Metal–Organic
Proximity in a Synthetic Pocket
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Abstract
Proximity
between a noninteractive organic substrate and a transition
metal (<i>trans</i>-MCl<sub>2</sub>(PEt<sub>3</sub>)<sub>2</sub>; M = Pd or Pt) is achieved by their co-encapsulation within
a synthetic cage, as revealed by X-ray crystallographic analysis and
NOESY experiments. Through co-encapsulation with a Pd(II) complex,
a terminal alkyne was activated within the cage to give a σ-alkynylpalladium
complex