Incarceration of Iodine in a Pyrene-Based Metal-Organic Framework

A pyrene-based metal-organic framework (MOF) SION-8 captured iodine (I-2) vapor with a capacity of 460 and 250 mg g(MOF)(-1) at room temperature and 75 degrees C, respectively. Single-crystal X-ray diffraction analysis and van-der-Waals-corrected density functional theory calculations confirmed the presence of I-2 molecules within the pores of SION-8 and their interaction with the pyrene-based ligands. The I-2-pyrene interactions in the I-2-loaded SION-8 led to a 10(4)-fold increase of its electrical conductivity compared to the bare SION-8. Upon adsorption, >= 95 % of I-2 molecules were incarcerated and could not be washed out, signifying the potential of SION-8 towards the permanent capture of radioactive I-2 at room temperature.


Published in:
Chemistry-A European Journal, 25, 2, 501-506
Year:
Jan 07 2019
ISSN:
0947-6539
1521-3765
Keywords:
Laboratories:




 Record created 2019-01-31, last modified 2019-06-19

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