Self-adjusting binding pockets enhance H2 and CH4 adsorption in a uranium-based metal-organic framework.
作者： Dominik P. Halter , Ryan A. Klein , Michael A. Boreen , Benjamin A. Trump , Craig M. Brown
DOI: 10.1039/D0SC02394A
关键词:
摘要: A new, air-stable, permanently porous uranium(iv) metal-organic framework U(bdc)2 (1, bdc2- = 1,4-benzenedicarboxylate) was synthesized and its H2 CH4 adsorption properties were investigated. Low temperature isotherms confirm strong of both gases in the at low pressures. In situ gas-dosed neutron diffraction experiments with different D2 loadings revealed a rare example cooperative contraction (ΔV -7.8%), triggered by This deformation creates two optimized binding pockets for hydrogen (Q st -8.6 kJ mol-1) per pore, agreement data. Analogous CD4 -24.8 N,N-dimethylformamide as guests that 1 adjust selective contractions are unique each adsorbent, augmenting individual host-guest interactions. Our results suggest strategic combination structural flexibility frameworks holds great potential development new adsorbents an enhanced substrate affinity.
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