Abstract
Kinetic studies on the ligand exchange of self-assembled M 12L24 spherical complexes demonstrate that the multicomponent self-assembly roughly undergoes three stages. Initially, (i) there are very rapid equilibrations (ms-1) among the many components; (ii) as more stable structures are formed, the system equilibrates quickly (s-1 to min-1) among the completed and uncompleted self-assemblies; misassembled structures are presumably corrected at this stage; and finally (iii) very slow equilibration (hours to days) at the final stage after the self-assembly completes, producing the kinetic stability of the whole. The half-lives of the ligand exchange processes in the M12L 24 complexes are much longer than those for comparable monodentate Pd(II)-pyridine complexes by a factor of ∼105, suggesting that, once formed, the 36-component molecular spheres behave like covalent componds.
Original language | English |
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Pages (from-to) | 6064-6065 |
Number of pages | 2 |
Journal | Journal of the American Chemical Society |
Volume | 131 |
Issue number | 17 |
DOIs | |
Publication status | Published - 2009 May 6 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry