title: Subcomponent self-assembly and guest-binding properties of face-capped Fe4L4(8+) capsules.
abstract: A general method for preparing Fe(4)L(4) face-capped tetrahedral cages through subcomponent self-assembly was developed and has been demonstrated using four different C(3)-symmetric triamines, 2-formylpyridine, and iron(II). Three of the triamines were shown also to form Fe(2)L(3) helicates when the appropriate stoichiometry of subcomponents was used. Two of the cages were observed to have nearly identical Fe-Fe distances in the solid state, which enabled their ligands to be coincorporated into a collection of mixed cages. Only one of the cages combined a sufficiently large cavity with the sufficiently small pores required for guest binding, taking up a wide variety of guest species in size- and shape-selective fashion.
authors: Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
authors: Rana A
authors: RA
authors: Bilbeisi
authors: Jack K
authors: JK
authors: Clegg
authors: Noémie
authors: N
authors: Elgrishi
authors: Xavier
authors: X
authors: de Hatten
authors: Marc
authors: M
authors: Devillard
authors: Boris
authors: B
authors: Breiner
authors: Prasenjit
authors: P
authors: Mal
authors: Jonathan R
authors: JR
authors: Nitschke