title: Pressure Control of Cuprophilic Interactions in a Luminescent Mechanochromic Copper Cluster.
abstract: For the development of applications based on mechanochromic luminescent materials, a comprehensive study of the mechanism responsible for the emission changes is required. We report the study of a mechanochromic copper iodide cluster under hydrostatic pressure, which allows control of crystal packing via modification of the intermolecular interactions. In situ single-crystal powder X-ray diffraction analysis and emission measurements under pressure permit one to establish a direct correlation between the molecular structure and luminescence properties and, in particular, to demonstrate that cuprophilic interactions are responsible for the stimuli-responsive luminescence properties of such multinuclear coordination compounds.
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique , 91128 Palaiseau Cedex, France.
authors.forename: Quentin
authors.initials: Q
authors.lastname: Benito
authors.affiliation: Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UPMC Sorbonne Universités, CNRS UMR 7590 , 75005 Paris, France.
authors.forename: Benoit
authors.initials: B
authors.lastname: Baptiste
authors.affiliation: Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UPMC Sorbonne Universités, CNRS UMR 7590 , 75005 Paris, France.
authors.forename: Alain
authors.initials: A
authors.lastname: Polian
authors.affiliation: Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UPMC Sorbonne Universités, CNRS UMR 7590 , 75005 Paris, France.
authors.forename: Ludovic
authors.initials: L
authors.lastname: Delbes
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique , 91128 Palaiseau Cedex, France.
authors.forename: Lucio
authors.initials: L
authors.lastname: Martinelli
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique , 91128 Palaiseau Cedex, France.
authors.forename: Thierry
authors.initials: T
authors.lastname: Gacoin
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique , 91128 Palaiseau Cedex, France.
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Boilot
authors.affiliation: Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique , 91128 Palaiseau Cedex, France.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Perruchas