Remarkable stabilization of M12L24 spherical frameworks through the cooperation of 48 Pd(II)-pyridine interactions

Sota Sato, Yoshitaka Ishido, Makoto Fujita

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    115 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)6064-6065
    Number of pages2
    JournalJournal of the American Chemical Society
    Volume131
    Issue number17
    DOIs
    Publication statusPublished - 2009 May 6

    ASJC Scopus subject areas

    • Catalysis
    • Chemistry(all)
    • Biochemistry
    • Colloid and Surface Chemistry

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