Vapochromic and semiconducting solids of a bifunctional hydrocarbon
Publication in refereed journal

香港中文大學研究人員

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摘要This study explores a bifunctional hydrocarbon, which has two non-planar dibenzocycloheptatriene moieties linked by three cumulative C-C double bonds. This flexible conjugated molecule can adopt two conformations, namely, syn and anti, in its crystals. Of particular interest is that the molecule's solids not only function as p-type semiconductors with field effect mobility of 0.02 cm(2) V(-1) S(-1) but also exhibit vapochromic behavior with high selectivity. Upon selectively trapping specific volatile molecules, such as toluene and m-xylene, in the crystal lattice, the guest-free crystals of the syn conformer change to the clathrate crystals of the anti conformer accompanied by a change of color from red to orange. The unique combination of the two useful functions of this molecule can be attributed to its cycloheptatriene and cumulene moieties, both of which have rarely been used in building blocks for organic functional materials.
著者Xia H, Liu DQ, Song K, Miao Q
期刊名稱Chemical Science
出版年份2011
月份1
日期1
卷號2
期次12
出版社Royal Society of Chemistry: Chemical Science
頁次2402 - 2406
國際標準期刊號2041-6520
電子國際標準期刊號2041-6539
語言英式英語
Web of Science 學科類別Chemistry; Chemistry, Multidisciplinary; CHEMISTRY, MULTIDISCIPLINARY

上次更新時間 2021-19-02 於 23:39