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Mechanochromic and thermochromic luminescence of a copper iodide cluster.

Authors
  • Perruchas, Sandrine
  • Le Goff, Xavier F
  • Maron, Sébastien
  • Maurin, Isabelle
  • Guillen, François
  • Garcia, Alain
  • Gacoin, Thierry
  • Boilot, Jean-Pierre
Type
Published Article
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society
Publication Date
Aug 18, 2010
Volume
132
Issue
32
Pages
10967–10969
Identifiers
DOI: 10.1021/ja103431d
PMID: 20698644
Source
Medline
License
Unknown

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.

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