AB_cP6_221_c_d & a --params=4.2101 & Pm(-3)m O_h^1 #221 (cd) & cP6 & & NbO & & A. L. Bowman, T. C. Wallace, J. L. Yarnell and R. G. Wenzel, Acta Cryst. 21, 843 (1966) 1.0000000000000000 4.21010000000000 0.00000000000000 0.00000000000000 0.00000000000000 4.21010000000000 0.00000000000000 0.00000000000000 0.00000000000000 4.21010000000000 Nb O 3 3 Direct 0.00000000000000 0.50000000000000 0.50000000000000 Nb (3c) 0.50000000000000 0.00000000000000 0.50000000000000 Nb (3c) 0.50000000000000 0.50000000000000 0.00000000000000 Nb (3c) 0.00000000000000 0.00000000000000 0.50000000000000 O (3d) 0.00000000000000 0.50000000000000 0.00000000000000 O (3d) 0.50000000000000 0.00000000000000 0.00000000000000 O (3d)