010720:Phosphines; D003300:Copper