ic0c01646_si_001.pdf (1.33 MB)
Single-Crystal Synthesis and Diverse Topologies of Hexanuclear CeIV-Based Metal–Organic Frameworks
journal contribution
posted on 2020-08-06, 22:00 authored by Yu-Feng Zhang, Qian Wang, Dong-Xu Xue, Junfeng BaiCeIV6-based metal–organic frameworks (MOFs)
have gained increasing attention recently because of their diverse
potential applications and similarity to prominent Zr-MOFs, e.g.,
the UiO-66 series. However, the reported CeIV6-based MOFs were all structurally determined by means of the powder
X-ray diffraction technique, indicative of less practice and convenience.
Herein, four single-crystalline CeIV6-based
MOFs were successfully isolated and characterized by single-crystal
X-ray diffraction, disclosing two series of topologically distinct
isoreticular nets accompanied by nine-coordinated central CeIV ions, i.e., 8-connected hex and 12-connected fcu, respectively, in contrast to the previously reported
sole fcu topology based on the combination of linear
dicarboxylate ligands and a CeIV6 cluster associated
with eight-coordinated central CeIV ions according to the
UiO-66 structural model. Moreover, all four single-crystalline compounds
exhibit permanent microporous porosities and a certain amount of gas
uptake toward CO2, CH4, and H2.
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Ce IV 6single-crystal X-ray diffractionH 2single-crystalline Ce IV 6gas uptakeCO 2Ce IV ionsCH 4UiO -66single-crystalline compounds exhibitCe IV 6 clustermicroporous porositiespowder X-ray diffraction techniqueUiO -66 seriesSingle-Crystal SynthesisDiverse Topologiesdicarboxylate ligandsfcu topologyHexanuclear Ce IVisoreticular netsMOF
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