In:
Angewandte Chemie, Wiley, Vol. 131, No. 18 ( 2019-04-23), p. 6083-6088
Abstract:
Assembled from [Th 48 Ni 6 ] nanocages, the first transition‐metal (TM)‐thorium metal–organic framework (MOF, 1 ) has been synthesized and structurally characterized. 1 exhibits high solvent and acid/base stability, and resistance to 400 kGy β irradiation. Notably, 1 captures ReO 4 − (an analogue of radioactive 99 TcO 4 − , a key species in nuclear wastes) with a maximum capacity of 807 mg g −1 , falling among the largest values known to date. Furthermore, 1 can enrich methylene blue (MB) and can also serve as an effective and recyclable catalyst for CO 2 fixation with epoxides; there is no significant loss of catalytic activity after 10 cycles. Theoretical studies with nucleus‐independent chemical shifts and natural bond orbital analysis reveal that the [Th 6 O 8 ] clusters in 1 have a unique stable electronic structure with (d–p)π aromaticity, partially rationalising 1 ′s stability.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v131.18
DOI:
10.1002/ange.201901786
Language:
English
Publisher:
Wiley
Publication Date:
2019
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