Superacidity in Sulfated Metal–Organic Framework-808
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https://figshare.com/articles/dataset/Superacidity_in_Sulfated_Metal_Organic_Framework_808/2254348
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资源简介：
Superacids,
defined as acids with a Hammett acidity function H0 ≤ −12, are useful materials,
but a need exists for new, designable solid state systems. Here, we
report superacidity in a sulfated metal–organic framework (MOF)
obtained by treating the microcrystalline form of MOF-808 [MOF-808-P:
Zr6O5(OH)3(BTC)2(HCOO)5(H2O)2, BTC = 1,3,5-benzenetricarboxylate]
with aqueous sulfuric acid to generate its sulfated analogue, MOF-808-2.5SO4 [Zr6O5(OH)3(BTC)2(SO4)2.5(H2O)2.5]. This material has a Hammett acidity function H0 ≤ −14.5 and is thus identified as a superacid,
providing the first evidence for superacidity in MOFs. The superacidity
is attributed to the presence of zirconium-bound sulfate groups structurally
characterized using single-crystal X-ray diffraction analysis.
创建时间：
2014-09-17
