TY - JOUR
T1 - Effective mercury sorption by thiol-laced metal-organic frameworks
T2 - In strong acid and the vapor phase
AU - Yee, Ka-Kit
AU - Reimer, Nele
AU - Liu, Jie
AU - Cheng, Sum-Yin
AU - Yiu, Shek-Man
AU - Weber, Jens
AU - Stock, Norbert
AU - Xu, Zhengtao
PY - 2013/5/29
Y1 - 2013/5/29
N2 - Free-standing, accessible thiol (-SH) functions have been installed in robust, porous coordination networks to provide wide-ranging reactivities and properties in the solid state. The frameworks were assembled by reacting ZrCl4 or AlCl3 with 2,5-dimercapto-1,4-benzenedicarboxylic acid (H2DMBD), which features the hard carboxyl and soft thiol functions. The resultant Zr-DMBD and Al-DMBD frameworks exhibit the UiO-66 and CAU-1 topologies, respectively, with the carboxyl bonded to the hard Zr(IV) or Al(III) center and the thiol groups decorating the pores. The thiol-laced Zr-DMBD crystals lower the Hg(II) concentration in water below 0.01 ppm and effectively take up Hg from the vapor phase. The Zr-DMBD solid also features a nearly white photoluminescence that is distinctly quenched after Hg uptake. The carboxyl/thiol combination thus illustrates the wider applicability of the hard-and-soft strategy for functional frameworks. © 2013 American Chemical Society.
AB - Free-standing, accessible thiol (-SH) functions have been installed in robust, porous coordination networks to provide wide-ranging reactivities and properties in the solid state. The frameworks were assembled by reacting ZrCl4 or AlCl3 with 2,5-dimercapto-1,4-benzenedicarboxylic acid (H2DMBD), which features the hard carboxyl and soft thiol functions. The resultant Zr-DMBD and Al-DMBD frameworks exhibit the UiO-66 and CAU-1 topologies, respectively, with the carboxyl bonded to the hard Zr(IV) or Al(III) center and the thiol groups decorating the pores. The thiol-laced Zr-DMBD crystals lower the Hg(II) concentration in water below 0.01 ppm and effectively take up Hg from the vapor phase. The Zr-DMBD solid also features a nearly white photoluminescence that is distinctly quenched after Hg uptake. The carboxyl/thiol combination thus illustrates the wider applicability of the hard-and-soft strategy for functional frameworks. © 2013 American Chemical Society.
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U2 - 10.1021/ja400212k
DO - 10.1021/ja400212k
M3 - RGC 21 - Publication in refereed journal
SN - 0002-7863
VL - 135
SP - 7795
EP - 7798
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 21
ER -