A unified topology approach to dot-, rod-, and sheet-MOFs
Journal article, 2021

Metal-organic frameworks made from multi-metal-ion units in the shape of clusters and rods (termed dot-MOFs and rod-MOFs) are well known. Here, we introduce MOFs with multi-metallic units in the form of sheets-sheet-MOFs. We show exemplars of all three types of units based on structures containing Y3+, Ce3+, or Gd3+ linked by benzene1,2,4,5-tetracarboxylate to give crystals of a dot-MOF in H2NMe2[Y(b-tec)(H2O)] CTH-14, a sheet-MOF in [Ce-3(btec)(Hbtec)(OAc)(HCO2)] CTH-15, and a rod-MOF in 4,4'-azopyridinium[Gd-2(btec)(2)] CTH-16. Cyclic voltammetry shows that CTH-15 stabilizes Ce(IV). Given the fact that sheet-MOFs represent an intellectual advance in the evolution of MOFs, a unified approach is proposed for the topological classification of dot-, rod-, and sheet-MOFs. It is suggested that the stability ofMOFs follow in the trend dot < rod < sheet. For CTH-14-16, the sheet- and the rod-MOF have higher thermal stability. We suggest sheet-MOFs as an additional strategy for making robust MOFs.

Author

Francoise Mystere Amombo Noa

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Maria Abrahamsson

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Elisabet Ahlberg

University of Gothenburg

Ocean Cheung

Uppsala University

Christian R. Gob

Rigaku Europe SE

Christine J. McKenzie

University of Southern Denmark

Lars Öhrström

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Chem

2451-9294 (ISSN)

Vol. 7 9 2491-2512

Metallorganiska ramverksföreningar: syntes, topologi, katalys och magnetism

Swedish Research Council (VR) (2017-04725), 2018-01-01 -- 2021-12-31.

Subject Categories

Inorganic Chemistry

Materials Chemistry

Structural Biology

DOI

10.1016/j.chempr.2021.07.006

More information

Latest update

9/23/2021