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Chemical Science Vol - 2 Issue - 9

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Chemical Science Vol -1

Vapochromic and semiconducting solids of a bifunctional hydrocarbon

Content Provider	Royal Society of Chemistry (RSC)
Author	Liu, Danqing Song, Kesheng Xia, Hai Miao, Qian
Copyright Year	2011
Abstract	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 cm2 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.
Starting Page	2402
Ending Page	2406
Page Count	5
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	2
Issue Number	12
Journal	Chemical Science
DOI	10.1039/c1sc00494h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cumulene Extrinsic semiconductor Hydrocarbon Clathrate compound Toluene Cycloheptatriene M-Xylene Crystal structure
Content Type	Text
Resource Type	Article
Subject	Chemistry

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