A new (NH)WO compound has been obtained by mixing WO and aqueous hydrazine solution at room temperature for 24 h. The reaction is catalyzed by the presence of lithium. X-ray, synchrotron and neutron diffraction techniques have shown that the material crystallizes in trigonal space group P321 (No. 154). Chains of distorted WO tetrahedra extend along the a axis of the unit cell, linked by a corner-sharing oxygen atom: the NH are in the voids between them. The thermal characterization shows that this new compound is stable up to 220°C, greatly beyond the boiling point of NH (114°C); thus making it a promising candidate for catalysis or trapping applications.
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