NbO2 Wyckoff R W G Crystal Structures 1 (1963) 239-444 Second edition. Interscience Publishers, New York, New York _database_code_amcsd 0011772 13.71 13.71 5.985 90 90 90 I4_1/a atom x y z Nb1 .118 .125 .483 Nb2 .133 .125 .016 O1 .986 .130 .001 O2 .971 .125 .501 O3 .280 .126 .993 O4 .266 .118 .503