Synthesis and characterisation of vanadium doped alkaline earth lanthanum germanate oxyapatite electrolyte
Li, Henan; Baikie, Tom; Pramana, Stevin S.; Shin, J. Felix; Slater, Peter R.; Brink, Frank; Hester, James; Wallwork, Kia; White, Tim J.; Journal of Materials Chemistry 22 (2012) 2658–; doi:10.1039/c1jm13752b

data_7207292
_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            'Ba2 Ge5.29 La7.67 O26 V0.71'
_chemical_formula_weight         2175.7(9)
_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                   9.97861(17)
_cell_length_b                   9.97861(17)
_cell_length_c                   7.41128(18)
_cell_measurement_reflns_used    424
_cell_measurement_temperature    298
_cell_volume                     639.09(2)
_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            yellow
_exptl_crystal_density_diffrn    5.653(2)
_exptl_crystal_density_method    'not measured'
_pd_meas_2theta_range_max        163.94981
_pd_meas_2theta_range_min        4.00071
_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        0.03612
_pd_proc_ls_prof_wR_expected     0.02979
_pd_proc_ls_prof_wR_factor       0.04522
_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   1.518
_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           La7.67Ba2Ge5.29V0.71O25.86
_cod_depositor_comments
;
 Changing the _chemical_formula_sum data item value from
 'Ba2 Ge5.29 La7.67 O26 v0.71' to 'Ba2 Ge5.29 La7.67 O26 V0.71'.

 Antanas Vaitkus,
 2017-01-07
;
_cod_original_cell_volume        639.09(3)
_cod_original_sg_symbol_H-M      P63/m
_cod_original_formula_sum        Ba2Ge5.29La7.67O26v0.71
_cod_database_code               7207292