A low symmetry cluster meets a low symmetry ligand to sharply boost MOF thermal stability

Yajun Gao; Mingxing Zhang; Cong Chen; Yong Zhang; Yuming Gu; Qian Wang; Wenwei Zhang; Yi Pan; Jing Ma; Junfeng Bai

doi:10.1039/d0cc04543h

A low symmetry cluster meets a low symmetry ligand to sharply boost MOF thermal stability

Chem Commun (Camb). 2020 Oct 14;56(80):11985-11988. doi: 10.1039/d0cc04543h. Epub 2020 Sep 8.

Authors

Yajun Gao¹, Mingxing Zhang, Cong Chen, Yong Zhang, Yuming Gu, Qian Wang, Wenwei Zhang, Yi Pan, Jing Ma, Junfeng Bai

Affiliation

¹ State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China. bjunfeng@nju.edu.cn.

PMID: 32896849
DOI: 10.1039/d0cc04543h

Abstract

A new approach in which a low symmetry cluster meets a low symmetry ligand to sharply boost the thermal stability of a MOF via additional inter-linker interactions is presented for the first time, leading to the successful synthesis of a novel binuclear Co-based MOF, {[Co₂(L₁)₂DMF]·1.5DMF·0.75MeOH·1.5H₂O}_∞ (H₂L₁ = 5-(pyridin-3-yl) isophthalic acid, NJU-Bai62: NJU-Bai for Nanjing University Bai group), with exceptional thermal stability of up to 450 °C. This work may open up a new avenue for constructing robust MOFs from abundant, unstable, and low symmetry binuclear clusters, which have usually been ignored by most MOF chemists.