Department of Chemistry and Institute for Catalysis in Energy Processes, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
Inorg Chem. 2011 Apr 18;50(8):3174-6. doi: 10.1021/ic101952y. Epub 2011 Mar 7.
From a combination of chiral Mn(salen) struts and the tetratopic ligand tetrakis(4-carboxyphenyl)benzene, a large-pore, noncatenated metal-organic framework (MOF) material, MnSO-MOF, has been synthesized. Following solvent exchange with hydrophobic CHCl(3), treatment of MnSO-MOF with aqueous H(2)O(2) allowed for the selective demetalation of Mn(salen) struts at and near the surface of the crystals. The resulting crystals displayed greatly enhanced size-selective catalysis compared to the as-synthesized material. Handling of the mechanically fragile MnSO-MOF crystals was greatly facilitated by activation with supercritical CO(2).
由手性 Mn(salen) 支柱和四齿配体四(4-羧基苯基)苯组合而成，一种大孔径、非笼状的金属有机骨架（MOF）材料 MnSO-MOF 已被合成。用疏水性 CHCl(3) 进行溶剂交换后，用含水 H(2)O(2)处理 MnSO-MOF 可使 Mn(salen) 支柱在晶体表面和附近选择性脱金属。与合成材料相比，所得晶体显示出大大增强的尺寸选择性催化。通过超临界 CO(2)激活，大大方便了对机械脆弱的 MnSO-MOF 晶体的处理。
