title: Reversible mechanochromic luminescence of [(C6F5Au)2(mu-1,4-diisocyanobenzene)].
abstract: Reversible mechanochromic luminescence of [(C6F5Au)2(mu-1,4-diisocyanobenzene)] is reported. Grinding of the complex induced a photoluminescent color change, which was restored by exposure to a solvent. This cycle was repeated 20 times with no color degradation in the emissions. Their optical properties, X-ray crystallographic analysis, IR, and XRD measurements strongly suggested that the change in the molecular arrangement is responsible for this mechanochromic property. Intermolecular aurophilic bondings presumably play a key role in the altered emission.
authors.affiliation: Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan. hajito@sci.hokudai.ac.jp
authors.forename: Hajime
authors.initials: H
authors.lastname: Ito
authors.forename: Tomohisa
authors.initials: T
authors.lastname: Saito
authors.forename: Naoya
authors.initials: N
authors.lastname: Oshima
authors.forename: Noboru
authors.initials: N
authors.lastname: Kitamura
authors.forename: Shoji
authors.initials: S
authors.lastname: Ishizaka
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hinatsu
authors.forename: Makoto
authors.initials: M
authors.lastname: Wakeshima
authors.forename: Masako
authors.initials: M
authors.lastname: Kato
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Tsuge
authors.forename: Masaya
authors.initials: M
authors.lastname: Sawamura