Porous Interpenetrated Zirconium-Organic Frameworks (PIZOFs): A Chemically Versatile Family of Metal-Organic Frameworks
Porous Interpenetrated Zirconium-Organic Frameworks (PIZOFs): A Chemically Versatile Family of Metal-Organic Frameworks
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DOI：
10.1002/chem.201101015
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发表时间：
2011-08-16
影响因子：
4.3
通讯作者：
Behrens, Peter
中科院分区：
文献类型：
--
作者：
Schaate, Andreas;Roy, Pascal;Behrens, Peter
本文报道了由ZrCl_4和棒状二羧酸HO_2C [PE-P（R-1，R-2）-EP] CO_2H合成的一类新型金属有机骨架--多孔互穿锆有机骨架（PIZOFs）的合成与表征。取代基R-1、R-2变化很大（烷基、O-烷基、低聚（乙二醇）），包括合成后可寻址的取代基（氨基、炔、呋喃）。PIZOF结构对R-1和R-2的变化具有高度耐受性。这与二酸的模块化合成一起提供了孔内化学环境的容易调节。从单晶X射线衍射分析解决了PIZOF结构。PIZOF在环境条件下是稳定的。由HO 2C [PE-P（OMe，OMe）-EP] CO2 H制备的PIZOF-2用作原型以测定热稳定性和孔隙率。通过热重分析和粉末X射线衍射测定，它在空气中的稳定性高达325 ℃。PIZOF-2上的氩吸附等温线显示Brunauer-Emmett-Teller（BET）表面积为1250 m2/g（-1），总孔体积为0.68 cm 3/g（-1）。
We present the synthesis and characterization of porous interpenetrated zirconium-organic frameworks (PIZOFs), a new family of metal-organic frameworks obtained from ZrCl4 and the rodlike dicarboxylic acids HO2C[PE-P(R-1, R-2)-EP]CO2H that consist of alternating phenylene (P) and ethynylene (E) units. The substituents R-1, R-2 were broadly varied (alkyl, O-alkyl, oligo(ethylene glycol)), including postsynthetically addressable substituents (amino, alkyne, furan). The PIZOF structure is highly tolerant towards the variation of R-1 and R-2. This together with the modular synthesis of the diacids offers a facile tuning of the chemical environment within the pores. The PIZOF structure was solved from single-crystal X-ray diffraction analysis. The PIZOFs are stable under ambient conditions. PIZOF-2, the PIZOF prepared from HO2C[PE-P( OMe, OMe)-EP]CO2H, served as a prototype to determine thermal stability and porosity. It is stable up to 325 degrees C in air as determined by using thermogravimetry and powder X-ray diffraction. Argon sorption isotherms on PIZOF-2 revealed a Brunauer-Emmett-Teller (BET) surface area of 1250 m(2) g(-1) and a total pore volume of 0.68 cm(3) g(-1).