Bottom-up construction of mesoporous supramolecular isomers based on a Pd_(3)L_(6) triangular prism as templates for shape specific aggregation of polyiodide  

作　　者：Wen-Jie Shi Xin Li Peng Li Ying-Feng Han 

机构地区：[1]Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education,College of Chemistry and Materials Science,Northwest University,Xi’an 710127,China [2]Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,Department of Chemistry,Fudan University,Shanghai 200438,China

出　　处：《Nano Research》2022年第3期2655-2660,共6页纳米研究（英文版）

基　　金：the National Natural Science Foundation for Distinguished Young Scholars of China(No.22025107);the National Youth Top-notch Talent Support Program of China,the Key Science and Technology Innovation Team of Shaanxi Province(Nos.2019TD-007 and 2019JLZ-02);the FM&EM International Joint Laboratory of Northwest University.

摘　　要：Bottom-up construction of highly complex architecture from simple components remains one of the long-standing challenges in chemistry.Herein two supramolecular isomers based on large trigonal prismatic Pd_(3)L^(1)_(6)building block are reported.Significantly,they can be controllably obtained by adjusting the solute concentration during crystal growth.Specifically,the square shape crystals,α-[Pd_(3)L^(1)_(6)](PF_(6))_(12)in the cubic system with I143 m space group,can be isolated from a high-concentration solution of Pd_(3)L^(1)_(6).Interestingly,a mesoporous cage assembled from eight Pd_(3)L^(1)_(6)units with a diameter of 24Åis observed in the crystal structure.For the low-concentration solution of Pd_(3)L^(1)_(6),the rectangular shape crystalsβ-[Pd_(3)L^(1)_(6)](PF_(6))_(12)are obtained,which crystallize in the hexagonal system with P 63/m space group,and display two-dimension packing pattern and one-dimension mesoporous channels(diameter ca.22Å)along the c axis.Moreover,the two supramolecular isomers were used as nanoporous reactors to induce the specific formation of polyiodides with different compositions and shapes as evidenced from single crystal X-ray diffraction studies.These findings provide a reference in targeting functional crystalline mesoporous supramolecular materials from a single complex building unit.

关 键 词：supramolecular isomers crystal growth self-assembly POLYIODIDE concentration effect mesoporous supramolecular material 

分 类 号：O61[理学—无机化学]