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Yujie Dong, Dr. Bin Xu, Jibo Zhang, Xiao Tan, Lijuan Wang, Jinlong Chen, Dr. Hongguang Lv, Dr. Shanpeng Wen, Dr. Bao Li, Dr. Ling Ye, Prof. Dr. Bo Zou and Prof. Dr. Wenjing Tian Piezochromic Luminescence Based on the Molecular Aggregation of 9,10-Bis((E)-2-(pyrid-2-yl)vinyl)anthracene Angewandte Chemie International Edition 51

Article first published online: 28 SEP 2012 | DOI: 10.1002/anie.201204660

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A chameleon under pressure: The observed piezochromic behavior of the title compound (BP2VA) was found to depend on its molecular aggregation state and specifically on the strength of the π–π interaction between the anthracene rings of adjacent molecules. When BP2VA is ground or placed under pressure, its molecular aggregation state changes, and a red shift in the fluorescence emission from green via orange to red occurs (see picture).

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