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The preparation of an ultrastable mesoporous Cr(iii)-MOF via reductive labilization.

ABSTRACT: Kinetic labilization of the Fe(iii)-O coordination bond in a mesoporous metal-organic framework, PCN-333-Fe(iii), is realized by the reduction of Fe(iii) by Cr(ii). The Fe(ii)-Cr(ii) metathesis is thus completely achieved followed by this reductive labilization process that generates PCN-333-Cr(iii). The kinetic inertness of Cr(iii) provides PCN-333-Cr(iii) with enhanced chemical stability as well as a broader range of applications compared to those of PCN-333-Fe(iii). For instance, alkylamine incorporated PCN-333-Cr(iii) demonstrated significant carbon dioxide uptake while PCN-333-Fe(iii) lost its crystallinity after alkylamine treatment.

SUBMITTER: Lian X

PROVIDER: S-EPMC5947515 | biostudies-other | 2015 Dec

REPOSITORIES: biostudies-other

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The preparation of an ultrastable mesoporous Cr(iii)-MOF <i>via</i> reductive labilization.

Lian Xizhen X Feng Dawei D Chen Ying-Pin YP Liu Tian-Fu TF Wang Xuan X Zhou Hong-Cai HC

Chemical science 20150902 12

Kinetic labilization of the Fe(iii)-O coordination bond in a mesoporous metal-organic framework, PCN-333-Fe(iii), is realized by the reduction of Fe(iii) by Cr(ii). The Fe(ii)-Cr(ii) metathesis is thus completely achieved followed by this reductive labilization process that generates PCN-333-Cr(iii). The kinetic inertness of Cr(iii) provides PCN-333-Cr(iii) with enhanced chemical stability as well as a broader range of applications compared to those of PCN-333-Fe(iii). For instance, alkylamine i ...[more]

PMID: 29861943

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