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xiaowu787木蟲 (正式寫手)
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[交流]
【請教】晶體單胞里的具體原子數(shù)目,坐標? 已有3人參與
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查到AlMo3的晶體結(jié)構(gòu)cif為222(pm-3n) 現(xiàn)在的問題是知道了晶體結(jié)構(gòu)了,想得到在一個結(jié)構(gòu)單元(4.95-晶胞參數(shù))內(nèi)的原子數(shù)及對應(yīng)的坐標,不再考慮結(jié)構(gòu)對稱性pm-3n,只是想把4.95的單胞作為一個簡單立方的重復單元。該怎么找出單胞里的那些原子及坐標?謝謝! #### CIF created by Crystallographica 2 #### data_AluminiumMolybdenum _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 4.95 _cell_length_b 4.95 _cell_length_c 4.95 _cell_volume 121.287 _cgraph_comments 'Beta-wolfram structure of compounds between transition elements aluminium. gallium and antimony ' _cgraph_title 'Aluminium Molybdenum (1/3)' _chemical_formula_sum 'Al Mo3' _symmetry_space_group_name_H-M 'P m -3 n' _symmetry_space_group_name_Hall '-P 4n 2 3' 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, -z+1/2, y+1/2' '-x+1/2, z+1/2, -y+1/2' 'x, -y, -z' '-x, y, z' 'x+1/2, z+1/2, -y+1/2' '-x+1/2, -z+1/2, y+1/2' 'z+1/2, y+1/2, -x+1/2' '-z+1/2, -y+1/2, x+1/2' '-x, y, -z' 'x, -y, z' '-z+1/2, y+1/2, x+1/2' 'z+1/2, -y+1/2, -x+1/2' 'z, x, y' '-z, -x, -y' 'y, z, x' '-y, -z, -x' '-y, -z, x' 'y, z, -x' 'z, -x, -y' '-z, x, y' '-y, z, -x' 'y, -z, x' '-z, -x, y' 'z, x, -y' '-z, x, -y' 'z, -x, y' 'y, -z, -x' '-y, z, x' 'y+1/2, x+1/2, -z+1/2' '-y+1/2, -x+1/2, z+1/2' '-y+1/2, -x+1/2, -z+1/2' 'y+1/2, x+1/2, z+1/2' '-x+1/2, z+1/2, y+1/2' 'x+1/2, -z+1/2, -y+1/2' '-x+1/2, -z+1/2, -y+1/2' 'x+1/2, z+1/2, y+1/2' 'z+1/2, -y+1/2, x+1/2' '-z+1/2, y+1/2, -x+1/2' '-z+1/2, -y+1/2, -x+1/2' 'z+1/2, y+1/2, x+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 Al1 Al 0 0 0 0 Uiso 1 Mo1 Mo 0.25 0 0.5 0 Uiso 1 _eof #### End of Crystallographic Information File #### [ Last edited by xiaowu787 on 2010-10-19 at 11:27 ] |
木蟲之王 (文學泰斗)
至尊山羊
木蟲之王 (文學泰斗)
至尊山羊
木蟲之王 (文學泰斗)
至尊山羊
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