Anionic templates drive conversion between a ZnII9L6 tricapped trigonal prism and ZnII6L4 pseudo-octahedra

DOI: 10.1021/jacs.3c03981

Authors: Hua-Kui Liu (University of Cambridge) , Tanya K. Ronson (University of Cambridge) , Kai Wu (University of Cambridge) , Dong Luo (University of Cambridge) , 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: July 2023
Diamond Proposal Number(s): 21497

Abstract: This work introduces the use of 8-aminoquinoline subcomponents to generate complex three-dimensional structures. Together with a tris(formylpyridine), 8-aminoquinoline condensed around ZnII templates to produce a tris(tridentate) ligand. This ligand is incorporated into either a tricapped trigonal prismatic ZnII9L6 structure or a pair of pseudo-octahedral ZnII6L4 diastereomers, with S4 and D2 symmetries. Introduction of a methyl group onto the aminoquinoline modulated the coordination sphere of ZnII, which favored the ZnII9L6 structure and disfavored the ZnII6L4 assembly. The tricapped trigonal prismatic ZnII9L6 architecture converted into a single ZnII6L4 cage diastereomer following the addition of a dianionic 4,4′-dinitrostilbene-2,2′-disulfonate guest. Four of these guests clustered tightly at the four windows of the ZnII6L4 cage, held in place through electrostatic interactions and hydrogen bonding, stabilize a single diastereomeric configuration with S4 symmetry.

Subject Areas: Chemistry


Instruments: I19-Small Molecule Single Crystal Diffraction

Added On: 16/07/2023 09:19

Documents:
jacs.3c03981.pdf

Discipline Tags:

Chemistry Inorganic Chemistry

Technical Tags:

Diffraction Single Crystal X-ray Diffraction (SXRD)