The self-assembly of a cuboctahedral M12L24 complex is traced by time-dependent NMR spectroscopy and mass spectrometry. The metastable intermediate structures that exist during the self-assembly process are not a chaotic mixture of numerous species, but instead are geometrically restricted. Short-lived M8L16 (D4d) and relatively long-lived M9L18 (D3h) are fully characterized as major intermediates. Employing a ligand with a smaller bend angle (112°) allows these two species to be kinetically trapped and more clearly observed by NMR spectroscopy. X-ray crystallography shows that M9L18 has the framework topology predicted by geometric discussion.
CITATION STYLE
Fujita, D., Yokoyama, H., Ueda, Y., Sato, S., & Fujita, M. (2015). Geometrically restricted intermediates in the self-assembly of an M12L24 cuboctahedral complex. Angewandte Chemie - International Edition, 54(1), 155–158. https://doi.org/10.1002/anie.201409216
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