#------------------------------------------------------------------------------
#$Date: 2023-12-14 16:01:33 +0100 (Thu 14 de Dec de 2023) $
#$Revision: 288312 $
#$URL: svn://www.crystallography.net/cod/cif/7/20/72/7207284.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_7207284
loop_
_publ_author_name
'Li, Henan'
'Baikie, Tom'
'Pramana, Stevin S.'
'Shin, J. Felix'
'Slater, Peter R.'
'Brink, Frank'
'Hester, James'
'Wallwork, Kia'
'White, Tim J.'
_publ_section_title
;
 Synthesis and characterisation of vanadium doped alkaline earth lanthanum
 germanate oxyapatite electrolyte
;
_journal_issue                   6
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              2658
_journal_paper_doi               10.1039/c1jm13752b
_journal_volume                  22
_journal_year                    2012
_chemical_formula_sum            'Ge6 La7.93 O26 Sr2'
_chemical_formula_weight         2128.574
_chemical_name_common            'Germanate electrolyte Apatite'
_space_group_IT_number           176
_symmetry_cell_setting           hexagonal
_symmetry_Int_Tables_number      176
_symmetry_space_group_name_Hall  '-P 6c'
_symmetry_space_group_name_H-M   'P 63/m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   9.91022(13)
_cell_length_b                   9.91022(13)
_cell_length_c                   7.32094(14)
_cell_measurement_reflns_used    411
_cell_measurement_temperature    298
_cell_volume                     622.679(17)
_diffrn_ambient_temperature      298
_diffrn_detector                 '128 linear position sensitive detectors'
_diffrn_measurement_device_type  local
_diffrn_radiation_monochromator  'Ge 335'
_diffrn_radiation_probe          neutron
_diffrn_radiation_type           Neutron
_diffrn_radiation_wavelength     1.62200
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       0
_diffrn_source_type
'Echidna (high resolution powder diffractometer) beamline'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    5.6764
_exptl_crystal_density_method    'not measured'
_pd_meas_2theta_range_max        163.94985
_pd_meas_2theta_range_min        4.00068
_pd_meas_number_of_points        3200
_pd_meas_scan_method             fixed
_pd_proc_2theta_range_max        163.95
_pd_proc_2theta_range_min        10
_pd_proc_info_excluded_regions   '4 to 10 degrees unreliable due to background''
_pd_proc_ls_prof_R_factor        0.03477
_pd_proc_ls_prof_wR_expected     0.03060
_pd_proc_ls_prof_wR_factor       0.04358
_pd_proc_wavelength              1.622
_pd_spec_mounting                'vanadium can'
_pd_spec_mount_mode              transmission
_pd_spec_shape                   cylinder
_refine_ls_goodness_of_fit_all   1.424
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     45
_refine_ls_number_restraints     0
_refine_ls_weighting_scheme      sigma
_cod_data_source_file            c1jm13752b.txt
_cod_data_source_block           La7.93Sr2Ge6O25.90
_cod_original_cell_volume        622.68(2)
_cod_original_sg_symbol_H-M      P63/m
_cod_database_code               7207284
loop_
_symmetry_equiv_pos_as_xyz
'-x, -y, -z'
'-x, -y, z+1/2'
'-x+y, -x, -z+1/2'
'-x+y, -x, z'
'-y, x-y, -z+1/2'
'-y, x-y, z'
'y, -x+y, -z'
'y, -x+y, z+1/2'
'x-y, x, -z'
'x-y, x, z+1/2'
'x, y, -z+1/2'
'x, y, z'
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
O1 O 0.0196(17) 0.0084(16) 0.0086(15) 0.0112(15) 0 0
O2 O 0.0068(15) 0.0094(15) 0.0098(16) 0.0013(13) 0 0
O3 O 0.0318(18) 0.0158(13) 0.0101(10) 0.0126(11) -0.01122(95) -0.00367(90)
O4 O 0.0191(17) 0.0191(17) 0.0239(29) 0.00954(87) 0 0
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_B_iso_or_equiv
La1 La 4 0.3333333 0.6666667 0.49803(47) 0.5611(42) 0.461(41)
Sr1 Sr 4 0.3333333 0.6666667 0.49803(47) 0.4217(72) 0.461(41)
La2 La 6 0.23088(22) -0.00936(28) 0.25 0.9478(48) 0.324(32)
Sr2 Sr 6 0.23088(22) -0.00936(28) 0.25 0.0522(48) 0.324(32)
Ge1 Ge 6 0.40031(25) 0.37236(21) 0.25 1 0.506(35)
O1 O 6 0.31177(37) 0.48614(36) 0.25 1 ?
O2 O 6 0.60378(33) 0.47648(36) 0.25 1 ?
O3 O 12 0.33960(30) 0.24713(28) 0.06284(25) 1 ?
O4 O 2 0 0 0.25 1 ?
