基于BODIPY的共轭多孔聚合物，可高效捕获挥发性碘<a href="#fn1" title="提供电子补充信息（ESI）：合成详细信息，EDX光谱，IR和固体NMR光谱以及XRD光谱。 CPP，TGA，XRD光谱，固态11B MAS NMR光谱和1H NMR光谱的完整合成详细信息和表征。参见DOI：10.1039 / c7ta00026j">†</a>,Journal of Materials Chemistry A

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基于BODIPY的共轭多孔聚合物，可高效捕获挥发性碘 †
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2017-03-09 00:00:00 , DOI: 10.1039/c7ta00026j
Yunlong Zhu _{1,

2,

3,

4,

5} , Ya-Jian Ji _{1,

2,

3,

4,

5} , De-Gao Wang _{1,

2,

3,

4} , Yi Zhang _{2,

3,

4,

5} , Hui Tang _{4,

6,

7,

8} , Xin-Ru Jia _{9,

10,

11,

12,

13} , Min Song _{1,

2,

3,

4} , Guipeng Yu _{2,

3,

4,

5} , Gui-Chao Kuang _{1,

2,

3,

4}

Affiliation

从核废料和医疗废物流中捕获挥发性放射性核素碘是一个重要的环境问题。在这项工作中，我们发现BODIPY核的2，6-位氢原子在室温下会与挥发性碘一起快速碘化。受我们的观察启发，制备了两种新型的基于BODIPY的共轭多孔聚合物（CPP）BDP-CPP-1和BDP-CPP-2，以及参考化合物NBDP-CPP，然后设计并通过Sonogashira交联剂进行了合成。 1,3,5-三乙炔基苯（TEB）与二溴取代的衍生物的偶联反应由于BODIPY单元与大量的三键和苯环并存，可以以高容量和高亲和力吸附碘，BDP-CPP-1和BDP-CPP-2表现出令人满意的碘吸附容量，分别为2830 mg g ^-1和2230 mg g ^-1。此外，显示出BDP-CPP-1通过涉及BODIPY核心的2，6-位氢原子的化学机理吸附挥发性碘。令人惊讶地，由于Sonogashira偶联反应期间BODIPY单元的交联，BODIPY单元上用于化学碘化反应的活性位点被大部分消除。初步结果表明，碘的摄取能力依次为BDP-CPP-1 > BDP-CPP-2 > NBDP-CPP不仅取决于表面积，还取决于BODIPY单位。BDP-CPP具有高的热稳定性，分解温度约为300°C。此外，BDP-CPPs具有出色的可回收性。由于高度π-共轭的多孔结构以及对碘分子和碘化位点的高亲和力，一些基于BODIPY的CPP可能提供吸附其他挥发性化合物的可行途径。

"点击查看英文标题和摘要"

BODIPY-based conjugated porous polymers for highly efficient volatile iodine capture†

Capturing volatile radionuclide iodine from nuclear and medical waste streams is an important environmental issue. In this work, we found that the 2,6-position hydrogen atoms of a BODIPY core undergo fast iodination with volatile iodine at room temperature. Inspired by our observation, two novel BODIPY-based conjugated porous polymers (CPPs) BDP-CPP-1 and BDP-CPP-2, and the reference compound NBDP-CPP, were prepared, which were designed and then synthesized via the Sonogashira cross-coupling reaction of 1,3,5-triethynyl-benzene (TEB) and dibromo-substituted derivatives. With the coexistence of the BODIPY units and plenty of triple bonds and phenyl rings that could adsorb iodine with high capacity and affinity, compounds BDP-CPP-1 and BDP-CPP-2 exhibited satisfactory iodine adsorption capacities of 2830 mg g⁻¹ and 2230 mg g⁻¹, respectively. Moreover, BDP-CPP-1 was shown to adsorb volatile iodine through a chemical mechanism involving the 2,6-position hydrogen atoms of the BODIPY core. Surprisingly, the active sites on the BODIPY units for a chemical iodination reaction were mostly eliminated as a result of the crosslinking of BODIPY units during the Sonogashira coupling reaction. The preliminary results demonstrated that the iodine uptake abilities, which are in the order of BDP-CPP-1 > BDP-CPP-2 > NBDP-CPP, are not only dependent on the surface area, but also on the BODIPY units. The BDP-CPPs show high thermal stability with a decomposition temperature of about 300 °C. In addition, the BDP-CPPs demonstrated remarkable recyclability. Due to the highly π-conjugated porous structure along with the high affinity for iodine molecules and iodination sites, some BODIPY-based CPPs may provide a feasible pathway to adsorb other volatile compounds.

更新日期：2017-03-09

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