Neodymium Diselenite Selenious Acid Dihydrate: Structure and Conformation of the Se2O5 Group

Stancheva, M.; Petrova, R.; Macícek, J.

doi:10.1107/S0108270197019318

Neodymium Diselenite Selenious Acid Dihydrate: Structure and Conformation of the Se₂O₅ Group

The title compound, Nd₂(Se₂O₅)₃.H₂SeO₃.2H₂O, is a new rare earth hydrogen selenite. Its crystal structure is built up of polar layers parallel to the ab plane. Each layer is formed by edge-sharing NdO₉ polyhedra and bridging diselenite groups. Selenious acid and water molecules occur on only one side of the layer. The other side contains flanking diselenite groups only. A complex network of hydrogen bonds holds the layers together. The configuration of Se₂O₅ is defined and compared with the diselenite moieties of related compounds.

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Neodymium Diselenite Selenious Acid Dihydrate: Structure and Conformation of the Se₂O₅ Group

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	Crystallographic Information File (CIF) Contains datablocks LRSA0204, structure
	Structure factor file (CIF format) Contains datablock nd