Synthesis of polycarboxylate rhodium(II) metal-organic polyhedra (MOPs) and their use as building blocks for highly connected metal-organic frameworks (MOFs)

Thais Grancha, Arnau Carné-Sánchez, Farnoosh Zarekarizi, Laura Hernández López, Jorge Albalad, Akim Khobotov Bakishev, Vincent Guillerm, Ali Morsali, Judith Juanhuix, Felipe Gándara, Inhar Imaz, Daniel Maspoch Comamala

Research output: Contribution to journalArticleResearchpeer-review

46 Citations (Scopus)

Abstract

Use of preformed metal-organic polyhedra (MOPs) as supermolecular building blocks (SBBs) for the synthesis of metal-organic frameworks (MOFs) remains underexplored due to lack of robust functionalized MOPs. Herein we report the use of polycarboxylate cuboctahedral Rh-MOPs for constructing highly-connected MOFs. Cuboctahedral MOPs were functionalized with carboxylic acid groups on their 12 vertices or 24 edges through coordinative or covalent post-synthetic routes, respectively. We then used each isolated polycarboxylate Rh-MOP as 12-c cuboctahedral or 24-c rhombicuboctahedral SBBs that, upon linkage with metallic secondary building units (SBUs), afford bimetallic highly-connected MOFs. The assembly of a pre-synthesized 12-c SBB with a 4-c paddle-wheel SBU, and a 24-c SBB with a 3-c triangular Cu SBU gave rise to bimetallic MOFs having ftw (4,12)-c or rht (3,24)-c topologies, respectively.
Original languageEnglish
Pages (from-to)5729-5733
Number of pages5
JournalAngewandte Chemie - International Edition
Volume60
Issue number11
DOIs
Publication statusAccepted in press - 2021

Keywords

  • Coordination chemistry
  • Metal-organic framework
  • Metal-organic polyhedra
  • Rhodium
  • Self-assembly

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