Post-assembly Functionalization
of Organoplatinum(II)
Metallacycles via Copper-free Click Chemistry
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Abstract
We describe the use of a strain-promoted copper-free
click reaction
in the post-self-assembly functionalization of organoplatinum(II)
metallacycles. The coordination-driven self-assembly of a 120°
cyclooctyne-tethered dipyridyl donor with 60° and 120° di-Pt(II)
acceptors forms molecular rhomboids and hexagons bearing cyclooctynes.
These species undergo post-self-assembly [3+2] Huisgen cycloaddition
with a variety of azides to give functionalized ensembles under mild
conditions
