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Nanoscale ensembles using building blocks inspired by the [FeFe]-hydrogenase active site

Comptes Rendus Chimie, ISSN: 1631-0748, Vol: 11, Issue: 8, Page: 922-925
2008
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The hydrogenase model [Fe 2 (S 2 C 3 H 6 )(CN) 2 (CO) 4 ] 2− was employed as a molecular tecton for the construction of supramolecular aggregates. IR spectroscopy indicated that cyanide bridged aggregates are formed when [Fe 2 (S 2 C 3 H 6 )(CN) 2 (CO) 4 ] 2− was treated with Lewis acids such as Zn(tetraphenylporphyrinate), [Cu(NCMe)(2,2′-bipyridine)]PF 6 and [Cu(NCMe) 4 ]PF 6. Condensation of [Fe 2 (S 2 C 3 H 6 )(CN) 2 (CO) 4 ] 2− with the tritopic Lewis acid [Cp ∗ Rh] 2+ afforded the novel expanded tetrahedron cage, {[Fe 2 (S 2 C 3 H 6 )(CN) 2 (CO) 4 ] 6 [Cp ∗ Rh] 4 } 4−. The tetrahedron cage was characterized crystallographically as the PPN salt.

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