1240856-69-2Relevant academic research and scientific papers
Pressure Control of Cuprophilic Interactions in a Luminescent Mechanochromic Copper Cluster
Benito, Quentin,Baptiste, Benoit,Polian, Alain,Delbes, Ludovic,Martinelli, Lucio,Gacoin, Thierry,Boilot, Jean-Pierre,Perruchas, Sandrine
, p. 9821 - 9825 (2015)
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.
Mechanochromic and thermochromic luminescence of a copper iodide cluster
Perruchas, Sandrine,Goff, Xavier F. Le,Maron, Sebastien,Maurin, Isabelle,Guillen, Franciois,Garcia, Alain,Gacoin, Thierry,Boilot, Jean-Pierre
, p. 10967 - 10969 (2010)
The mechanochromic and thermochromic luminescence properties of a molecular copper(I) iodide cluster formulated [Cu4I4(PPh 2(CH2CH=CH2))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 4I4] 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.
