The unique spherical nanocapsules/Keplerates of the type {{(Mo)Mo5}12M'30} (M' = {Mo2}, VO(2+), Cr(3+), Fe(3+)) (more generally: (pentagon)12(spacer/ligand)30) allow-due to their exceptional structural features and easy variations/derivatizations-versatile chemistry and applications as well as the option to study new phenomena of interdisciplinary interest.[1a] In this poster we specially refer on the interesting neutral/charged species of [{(Mo)Mo5O21(L)6}12{Fe(H2O)L}30] (L = H2O/CH3COO-/Mo2O8/9) compound 1a/type[1b] not only because of their tremendous unusual magnetic properties which exhibit spherical networks based on corner-shared M'3 triangles causing geometrical frustration analogous to that of the planar Kagomé lattices but also for their behavior as unique weak polyprotic acids owing to the external water ligands attached to the M' metal centers. In the second part we refer to the fact that the capsule [{(Mo)Mo5O21(H2O)6}12{Mo2O4(CO3)}30](72-) compound 2a[2] containing 30 carbonate ligands is a potential starting reagent for the synthesis of novel capsules with weakly coordination ligands such as fluoride ions [{(Mo)Mo5O21(H2O)5F}12 {Mo2O4(F)(H2O)}30](69-) compound 3a.[3] Figure. Ball-and-stick representation for the structures of the nano-anions of compound 1a, 2a and 3a.

Multilayer fullerenes (carbon nano-onions, CNOs) represent a largely unexplored carbon allotrope due to their inherent insolubility. Expectations are that the properties of these nano-onions will be unique and potentially useful, as has been the case with the fullerenes and carbon nanotubes (CNTs). CNOs show diminished chemical reactivity; however, the established thermal diradical formation and reactivity of bis-o-diynyl arene (BODA) monomers afforded direct functionalization, solution processing, and de-functionalization of CNOs; and the first example of a radical addition of a conjugated polymer to CNOs. The functionalized and soluble CNOs were characterized by TEM, GPC, TGA, Raman spectroscopy, and XPS. A CNO defunctionalization method using oxidative TGA is also presented.

A new semi-fluorinated perfluorocyclobutyl (PFCB) aryl ether containing polymer was prepared in high yield via the condensation of a commercial 4,4 1 -((1,2,3,3,4,4-hexafluorocyclobutane-1,2-diyl)bis(oxy))bisphenol (bisphenol T) and bis(trifluorovinyloxyether)biphenyl producing transparent, flexible films. The polymer system was structurally characterized using 1 H and 19 F NMR and exhibited a high degree of thermal stability as determined by thermogravimetric analysis capacity. The sulfonated analogue showed the highest degree of sulfonation at 27% from ion-exchange chromatography, producing a conductivity of 0.011 S cm 21 at 100% relative humidity.

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The expected Wolff rearrangement of the ketocarbene intermediate 2, formed upon rhodium(II)-catalyzed elimination of nitrogen from diazoketone 1, does not occur. Instead, by incorporation of the neighboring diazene group the surprisingly stable, crystalline azomethine imines 3 and 4 are formed as cyclic valence isomers of 2. Compound 4, which contains a five-membered ring, is the first representative of a carba-sydnone and can also be obtained by acid-catalyzed isomerization of 3 at 50-70°C.