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High‐Pressure Synthesis and Crystal Structure of Neodymium( III ) Oxide Peroxide, Nd 2 O 2 (O 2 )
Author(s) -
Range KlausJürgen,
Stadler Maximilian,
Rau Franz,
Klement Ulrich
Publication year - 1987
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198711741
Subject(s) - neodymium , peroxide , oxygen , chemistry , crystal structure , oxide , oxygen pressure , inorganic chemistry , crystallography , laser , organic chemistry , optics , physics
The most oxygen‐rich compound so far reported for the system neodymiumoxygen was obtained by high‐pressure synthesis from Nd 2 O 3 /KO 2 mixtures. Respite the composition NDO 2 , the X‐ray crystal structure analysis revealed at a neodymium( III ) oxide peroxide and not a neodymium(iv) dioxide was present. Nd 2 O 2 (O 2 ) is remarkably stable at normal pressure and only undergoes transformation to Nd 2 O 3 at 420°C with loss of oxygen.