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yanhualover(½ð±Ò+2):лл½»Á÷ 2010-06-18 14:57:00
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3Â¥2010-06-18 15:26:28
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wsht212(½ð±Ò+3):лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-06-19 13:09:28
rocking5939(½ð±Ò+2): 2010-06-21 09:24:59
rocking5939(½ð±Ò+1): 2010-10-10 08:22:14
wsht212(½ð±Ò+3):лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-06-19 13:09:28
rocking5939(½ð±Ò+2): 2010-06-21 09:24:59
rocking5939(½ð±Ò+1): 2010-10-10 08:22:14
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Ò×ÅÌÏÂÔØ: http://www.163pan.com/files/40n000k0w.html ÎļþÃû³Æ: icsd.cif Îļþ½éÉÜ: Bi2SiO5 ============================== data_30995-ICSD #?2008 by Fachinformationszentrum Karlsruhe, and the U.S. Secretary of #Commerce on behalf of the United States. All rights reserved. _database_code_ICSD 30995 _audit_creation_date 1987/03/16 _audit_update_record 2007/08/01 _chemical_name_systematic ; Dibismuth Dioxide Catena-silicate - Ht ; _chemical_formula_structural 'Bi2 O2 (Si O3)' _chemical_formula_sum 'Bi2 O5 Si1' _publ_section_title ; Crystal structure of bismuth silicate Bi2 Si O5 ; loop_ _citation_id _citation_journal_abbrev _citation_year _citation_journal_volume _citation_page_first _citation_page_last _citation_journal_id_ASTM primary 'Neues Jahrbuch fuer Mineralogie. Monatshefte (Band=Jahr) (1950-)' 1986 1986 13 18 NJMMAW 2 'Phase Transition' 1992 38 127 220 PHTRDP _publ_author_name 'Ketterer, J.;Kraemer, V.' _cell_length_a 15.173(2) _cell_length_b 5.4729(7) _cell_length_c 5.3132(7) _cell_angle_alpha 90. _cell_angle_beta 90. _cell_angle_gamma 90. _cell_volume 441.21 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'C m c 21' _symmetry_Int_Tables_number 36 _refine_ls_R_factor_all .052 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 'x, -y, z+.5' 2 '-x, -y, z+.5' 3 '-x, y, z' 4 'x, y, z' 5 'x+.5, -y+.5, z+.5' 6 '-x+.5, -y+.5, z+.5' 7 '-x+.5, y+.5, z' 8 'x+.5, y+.5, z' loop_ _atom_type_symbol _atom_type_oxidation_number Bi3+ 3 O2- -2 Si4+ 4 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_U_iso_or_equiv Bi1 Bi3+ 8 b 0.1648(1) 0.2174(1) 0.25 1. 0 0 Si1 Si4+ 4 a 0 0.675(2) 0.200(2) 1. 0 0 O1 O2- 4 a 0 0.522(8) 0.478(9) 1. 0 0.017(7) O2 O2- 8 b 0.092(2) 0.171(4) 0.689(4) 1. 0 0.018(5) O3 O2- 8 b 0.251(1) 0.491(5) 0.473(4) 1. 0 0.009(3) loop_ _atom_site_aniso_label _atom_site_aniso_type_symbol _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Bi1 Bi3+ 0.0111(3) 0.0107(3) 0.0102(4) 0.0029(2) 0.006(1) -0.002(2) Si1 Si4+ 0.007(5) 0.012(4) 0.016(8) 0 0 -0.008(3) #End of data_30995-ICSD |

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