A Mechanochromic Single Crystal: Turning Two Color Changes into a Tricolored Switch. Issue 2 (24th November 2015)

• Record Type: Journal Article
• Authors: Ma, Zhiyong; Wang, Zhijian; Meng, Xiao; Ma, Zhimin; Xu, Zejun; Ma, Yuguo; Jia, Xinru
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 2(2016)
• Page Start: 519
• Page End: 522
• Publication Date: 2015-11-24
• Subjects: boron -- mechanochromic fluorescence -- multicolored switch -- rhodamine B -- single crystals; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201507197
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The single crystal of M‐4‐B was obtained by attaching the boron of BH3 to the amine linker between a tetraphenylethylene (TPE) unit and rhodamine B. M‐4‐B showed a novel sequential tricolor switching from dark blue to bluish‐green and to a reddish color upon grinding. The boron atom played a key role in developing the single crystal. Abstract : Tricolor switch : A single crystal of M‐4‐B was obtained by attaching the boron of BH3 to the amine linker between a tetraphenylethylene unit and rhodamine B. M‐4‐B showed a novel sequential tricolor switching from deep‐blue to bluish‐green and to a reddish color upon grinding. The boron atom played a key role in obtaining the single crystal (see picture: O red, N blue, B yellow).