The organometallic host-guest chemistry of porous covalent organic frameworks is explored by vapour phase infiltration of volatile organometallic precursors; namely, [Fe(η(5)-C(5)H(5))(2)], [Co(η(5)-C(5)H(5))(2)], and [Ru(cod)(cot)]. The unique arrangement of ferrocene molecules inside COF-102 is driven by π-π (host-guest) interactions and replicates the framework symmetry.
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