Oligo(p-phenylene vinylene)s as a "New" class of piezochromic fluorophores
Oligo(p-phenylene vinylene)s as a "New" class of piezochromic fluorophores
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DOI：
10.1002/adma.200701772
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发表时间：
2008-01-07
影响因子：
29.4
通讯作者：
Weder, Christoph
中科院分区：
文献类型：
--
作者：
Kunzelman, Jill;Kinami, Maki;Weder, Christoph
氰基取代的低聚对苯乙炔衍生物可显示压致变色荧光。这种罕见的和理想的效果是通过平衡这些分子中的π-π和脂肪族相互作用，通过在中心环中的电子密度和外围脂肪族尾部的长度的变化。这导致荧光团可以采用不同的超分子结构，因此可以在压缩时改变其固态发射特性。
Cyano-substituted oligo(p-phenylene vinylene) derivatives can display piezochromic fluorescence. This rare and desirable effect is achieved by balancing pi-pi and aliphatic interactions in these molecules through the variation of electron density in the central ring and the length of peripheral aliphatic tails. This leads to fluorophores which can adopt different supramolecular structures and as a result can change their solid-state emission characteristics upon compression.