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The Crystal Structure of NNb 2 O 5 , prepared in the presence of small amounts of LiF
Author(s) -
Andersson Sten
Publication year - 1967
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.19673510114
Subject(s) - monoclinic crystal system , octahedron , crystallography , crystal structure , group (periodic table) , metal , materials science , space (punctuation) , chemistry , mathematics , metallurgy , computer science , organic chemistry , operating system
NNb 2 O 5 is monoclinic, with a = 28.51, b = 3.830, c = 17.48 Å, β = 120.80°, space group C2/m. The structure, refined by the least squares method, contains blocks of corner sharing metal‐oxygen octahedra, 4 · 4 and infinite in extension along b. These blocks are joined together at the same level as well as at different level by having octahedral edges in common. NNb 2 O 5 is a shear structure which can be represented by the structural formula: