#------------------------------------------------------------------------------
#$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/2/01/36/2013656.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2013656
loop_
_publ_author_name
'Redhammer, Günther R.'
'Roth, G.'
_publ_section_title
;
 Lithium and sodium yttrium orthosilicate oxyapatite,
 LiY₉(SiO₄)₆O₂ and NaY₉(SiO₄)₆O₂, at both 100K and near
 room temperature
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              i120
_journal_page_last               i124
_journal_paper_doi               10.1107/S0108270103023321
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'Li Y9 (Si O4)6 O2'
_chemical_formula_moiety         'Li1 O26 Si6 Y9'
_chemical_formula_sum            'Li O26 Si6 Y9'
_chemical_formula_weight         1391.76
_space_group_IT_number           176
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  '-P 6c'
_symmetry_space_group_name_H-M   'P 63/m'
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   9.3376(14)
_cell_length_b                   9.3376(14)
_cell_length_c                   6.7321(10)
_cell_measurement_reflns_used    3117
_cell_measurement_temperature    295.0(10)
_cell_measurement_theta_max      27.77
_cell_measurement_theta_min      2.9
_cell_volume                     508.34(13)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        X-AREA
_computing_molecular_graphics    'Diamond (Brandenburg & Berndt 1999)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295.0(10)
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0911
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            4204
_diffrn_reflns_theta_full        26.36
_diffrn_reflns_theta_max         26.36
_diffrn_reflns_theta_min         2.52
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    25.85
_exptl_absorpt_correction_T_max  0.167
_exptl_absorpt_correction_T_min  0.023
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
'via equivalents using Stoe X-SHAPE and X-RED (Stoe & Cie, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    4.546
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             646
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.978
_refine_diff_density_min         -0.566
_refine_ls_extinction_coef       0.051(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     46
_refine_ls_number_reflns         382
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_gt           0.0312
_refine_ls_shift/su_max          0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.013P)²] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0542
_reflns_number_gt                325
_reflns_number_total             382
_reflns_threshold_expression     'I > 2σ(I)'
_cod_data_source_file            ln1182.cif
_cod_data_source_block           LiY296K
_cod_original_sg_symbol_H-M      P63/m
_cod_original_formula_sum        'Li1 O26 Si6 Y9'
_cod_database_code               2013656
_cod_database_fobs_code          2013656
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, z+1/2'
'-y, x-y, z'
'-x+y, -x, z'
'x-y, x, z+1/2'
'y, -x+y, z+1/2'
'-x, -y, -z'
'x, y, -z-1/2'
'y, -x+y, -z'
'x-y, x, -z'
'-x+y, -x, -z-1/2'
'-y, x-y, -z-1/2'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
Y1 0.23327(8) 0.23732(9) 0.25 0.0029(3) Uani d SP 1 . . Y
Y2 0.3333 0.6667 0.49869(18) 0.0083(5) Uani d SP 0.75 . . Y
Li 0.3333 0.6667 0.49869(18) 0.008(3) Uani d SP 0.25 . . Li
Si 0.4009(3) 0.0269(3) 0.25 0.0028(8) Uani d SP 1 . . Si
O4 0 0 0.25 0.017(3) Uani d SP 1 . . O
O1 0.6005(7) 0.1255(7) 0.25 0.0089(19) Uani d SP 1 . . O
O2 0.3195(8) -0.1700(7) 0.25 0.0154(19) Uani d SP 1 . . O
O3 0.3394(7) 0.0889(6) 0.0599(6) 0.0200(16) Uani d . 1 . . O
loop_
_atom_site_aniso_label
_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
Y1 0.0045(4) 0.0025(4) 0.0016(4) 0.0017(3) 0 0
Y2 0.0067(5) 0.0067(5) 0.0114(7) 0.0033(3) 0 0
Li 0.007(5) 0.007(5) 0.0114(5) 0.003(2) 0 0
Si 0.0048(12) 0.0041(12) 0.0005(10) 0.0029(9) 0 0
O4 0.014(4) 0.014(4) 0.023(6) 0.007(2) 0 0
O1 0.010(3) 0.013(3) 0.008(3) 0.009(3) 0 0
O2 0.030(4) 0.004(3) 0.011(3) 0.008(3) 0 0
O3 0.042(3) 0.021(3) 0.012(2) 0.026(2) -0.0180(18) -0.0125(16)
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
O O 0.0106 0.006 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Si Si 0.0817 0.0704 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Y Y -2.7962 3.5667 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Li Li -0.0003 0.0001 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
O4 Y1 O3 . 5 104.50(14) ?
O3 Y1 O3 5 10 134.1(3) ?
O4 Y1 O1 . 4_665 152.85(14) ?
O3 Y1 O1 5 4_665 85.05(13) ?
O4 Y1 O3 . . 84.62(13) ?
O3 Y1 O3 5 . 139.54(17) ?
O3 Y1 O3 10 . 77.98(9) ?
O1 Y1 O3 4_665 . 72.41(18) ?
O4 Y1 O3 . 8_556 84.62(13) ?
O3 Y1 O3 . 8_556 63.50(19) ?
O4 Y1 O2 . 3 109.92(13) ?
O3 Y1 O2 5 3 68.50(13) ?
O1 Y1 O2 4_665 3 97.23(19) ?
O3 Y1 O2 . 3 145.74(11) ?
O2 Y2 O2 1_565 3 73.33(17) ?
O2 Y2 O1 1_565 7_666 93.06(15) ?
O2 Y2 O1 3 7_666 153.7(2) ?
O2 Y2 O1 4_665 7_666 125.1(2) ?
O2 Y2 O1 4_665 9_566 153.7(2) ?
O1 Y2 O1 7_666 9_566 76.19(16) ?
O2 Y2 O3 1_565 6_565 66.40(16) ?
O2 Y2 O3 3 6_565 88.09(18) ?
O2 Y2 O3 4_665 6_565 139.06(15) ?
O1 Y2 O3 7_666 6_565 65.66(17) ?
O1 Y2 O3 9_566 6_565 60.09(16) ?
O1 Y2 O3 10_556 6_565 126.79(14) ?
O3 Y2 O3 6_565 2_665 117.85(4) ?
O2 Si O1 . . 113.9(3) yes
O2 Si O3 . . 111.1(2) yes
O1 Si O3 . . 108.1(3) yes
O3 Si O3 . 8_556 104.0(3) yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
Y1 O4 . 2.1973(7) yes
Y1 O3 5 2.266(4) yes
Y1 O1 4_665 2.364(6) yes
Y1 O3 . 2.432(4) yes
Y1 O2 3 2.699(6) yes
Y1 Si . 3.064(2) ?
Y1 Si 3 3.261(2) ?
Y1 Y1 4 3.8059(13) ?
Y1 Y2 . 4.0004(10) ?
Y2 O2 1_565 2.312(4) yes
Y2 O1 7_666 2.411(4) yes
Y2 O3 6_565 2.782(6) yes
Y2 Si 7_666 3.1793(19) ?
Si O2 . 1.600(6) yes
Si O1 . 1.614(6) yes
Si O3 . 1.623(4) yes
