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Emission and Emissive Mechanism of Nonaromatic Oxygen Clusters
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2018-09-03 , DOI: 10.1002/marc.201800528 Yunzhong Wang 1 , Xin Bin 1 , Xiaohong Chen 1 , Shuyuan Zheng 1 , Yongming Zhang 1 , Wang Zhang Yuan 1
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2018-09-03 , DOI: 10.1002/marc.201800528 Yunzhong Wang 1 , Xin Bin 1 , Xiaohong Chen 1 , Shuyuan Zheng 1 , Yongming Zhang 1 , Wang Zhang Yuan 1
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Nonaromatic luminophores without remarkable conjugates have aroused great attention. Their emission mechanism, however, remains an open question. Meanwhile, previous studies generally focus on aliphatic amine and/or carbonyl‐containing systems; those with merely oxygen moieties (i.e., ether, hydroxyl) are scarcely touched. Recently, the clustering‐triggered emission (CTE) mechanism is proposed to rationalize the emission of nonconventional luminophores, according to which compounds bearing purely oxygen moieties can also be emissive. To check this conjecture, herein, both nonaromatic compound of xylitol and polymers of PEG and F127 are studied, which are found to be emissive in concentrated solutions and solids. Furthermore, cryogenic‐persistent phosphorescence of the compounds and even persistent room temperature phosphorescence of xylitol crystals are observed. Additionally, their potential application as Fe3+ sensors is demonstrated. These results not only verify the rationality of the CTE mechanism but also suggest the possibility to discover and design new luminophores according to it.
中文翻译：
非芳香族氧簇的发射与发射机理
没有显着共轭物的非芳香族发光体引起了极大的关注。然而，它们的排放机制仍然是一个悬而未决的问题。同时，以前的研究通常集中在脂肪族胺和/或羰基体系。仅具有氧部分（即，醚，羟基）的那些几乎不被触摸。最近，提出了簇触发发射（CTE）机制以合理化非常规发光体的发射，据此，带有纯氧部分的化合物也可以发射。为了证实这一推测，本文对木糖醇的非芳族化合物以及PEG和F127的聚合物进行了研究，发现它们在浓溶液和固体中都可以发射。此外，观察到化合物的低温持久性磷光，甚至木糖醇晶体的持久性室温磷光。此外，它们作为铁的潜在应用演示了3个以上的传感器。这些结果不仅验证了CTE机制的合理性，而且还暗示了根据它发现和设计新的发光体的可能性。
更新日期：2018-09-03
中文翻译：
非芳香族氧簇的发射与发射机理
没有显着共轭物的非芳香族发光体引起了极大的关注。然而，它们的排放机制仍然是一个悬而未决的问题。同时，以前的研究通常集中在脂肪族胺和/或羰基体系。仅具有氧部分（即，醚，羟基）的那些几乎不被触摸。最近，提出了簇触发发射（CTE）机制以合理化非常规发光体的发射，据此，带有纯氧部分的化合物也可以发射。为了证实这一推测，本文对木糖醇的非芳族化合物以及PEG和F127的聚合物进行了研究，发现它们在浓溶液和固体中都可以发射。此外，观察到化合物的低温持久性磷光，甚至木糖醇晶体的持久性室温磷光。此外，它们作为铁的潜在应用演示了3个以上的传感器。这些结果不仅验证了CTE机制的合理性，而且还暗示了根据它发现和设计新的发光体的可能性。
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