Versatile, selective, and switchable coordination modes of pincer click ligands

Elaine M. Schuster, Mark Botoshansky, Mark Gandelman

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


Ligands possessing multiple complexation modes are an interesting class of compounds. Here we report that our recently established pincer click ligands (PCLs), prepared by copper-catalyzed cycloaddition of azides to alkynes, exhibit unique versatility in coordination ability. Nitrogens of the triazole-based backbone can actively participate in metal ligation rather than being a spectator backbone. Under selection of the reaction conditions these ligands can selectively acquire either bi- or tridentate coordination upon reaction with a metal precursor. Both palladium and platinum complexes with different coordination modes were prepared and fully characterized including X-ray analysis. Moreover, the "rollover switch" of kinetically preferred bidentate complexes to the thermodynamically controlled tridentate species is demonstrated.

Original languageEnglish
Pages (from-to)7001-7005
Number of pages5
Issue number24
StatePublished - 28 Dec 2009
Externally publishedYes


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