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A New Squaraine‐Linked Triazinyl‐Based Covalent Organic Frameworks: Preparation, Characterization and Application for Sensitive and Selective Determination of Fe3+ Cations
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-09-10 , DOI: 10.1002/slct.202002232 Rui Xue 1 , Hao Gou 1 , Yanping Zheng 1 , Li Zhang 1 , Yinsheng Liu 1 , Honghong Rao 1 , Guohu Zhao 1
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-09-10 , DOI: 10.1002/slct.202002232 Rui Xue 1 , Hao Gou 1 , Yanping Zheng 1 , Li Zhang 1 , Yinsheng Liu 1 , Honghong Rao 1 , Guohu Zhao 1
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A new triazinyl‐based covalent organic frameworks(COFs) linked by squaraine(ST‐COF‐1) was synthesized via condensation of squaric acid (SA) and 1,3,5‐triazine‐2,4,6‐triamine (Melamine, MA). The BET surface area of ST‐COF‐1 was calculated as 484.12 m2 g−1. The suspension of this material will emit strong blue fluorescence under the irradiation of 365 nm ultraviolet lamp. Strong quenching effects of Fe3+ on the fluorescence of the COFs allowed selective chemosensing for Fe3+ cation. In addition, some nitro aromatic compounds also cause strong fluorescence quenching, which proves that this material can also be used for the qualitative detection of nitro aromatic compounds.
中文翻译：
一种新的基于方胺连接的三嗪基共价有机骨架：Fe3 +阳离子的灵敏和选择性测定的制备，表征和应用
通过将方酸（SA）与1,3,5-三嗪-2,4,6-三胺（三聚氰胺，嘛）。ST‐COF-1的BET表面积经计算为484.12 m 2 g -1。该材料的悬浮液在365 nm紫外线灯的照射下会发出强烈的蓝色荧光。Fe 3+对COFs荧光的强烈猝灭作用允许对Fe 3+阳离子进行选择性化学传感。另外，一些硝基芳族化合物也会引起强烈的荧光猝灭，这证明该材料也可用于硝基芳族化合物的定性检测。
更新日期：2020-09-10
中文翻译：
一种新的基于方胺连接的三嗪基共价有机骨架：Fe3 +阳离子的灵敏和选择性测定的制备，表征和应用
通过将方酸（SA）与1,3,5-三嗪-2,4,6-三胺（三聚氰胺，嘛）。ST‐COF-1的BET表面积经计算为484.12 m 2 g -1。该材料的悬浮液在365 nm紫外线灯的照射下会发出强烈的蓝色荧光。Fe 3+对COFs荧光的强烈猝灭作用允许对Fe 3+阳离子进行选择性化学传感。另外，一些硝基芳族化合物也会引起强烈的荧光猝灭，这证明该材料也可用于硝基芳族化合物的定性检测。
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