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[交流]
【求助】請問PbO2是什么晶系的?
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想計(jì)算一下晶胞參數(shù) 但是找不到二氧化鉛是什么晶系 麻煩知道的給說一下 謝謝 |
» 搶金幣啦!回帖就可以得到:
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鐵桿木蟲 (職業(yè)作家)
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#### CIF created by Crystallographica 2 #### data_LeadIVOxideAlphaLt _audit_creation_method 'Crystallographica 2' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 4.948 _cell_length_b 5.951 _cell_length_c 5.497 _cell_volume 161.862 _cgraph_comments 'The new modification of lead dioxide and the texture of anode sediments ' _cgraph_title 'Lead(IV) Oxide - Alpha. Lt' _chemical_formula_sum 'Pb O2' _symmetry_space_group_name_H-M 'P b c n' _symmetry_space_group_name_Hall '-P 2n 2ab' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, -z' '-x+1/2, -y+1/2, z+1/2' 'x+1/2, y+1/2, -z+1/2' 'x+1/2, -y+1/2, -z' '-x+1/2, y+1/2, z' '-x, y, -z+1/2' 'x, -y, z+1/2' loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_occupancy Pb1 Pb4+ 0 0.178 0.25 0 Uiso 1 O1 O2- 0.26 0.43 0.44 0 Uiso 1 _eof #### End of Crystallographic Information File #### |
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#### CIF created by Crystallographica 2 #### data_LeadIVOxideBeta _audit_creation_method 'Crystallographica 2' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 4.9578 _cell_length_b 4.9578 _cell_length_c 3.3878 _cell_volume 83.2714 _cgraph_comments 'Powder neutron diffraction study of chemically prepared beta lead dioxide ' _cgraph_title 'Lead(IV) Oxide - Beta' _chemical_formula_sum 'Pb O2' _symmetry_space_group_name_H-M 'P 42/m n m' _symmetry_space_group_name_Hall '-P 4n 2n' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, -z' '-y+1/2, x+1/2, z+1/2' 'y+1/2, -x+1/2, -z+1/2' '-x, -y, z' 'x, y, -z' 'y+1/2, -x+1/2, z+1/2' '-y+1/2, x+1/2, -z+1/2' 'x+1/2, -y+1/2, -z+1/2' '-x+1/2, y+1/2, z+1/2' '-x+1/2, y+1/2, -z+1/2' 'x+1/2, -y+1/2, z+1/2' 'y, x, -z' '-y, -x, z' '-y, -x, -z' 'y, x, z' loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_thermal_displace_type _atom_site_occupancy Pb1 Pb4+ 0 0 0 0 Uiso 1 O1 O2- 0.3067 0.3067 0 0 Uiso 1 _eof #### End of Crystallographic Information File #### |
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