Shear-and UV-induced fluorescence switching in stilbenic π-dimer crystals powered by reversible [2+ 2] cycloaddition

JW Chung, Y You, HS Huh, BK An…

Index: Chung, Jong Won; You, Youngmin; Hoh, Hyun Sue; An, Byeong-Kwan; Yoon, Seong-Jun; et al. Journal of the American Chemical Society, 2009 , vol. 131, p. 8163 - 8172

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Citation Number: 147

Abstract

We have designed and synthesized asymmetric cyano-stilbene derivatives containing trifluoromethyl (− CF3) substituents with the aim of producing tightly packed π-dimer systems that as crystals exhibit reversible [2+ 2] cycloaddition with characteristic fluorescence modulation.(Z)-3-(3′, 5′-Bis (trifluoromethyl) biphenyl-4-yl)-2-(4′-(trifluoromethyl) biphenyl-4-yl) acrylonitrile (CN (L)-TrFMBE) and its derivatives were found to form ...