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An S 10-symmetric 5-fold interlocked [2]catenane

DOI: 10.1021/jacs.0c03349 DOI Help

Authors: Tanya K. Ronson (University of Cambridge) , Yujia Wang (Tsinghua University) , Kim Baldridge (Tianjin University) , Jay S. Siegel (Tianjin University) , Jonathan R. Nitschke (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of The American Chemical Society

State: Published (Approved)
Published: May 2020
Diamond Proposal Number(s): 15768

Abstract: The reaction of sym-pentakis(4-aminothiophenyl)corannulene with 2-formyl-6-methyl-pyridine and CuI or 2-formyl-1,10-phenanthroline and MII (Co or Zn) yields an S10-symmetric five-fold interlocked [2]catenane of two interpenetrating [CuI5L2]5+ cages or D5-symmetric [MII5L2]10+ cages, respectively. The new structures were characterized by X-ray crystallography, NMR spectroscopy and mass spectrometry. Density functional theory computations point to dispersive energies on par with traditional covalent bond energies. Subcomponent exchange reactions favored formation of the [CoII5L2]10+ cage over the [CuI10L4]10+ catenane. The single cage and catenane each co-crystalized with a guest corannulene to form a bowl-in-bowl sub-structure.

Subject Areas: Chemistry

Instruments: I19-Small Molecule Single Crystal Diffraction