An arch-bridge-type fluorophore for bridging the gap between aggregation-caused quenching (ACQ) and aggregation-induced emission (AIE).

An arch-bridge-type fluorophore for bridging the gap between aggregation-caused quenching (ACQ) and aggregation-induced emission (AIE).
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DOI:
10.1039/c6sc01254j
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发表时间:
2016-07-01
期刊:
影响因子:
8.4
通讯作者:
Wan Y
Wan Y
中科院分区:
化学1区
文献类型:
--
作者:
Huang M;Yu R;Xu K;Ye S;Kuang S;Zhu X;Wan Y

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一种新颖独特的拱桥状定子,在通过分子内氢键对转子1进行刚性化后,提供了两类溶液和固体双光致发光(PL)分子。溶液和固体双光致发光(PL)分子填补了ACQ和AIE分子之间的巨大空白,以更详细地探索分子发光机制并促进实际应用。通过邻-OH或-NH2的分子内氢键对转子1进行刚性化后,获得独特的拱桥状噻唑并[5,4-b]噻吩并[3,2-e]吡啶部分作为定子,从而提供两类固体和溶液双PL分子。作为一个典型的例子,DF5 是双 PL 有源的。此外,大斯托克斯位移和高双PL效率(ΦF在固态中高达51%,在DMF中高达80%,在DMSO中高达74%,在水中高达100%),以及良好的热稳定性(Tm>200℃和T05>200℃),使其在有前景的光电和生物应用中更加实用。
A novel unique arch-bridge-like stator, after the rigidification of rotor 1 by intramolecular H-bonding, afforded two classes of solution and solid dual photoluminescence (PL) molecules. Solution and solid dual photoluminescence (PL) molecules fill the substantial gap between ACQ and AIE molecules to explore the mechanism of molecular luminescence in greater detail and to facilitate practical applications. A unique arch-bridge-like thiazolo[5,4-b]thieno[3,2-e]pyridine moiety is obtained as a stator after the rigidification of rotor 1 by intramolecular H-bonding of ortho –OH or –NH2 to afford two classes of solid and solution dual PL molecules. As a typical example, DF5 is dual PL active. Moreover, the large Stokes shift with high dual PL efficiency (ΦF up to 51% in the solid state, 80% in DMF, 74% in DMSO, and 100% in water), together with the good thermal stability (Tm > 200 °C and T05 > 200 °C), make it more practical for promising optoelectronic and biological applications.
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