Narcissistic, Integrative, and Kinetic Self-Sorting within a System of Coordination Cages.
Journal of the American Chemical Society
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Rizzuto, F. J., & Nitschke, J. (2020). Narcissistic, Integrative, and Kinetic Self-Sorting within a System of Coordination Cages.. Journal of the American Chemical Society, 142 (17), 7749-7753. https://doi.org/10.1021/jacs.0c02444
Many useful principles of self-assembly have been elucidated through studies of systems where multiple components combine to create a single structure. More complex systems, where multiple product structures self-assemble in parallel from a shared set of precursors, are also of great interest, as biological systems exhibit this behavior. The greater complexity of such systems leads to an increased likelihood that discrete species will not be formed, however. Here we show how the kinetics of self-assembly govern the formation of multiple metal-organic architectures from a mixture of five building blocks, preventing the formation of a discrete structure of intermediate size. By varying ligand symmetry, denticity and orientation, we explore how five distinct polyhedra - a tetrahedron, an octahedron, a cube, a cuboctahedron and a triangular prism - assemble in concert around CoII template ions. The underlying rules dictating the organization of assemblies into specific shapes are deciphered, explaining the formation of only three discrete entities when five could form in principle.
UK Engineering and Physical Sciences Research Council (EPSRC, EP/P027067/1); Diamond Light Source for time on beamline I19 (MT-11397).
EPSRC (via University of Manchester) (EP/P027067/1)
External DOI: https://doi.org/10.1021/jacs.0c02444
This record's URL: https://www.repository.cam.ac.uk/handle/1810/304409
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