A Microporous Metal-Organic Framework Incorporating Both Primary and Secondary Building Units for Splitting Alkane Isomers

Authors：Yu, Liang; Ullah, Saif; Zhou, Kang; Xia, Qibin^*; Wang, Hao^*; Tu, Shi; Huang, Jiajin; Xia, Hai-Lun; Liu, Xiao-Yuan; Thonhauser, Timo; Li, Jing^*

Source：Journal of the American Chemical Society, 2022, 144(9): 3766-3770.

DOI：10.1021/jacs.1c12068

• CARBON-DIOXIDE
• DESIGN
• SEPARATION
• SIZE
• MOFS

We demonstrate the assembly of a mononuclear metal center, a hexanuclear cluster, and a V-shaped, trapezoidal tetracarboxylate linker into a microporous metal-organic framework featuring an unprecedented 3-nodal (4,4,8)-c lyu topology. The compound, HIAM-302, represents the first example that incorporates both a primary building unit and a hexanuclear secondary building unit in one structure, which should be attributed to the desymmetrized geometry of the organic linker. HIAM-302 possesses optimal pore dimensions and can separate monobranched and dibranched alkanes through selective molecular sieving, which is of significant value in the petrochemical industry.