Abstract
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.
Original language | English |
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Pages (from-to) | 155-158 |
Number of pages | 4 |
Journal | Angewandte Chemie - International Edition |
Volume | 54 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2015 Jan 2 |
Keywords
- Geometrical restriction
- Metastable intermediates
- Palladium
- Self-assembly
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)