The Hydride Anion in an Extended Transition Metal Oxide Array: LaSrCoO3H0.7

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Science  08 Mar 2002:
Vol. 295, Issue 5561, pp. 1882-1884
DOI: 10.1126/science.1068321

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We present the synthesis and structural characterization of a transition metal oxide hydride, LaSrCoO3H0.7, which adopts an unprecedented structure in which oxide chains are bridged by hydride anions to form a two-dimensional extended network. The metal centers are strongly coupled by their bonding with both oxide and hydride ligands to produce magnetic ordering at temperatures up to at least 350 kelvin. The synthetic route is sufficiently general to allow the prediction of a new class of transition metal–containing electronic and magnetic materials.

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