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Synthesis and Crystal Structure of the First Sc‐Nb‐O‐N Phases
Author(s) -
Orthmann Steven,
Lerch Martin
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700129
Subject(s) - scandium , niobium , rutile , crystal structure , nitride , niobium oxide , inorganic chemistry , amorphous solid , ammonia , group (periodic table) , crystallography , materials science , fluorite , oxide , niobium nitride , phase (matter) , chemistry , metallurgy , nanotechnology , organic chemistry , layer (electronics)
Synthesis of phase‐pure materials in the system Sc‐Nb‐O‐N is challenging. In this contribution we report on the preparation of the first scandium niobium oxide nitrides via reaction of water‐saturated gaseous ammonia or an ammonia‐oxygen mixture with amorphous scandium niobium oxides. Two new phases were obtained: rutile‐type ScNb 4 O 7 N 3 , which crystallizes in space group P 4 2 / mnm , and an anion‐deficient fluorite‐type Sc 2 Nb(O,N,⬜) 6 phase crystallizing in space group Fm 3 m .