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Updated: Jul 31, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
Structural Switching of a Distorted Trigonal Metal-Organic Cage to a Tetragonal Cage and Singlet Oxygen Mediated
Ranit Banerjee1, Debsena Chakraborty1, Wei-Ting Jhang2
1Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.
Abstract:
Construction of metal-organic cages with unique architecture and guest binding abilities is highly desirable. Herein, we report the synthesis of a distorted trigonal cage (1) from a twisted tetratopic ligand (L) and a PdII acceptor. Surprisingly, 1 exhibited a complete structural reorganization of its building units in the presence of C70 and C60 to form guest-encapsulated tetragonal cages, (C70 )2 @2 and (C60 )2 @2, respectively. These guest-bound cages were found to be potential 1 O2 generators, with the former effectively catalyzing two different varieties of 1 O2 -mediated oxidation reactions.
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