A polymeric solvent-free variant of a hydridomagnesium inverse crown

Abstract

A solvent-free agostically propagated polymeric variant of a previously reported hydride-containing inverse crown molecule has been prepared, namely tetra-μ2-diisopropylamidodi-μ2-hydrido- dimagnesium(II)disodium(I), [Mg2Na2H2(C 6-H14N)4]. The asymmetric unit contains two crystallographically independent centrosymmetric molecules, each existing as a cationic eight-membered ring, with alternating metal and N atoms, which acts as a host towards two hydride anions. The metal amide rings are linked via Na⋯C agostic interactions to produce one-dimensional polymeric chains propagating along the crystallographic b direction. © 2006 International Union of Crystallography.