2D Oligosilyl Metal-Organic Frameworks as Multi-state Switchable Materials

David A Burns; Eric M Press; M A Siegler; Rebekka S Klausen; V Sara Thoi

doi:10.1002/anie.201912911

2D Oligosilyl Metal-Organic Frameworks as Multi-state Switchable Materials

Angew Chem Int Ed Engl. 2020 Jan 7;59(2):763-768. doi: 10.1002/anie.201912911. Epub 2019 Nov 19.

Authors

David A Burns¹, Eric M Press¹, M A Siegler¹, Rebekka S Klausen¹, V Sara Thoi¹

Affiliation

¹ Department of Chemistry, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD, 21218, USA.

PMID: 31665559
DOI: 10.1002/anie.201912911

Abstract

We report the synthesis of a set of 2D metal-organic frameworks (MOFs) constructed with organosilicon-based linkers. These oligosilyl MOFs feature linear Si_n Me_2n (C₆ H₄ CO₂ H)₂ ligands (lin-Si_n , n=2, 4) connected by Cu paddlewheels. The stacking arrangement of the 2D sheets is dictated by van der Waals interactions and is tunable by solvent exchange, leading to reversible structural transformations between many crystalline and amorphous phases.

Keywords: 2D materials; metal-organic frameworks (MOFs); phase changes; silanes; structural interconversion.

Abstract

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