issue contents
May 2021 issue
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Cover illustration: (Cobaltoceniumylamido)pyridinium hexafluoridophosphate [Co(C5H5)(C10H9N2)]PF6, was synthesized from deprotonated 1-aminopyridinium iodide, followed by microwave-assisted nucleophilic aromatic substitution of iodo-cobaltocenium iodide. After anion exchange with potassium hexafluoridophosphate, it crystallized as orange prisms in the space group Pc. This very stable pyridine nitrene adduct is the first example of a cobaltocenium derivative, formally containing a nitrene nitrogen species. See: Menia, Höfer, Wurst & Bildstein [IUCrData (2021). 6, x210460].
metal-organic compounds
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organic compounds
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