Pseudomorphic 2A→2M→2H phase transitions in lanthanum strontium germanate electrolyte apatites
Pramana, Stevin S.; White, T. J.; Schreyer, Martin K.; Ferraris, Cristiano; Slater, Peter R.; Orera, Alodia; Bastow, T. J.; Mangold, Stefan; Doyle, Stephen; Liu, Tao; Fajar, Andika; Srinivasan, Madhavi; Baikie, Tom; Dalton Transactions  (2009) 8280–8291; doi:10.1039/b907704a

data_7002411
_publ_section_title
;
 Pseudomorphic 2A\\rightarrow 2M\\rightarrow 2H phase transitions in
 lanthanum strontium germanate electrolyte apatites
;
_journal_issue                   39
_journal_name_full               'Dalton Transactions'
_journal_page_first              8280
_journal_page_last               8291
_journal_paper_doi               10.1039/b907704a
_journal_year                    2009
_chemical_formula_sum            'Ge6 La8.44 O26.22 Sr1.56'
_chemical_formula_weight         2160.110
_chemical_name_common            'Germanate electrolyte Apatite'
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      11
_symmetry_space_group_name_Hall  '-P 2c'
_symmetry_space_group_name_H-M   'P 1 1 21/m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120.00(1)
_cell_formula_units_Z            1
_cell_length_a                   9.9102(2)
_cell_length_b                   9.9265(1)
_cell_length_c                   7.3230(1)
_cell_measurement_reflns_used    286
_cell_measurement_temperature    300
_cell_volume                     623.88(6)
_computing_cell_refinement       'TOPAS (Bruker, 2005)'
_computing_data_collection       local
_computing_data_reduction        'TOPAS (Bruker, 2005)'
_computing_molecular_graphics
;ATOMS (Dowty, 2002),
GFOURIER (Gonzales-Platas, J. & Rodriguez-Carvajal, J., 2006)
;
_computing_structure_refinement  'TOPAS (Bruker, 2005)'
_computing_structure_solution    'TOPAS (Bruker, 2005)'
_diffrn_ambient_temperature      300
_diffrn_detector                 'INEL 90 degree linear PSD'
_diffrn_measurement_device_type  local
_diffrn_radiation_monochromator  'Ge 111'
_diffrn_radiation_type           'synchrotron XRD'
_diffrn_radiation_wavelength     1.307
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_source_type              'ANKA beamline PDIFF'
_exptl_absorpt_coefficient_mu    827.87
_exptl_crystal_density_diffrn    5.750
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             939.6
_pd_meas_2theta_range_max        108.200
_pd_meas_2theta_range_min        8.000
_pd_meas_number_of_points        16701
_pd_meas_scan_method             fixed
_pd_proc_2theta_range_max        108.2
_pd_proc_2theta_range_min        8
_pd_proc_info_excluded_regions
;25.73-25.88, 26.19-26.30, 43.25-43.38, 52.98-53.21, 53.94-54.19 degrees due
 to spike
;
_pd_proc_ls_prof_R_factor        0.0971
_pd_proc_ls_prof_wR_expected     0.0657
_pd_proc_ls_prof_wR_factor       0.1292
_pd_proc_wavelength              1.307
_pd_spec_mounting                'flat plate'
_pd_spec_mount_mode              reflection
_pd_spec_shape                   'flat sheet'
_refine_ls_goodness_of_fit_all   1.97
_refine_ls_matrix_type           full
_refine_ls_number_constraints    20
_refine_ls_number_parameters     69
_refine_ls_number_restraints     0
_refine_ls_R_I_factor            0.0699
_refine_ls_weighting_scheme      sigma
_cod_data_source_file            b907704a.txt
_cod_data_source_block           La8.44Sr1.56Ge6O26.22
_cod_original_cell_volume        623.86(2)
_cod_original_sg_symbol_Hall     -P_2c
_cod_database_code               7002411