Ln2 Ti2O7 (Ln = La, Nd, Sm, Gd): a novel series of defective Ruddlesden-Popper phases formed by topotactic dehydration of HLnTiO4+

Thangadurai, V. ; Gopalakrishnan, J. ; Subbanna, G. N. (1998) Ln2 Ti2O7 (Ln = La, Nd, Sm, Gd): a novel series of defective Ruddlesden-Popper phases formed by topotactic dehydration of HLnTiO4+ Chemical Communications (12). pp. 1299-1300. ISSN 1359-7345

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Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/1998...

Related URL: http://dx.doi.org/10.1039/a802644k

Abstract

Topotactic dehydration of HLnTiO4 (Ln = La, Nd, Sm or Gd) around 480-500 ° C yields a new series of metastable layered perovskite oxides, Ln2 Ti2O7, that possess a defective Sr3Ti2O7 structure, where the cubooctahedral sites within the double-perovskite layers are most likely vacant.

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