发光
化学
结晶度
聚合物
相变
乙腈
铜
粉末衍射
光化学
发光测量
拉曼光谱
相(物质)
结晶学
光电子学
光学
有机化学
材料科学
凝聚态物理
物理
作者
Eunjin Kwon,Jineun Kim,Kang Yeol Lee,Tae Ho Kim
标识
DOI:10.1021/acs.inorgchem.6b02571
摘要
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.
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