data_image0 _chemical_formula_structural Nb4Se18 _chemical_formula_sum "Nb4 Se18" _cell_length_a 8.3360950907107 _cell_length_b 8.5255119496737 _cell_length_c 8.606327401386146 _cell_angle_alpha 99.08608973234544 _cell_angle_beta 94.94184771302466 _cell_angle_gamma 92.97478851204154 _space_group_name_H-M_alt "P 1" _space_group_IT_number 1 loop_ _space_group_symop_operation_xyz 'x, y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_symmetry_multiplicity _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Nb Nb1 1.0 0.08945194139999997 0.09845667589999996 0.1380053928 1.0000 Nb Nb2 1.0 0.4150980459 0.36191606460000003 0.39780281949999996 1.0000 Nb Nb3 1.0 0.5849011237 0.638083944 0.6021972911999998 1.0000 Nb Nb4 1.0 0.9105483251 0.9015431584999997 0.8619935466 1.0000 Se Se1 1.0 0.8148778113999999 0.17905401809999996 0.002623958499999999 1.0000 Se Se2 1.0 0.3905515450999999 0.21073146480000007 0.08915177489999998 1.0000 Se Se3 1.0 0.9612271692000001 0.808326092 0.14384570009999997 1.0000 Se Se4 1.0 0.5483389895999999 0.09669266489999995 0.285603352 1.0000 Se Se5 1.0 0.09957500899999999 0.40194462179999985 0.30629115930000006 1.0000 Se Se6 1.0 0.6666363564000001 0.5226432776 0.3138994077 1.0000 Se Se7 1.0 0.4283995707 0.6559689332999997 0.3254408739 1.0000 Se Se8 1.0 0.2657532643 0.07611423209999997 0.41178311459999994 1.0000 Se Se9 1.0 0.9732481891 0.1874601214 0.41320334509999995 1.0000 Se Se10 1.0 0.02675218169999993 0.8125399017999999 0.5867967762999999 1.0000 Se Se11 1.0 0.7342469523 0.9238844268999998 0.5882158193999999 1.0000 Se Se12 1.0 0.5716006956 0.34403090099999983 0.6745580654 1.0000 Se Se13 1.0 0.33336411870000004 0.47735693449999994 0.6861018957000001 1.0000 Se Se14 1.0 0.9004241108000001 0.5980542116000002 0.6937089461 1.0000 Se Se15 1.0 0.45166007559999993 0.9033071548999999 0.7143955765999999 1.0000 Se Se16 1.0 0.0387730973 0.1916737424 0.8561532392999998 1.0000 Se Se17 1.0 0.6094475202 0.7892683549999998 0.9108471537999999 1.0000 Se Se18 1.0 0.18512376060000002 0.8209460196999998 0.9973761736 1.0000