title: Non-Phase-Transition Luminescence Mechanochromism of a Copper(I) Coordination Polymer.
abstract: A copper(I) coordination polymer, [Cu2I2L2]n(CP 1), shows luminescence mechanochromism with a color change from greenish-blue to yellow upon the application of pressure. Powder X-ray diffraction and Raman studies reveal that the changes in the bond lengths in crystalline CP 1 are the main cause of luminescence mechanochromism. The luminescence mechanochromic process of CP 1 preserves its crystallinity with a small lattice distortion, despite very high pressure, and it is a non-phase-transition process. After the addition of several drops of acetonitrile to the ground and compressed samples, the original greenish-blue emissive and crystalline states are restored. Therefore, the luminescence color conversion processes are fully reversible.
authors.affiliation: Department of Chemistry (BK21 plus) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea.
authors.forename: Eunjin
authors.initials: E
authors.lastname: Kwon
authors.affiliation: Department of Chemistry (BK21 plus) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea.
authors.forename: Jineun
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Chemistry (BK21 plus) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea.
authors.forename: Kang Yeol
authors.identifier: http://orcid.org/0000-0001-8055-1635
authors.initials: KY
authors.lastname: Lee
authors.affiliation: Department of Chemistry (BK21 plus) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea.
authors.forename: Tae Ho
authors.identifier: http://orcid.org/0000-0003-0415-7374
authors.initials: TH
authors.lastname: Kim