Quest for Zeolite‐like Supramolecular Assemblies: Self‐Assembly of Metal–Organic Squares via Directed Hydrogen Bonding. (26th August 2020)

• Record Type: Journal Article
• Authors: Li, Jiantang; Kan, Liang; Li, Jiyang; Liu, Yunling; Eddaoudi, Mohamed
• Is Part Of: Angewandte Chemie. Volume 132:Number 44(2020)
• Page Start: 19827
• Page End: 19830
• Publication Date: 2020-08-26
• Subjects: hydrogen bonding -- MER topology -- solvent effects -- supramolecular assemblies -- ZMOFs; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202006978
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Our conceived approach based on the directed assembly of functional metal–organic squares (MOSs), 4‐membered ring (4MR) building units, permitted the construction of two novel zeolite‐like supramolecular assemblies (ZSAs), namely [Co4 (ImDC)4 (En)4 ]⋅9 H2 O⋅1.5 DMF (ZSA‐10 ) and [Co4 (ImDC)4 (En)4 ]⋅7 H2 O (ZSA‐11 ) (H3 ImDC=4, 5‐imidazoledicarboxylic acid, En=ethylenediamine, DMF=N, N‐dimethylformamide). The elected MOSs encompass both trans ‐ and cis ‐coordinated nodes, offering complementary peripheral functional groups for their directed assembly into zeolite‐like topologies via supramolecular hydrogen bonding interactions. Distinctly, ZSA‐10 possesses the underling MER zeolite topology and is the only pure MER framework material (without any supporting templates) exhibiting permanent porosity up to now. ZSA‐11 has the underlying ABW topology together with one type of narrow channel. Abstract : A new type of MOS was successfully synthesized and employed for the construction of two new ZSA materials with MER and ABW underlying topologies. The introduction of this distinct MOS attests to the prospect of constructing new ZSA materials, and at the same time magnifies the plausible use of 4MR SBUs for the construction of ZMOFs.