Structural Switching of a Distorted Trigonal Metal‐Organic Cage to a Tetragonal Cage and Singlet Oxygen Mediated Oxidations
Ranit Banerjee, Debsena Chakraborty, Wei‐Ting Jhang, Yi‐Tsu Chan, Partha Sarathi Mukherjee
Abstract
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 Pd II acceptor. Surprisingly, 1 exhibited a complete structural reorganization of its building units in the presence of C 70 and C 60 to form guest‐encapsulated tetragonal cages, (C 70 ) 2 @ 2 and (C 60 ) 2 @ 2 , respectively. These guest‐bound cages were found to be potential 1 O 2 generators, with the former effectively catalyzing two different varieties of 1 O 2 ‐mediated oxidation reactions.
Topics & Concepts
CageTetragonal crystal systemTrigonal crystal systemChemistryCrystallographyMetalLigand (biochemistry)AcceptorOxygenStereochemistryCrystal structureOrganic chemistryReceptorPhysicsCondensed matter physicsBiochemistryCombinatoricsMathematicsSupramolecular Chemistry and ComplexesMetal-Organic Frameworks: Synthesis and ApplicationsPorphyrin and Phthalocyanine Chemistry