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6Â¥: Originally posted by kaixinxixi at 2012-08-18 21:26:24
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kaixinxixi: ½ð±Ò+3 2012-08-17 13:51:44
lijunjie84: ½ð±Ò+1, ¸ÐлӦף£¡ 2012-08-17 16:54:55
ĿǰµÄICSDÊý¾Ý¿â£¨2011-1£©Ã»ÓÐÕÒµ½Ö»ÓÐÕâËÄÔªµÄ×éºÏ£¬Ö»ÓÐÒÔϵÄÒ»¸öÎåÔª»¯ºÏÎ
data_166997-ICSD
_database_code_ICSD                166997
_audit_creation_date               2010/08/01
_chemical_name_systematic
;
Potassium Strontium Scandium Disilicate
;
_chemical_formula_structural       'K Sr Sc (Si2 O7)'
_chemical_formula_sum              'K1 O7 Sc1 Si2 Sr1'
_publ_section_title
;
The crystal structures of three new complex silicates of scandium
;
loop_
_citation_id
_citation_journal_abbrev
_citation_year
_citation_journal_volume
_citation_page_first
_citation_page_last
_citation_journal_id_ASTM
primary 'Canadian Mineralogist' 2010 48 51 68 CAMIA6
_publ_author_name
;
Wierzbicka Wieczorek, M.;Kolitsch, U.;Tillmanns, E.
;
_cell_length_a                     9.446(2)
_cell_length_b                     5.478(1)
_cell_length_c                     12.537(3)
_cell_angle_alpha                  90.
_cell_angle_beta                   104.39(3)
_cell_angle_gamma                  90.
_cell_volume                       628.38
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'P 1 21/n 1'
_symmetry_Int_Tables_number        14
_refine_ls_R_factor_all            .033
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
  1        '-x+.5, y+.5, -z+.5'
  2        '-x, -y, -z'
  3        'x+.5, -y+.5, z+.5'
  4        'x, y, z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
K1+        1
O2-        -2
Sc3+        3
Si4+        4
Sr2+        2
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
Sr1 Sr2+ 4 e 0.64474(3) 0.77038(5) 0.17439(2) 1. 0 0.01042(9)
K1 K1+ 4 e 0.13142(7) 0.26608(13) 0.14338(6) 0.99 0 0.01761(15)
Sc1 Sc3+ 4 e 0.75821(5) 0.23577(10) 0.02377(4) 1. 0 0.00654(12)
Si1 Si4+ 4 e 0.44736(8) 0.27864(15) 0.11681(6) 1. 0 0.00675(16)
Si2 Si4+ 4 e 0.97477(9) 0.75689(14) 0.14277(6) 1. 0 0.00652(15)
O1 O2- 4 e 0.3551(2) 0.0904(4) 0.02826(16) 1. 0 0.0110(4)
O2 O2- 4 e 0.3968(2) 0.5597(4) 0.09062(16) 1. 0 0.0117(4)
O3 O2- 4 e 0.6233(2) 0.2530(4) 0.13902(16) 1. 0 0.0098(4)
O4 O2- 4 e 0.4118(2) 0.2007(4) 0.23541(16) 1. 0 0.0111(4)
O5 O2- 4 e 0.0800(2) 0.7670(4) 0.05973(16) 1. 0 0.0113(4)
O6 O2- 4 e 0.8591(2) 0.5336(4) 0.12269(17) 1. 0 0.0122(4)
O7 O2- 4 e 0.8884(2) 0.0098(3) 0.15242(16) 1. 0 0.0090(4)

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
Sr1 Sr2+ 0.00990(15) 0.01013(15) 0.01154(14) -0.00065(11) 0.00326(11)
0.00098(12)
K1 K1+ 0.0088(3) 0.0135(3) 0.0305(4) 0.0000(3) 0.0048(3) -0.0026(3)
Sc1 Sc3+ 0.0063(2) 0.0065(3) 0.0069(2) 0.00015(19) 0.0017(2) -0.00029(19)
Si1 Si4+ 0.0065(4) 0.0065(4) 0.0072(4) -0.0001(3) 0.0014(3) 0.0002(3)
Si2 Si4+ 0.0062(3) 0.0066(4) 0.0068(3) 0.0002(3) 0.0017(3) -0.0006(3)
O1 O2- 0.0115(11) 0.0101(1) 0.0111(1) -0.0017(8) 0.0021(9) -0.0010(8)
O2 O2- 0.0102(11) 0.0114(11) 0.0118(1) 0.0014(8) -0.0005(9) 0.0003(8)
O3 O2- 0.0072(9) 0.0141(11) 0.0084(9) 0.0007(8) 0.0026(7) 0.0009(8)
O4 O2- 0.0121(1) 0.0140(11) 0.0073(9) -0.0028(8) 0.0027(8) 0.0000(8)
O5 O2- 0.0124(1) 0.0117(11) 0.0116(1) 0.0009(8) 0.0066(8) 0.0018(8)
O6 O2- 0.0116(11) 0.0099(11) 0.0153(11) -0.0022(8) 0.0038(9) -0.0022(8)
O7 O2- 0.0102(11) 0.0087(1) 0.0085(9) 0.0028(8) 0.0032(8) 0.0002(8)
#End of data_166997-ICSD
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kaixinxixi

гæ (ÕýʽдÊÖ)

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2Â¥: Originally posted by linhua0402313 at 2012-08-17 11:30:20
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data_166997-ICSD
_database_code_ICSD                166997
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