Journal
INORGANIC CHEMISTRY
Volume 56, Issue 2, Pages 943-949Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b02571
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [2014R1A1A4A01009105, 2015R1D1A4A01020317, 2016R1D1A3B03934096]
- National Research Foundation of Korea [2014R1A1A4A01009105, 2016R1D1A3B03934096, 2015R1D1A4A01020317] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A copper(I) coordination polymer, [Cu2I2L2] (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 iri 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.
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