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Isostructural potassium and sodium di-nitrogen functionalized amides: Syntheses and crystal structures of [Ph(2-Pyr)NK·TMEDA]2 and [Me(2-Pyr)NNa·TMEDA]2

Andrews, Philip C. and Baker, Daniel R. and Mulvey, Robert and Clegg, William and O'Neil, Paul A. (1991) Isostructural potassium and sodium di-nitrogen functionalized amides: Syntheses and crystal structures of [Ph(2-Pyr)NK·TMEDA]2 and [Me(2-Pyr)NNa·TMEDA]2. Polyhedron, 10 (15). pp. 1839-1841. ISSN 0277-5387

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Abstract

Two alkali metal amide complexes, [Ph(2-Pyr)NK.TMEDA]2 and [Me(2-Pyr)NNa.TMEDA]2, synthesized from 1:1:1 mixtures of PhM (M = K or Na), the appropriate secondary amine and the Lewis base TMEDA, have been structurally identified by X-ray diffraction and shown to adopt analogous dimeric structures based on planar (N-M)2 rings with additional "internal"- and "external"-donor N.M links that render the metal cations six-coordinate.