Triazine-based conjugated microporous polymers with N,N,N′,N′-tetraphenyl-1,4-phenylenediamine, 1,3,5-tris(diphenylamino)benzene and 1,3,5-tris[(3-methylphenyl)-phenylamino]benzene as the core for high iodine capture and fluorescence sensing of o-nitrophenol†,Journal of Materials Chemistry A

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Triazine-based conjugated microporous polymers with N,N,N′,N′-tetraphenyl-1,4-phenylenediamine, 1,3,5-tris(diphenylamino)benzene and 1,3,5-tris[(3-methylphenyl)-phenylamino]benzene as the core for high iodine capture and fluorescence sensing of o-nitrophenol†
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2018-01-24 00:00:00 , DOI: 10.1039/c7ta08251g
Tongmou Geng _{1,

2,

3,

4,

5} , Sainan Ye _{1,

2,

3,

4,

5} , Zongming Zhu _{1,

2,

3,

4,

5} , Weiyong Zhang _{1,

2,

3,

4,

5}

Affiliation

A series of novel triazine-based conjugated microporous polymers (TCMPs), TTPPA, TTDAB and Tm-MTDAB, were constructed via a Friedel–Crafts polymerization reaction between 2,4,6-trichloro-1,3,5-triazine (TCT) and derivatives of triphenylamine (N,N,N′,N′-tetraphenyl-1,4-phenylenediamine (TPPA), 1,3,5-tris(diphenylamino)benzene (TDAB) and 1,3,5-tris[(3-methylphenyl)-phenylamino]benzene (m-MTDAB)). TTPPA possesses a high BET surface area (>512 m² g⁻¹), a large pore volume (0.2997 cm³ g⁻¹), good stability, and displays excellent guest uptake of 4.90 g g⁻¹ in iodine vapour. Thus, TTPPA, to the best of our knowledge is the most effective polymer of all the CMPs reported to date. Surprisingly, despite poor porosity, both TTDAB and Tm-MTDAB also show excellent adsorption capacity of I₂ vapour (3.13 and 3.04 g g⁻¹). Two methods to release the adsorbed iodine were explored: slow release into ethanol and quick release upon heating (with a high degree of control). The three TCMPs exhibit outstanding performance for the reversible adsorption of iodine in gas phase as well as in solution. Spectral studies indicate that effective sorption sites, twisted propeller-like conformation, and charge-transfer interactions ensured well-defined host–guest interactions and consequently controlled the uptake of iodine. Furthermore, the three TCMPs exhibited extremely high detection sensitivity and selectivity towards o-nitrophenol.

中文翻译：

具有N，N，N '，N'-四苯基-1,4-苯二胺，1,3,5-三（二苯基氨基）苯和1,3,5-三[[3-甲基苯基）的三嗪基共轭微孔聚合物-苯基氨基]苯为核心的邻硝基苯酚进行高碘捕获和荧光传感†

通过2,4,6-三氯-1,3,5-三嗪（TCT）之间的Friedel-Crafts聚合反应，构建了一系列新型的基于三嗪的共轭微孔聚合物（TCMPs），TPTPA，TTDAB和Tm-MTDAB。及其三苯胺衍生物（N，N，N '，N'-四苯基-1,4-苯二胺（TPPA），1,3,5-三（二苯基氨基）苯（TDAB）和1,3,5-tris [[ 3-甲基苯基） -苯基氨基]苯（米-MTDAB））。TTPPA具有高的BET表面积（> 512 m ² g ^-1），大的孔体积（0.2997 cm ³ g ^-1），良好的稳定性，并显示出4.90 gg ^-1的优异客体吸收在碘蒸气中。因此，据我们所知，TTPPA是迄今为止报道的所有CMP中最有效的聚合物。出乎意料的是，尽管孔隙率很差，但TTDAB和Tm-MTDAB均表现出出色的I ₂蒸气吸附能力（3.13和3.04 gg ^-1）。探索了两种释放吸附的碘的方法：缓慢释放到乙醇中和加热后快速释放（高度控制）。三种TCMP在气相和溶液中对碘的可逆吸附均具有出色的性能。光谱研究表明，有效的吸附位，扭曲的螺旋桨状构象和电荷转移相互作用确保了明确的宿主-客体相互作用，从而控制了碘的吸收。此外，这三种TCMP表现出极高的检测灵敏度和对邻硝基苯酚的选择性。

更新日期：2018-01-24

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