Cl‒OH ion-exchanging process in chlorapatite (Ca~5~(PO~4~)~3~Cl~<i>x~</i>(OH)~1{-~<i>x</i>}) ‒ a deep insight
García-Tuñón, Esther; Dacuña, Bruno; Zaragoza, Guillermo; Franco, Jaime; Guitián, Francisco; Acta Crystallographica Section B 68 (2012) 467–479; doi:10.1107/S0108768112019520

data_2105285
_publ_section_title
;
 Cl--OH ion-exchanging process in chlorapatite
 (Ca~5~(PO~4~)~3~Cl~<i>x~</i>(OH)~1{-~<i>x</i>}) -- a deep insight
;
_journal_coeditor_code           ZB5021
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              467
_journal_page_last               479
_journal_paper_doi               10.1107/S0108768112019520
_journal_volume                  68
_journal_year                    2012
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'Ca6 4 (P O4)'
_chemical_formula_sum            'Ca6 O16 P4'
_chemical_formula_weight         620.36
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2010-10-11T16:14:41-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 107.434(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.8348(6)
_cell_length_b                   9.0961(4)
_cell_length_c                   12.8365(5)
_cell_measurement_reflns_used    3765
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.38
_cell_measurement_theta_min      2.79
_cell_measurement_wavelength     0.71073
_cell_volume                     1429.78(11)
_computing_cell_refinement       'APPEX2 (BRUKER AXS, 2005)'
_computing_data_collection       'APPEX2 (BRUKER AXS, 2005)'
_computing_data_reduction        'APPEX2 (BRUKER AXS, 2005)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-97  (Giacovazzo et all, 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'BRUKER APPEX-II CCD'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0319
_diffrn_reflns_av_unetI/netI     0.0368
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            11763
_diffrn_reflns_theta_full        26.4
_diffrn_reflns_theta_max         26.4
_diffrn_reflns_theta_min         1.66
_exptl_absorpt_coefficient_mu    2.77
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6106
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'BRUKER SADABS'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    2.882
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.928
_refine_diff_density_min         -0.845
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     362
_refine_ls_number_reflns         2916
_refine_ls_number_restraints     205
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0592
_refine_ls_R_factor_gt           0.0418
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0418P)^2^+6.1370P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1008
_reflns_number_gt                2303
_reflns_number_total             2916
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            zb5021.cif
_cod_data_source_block           1500l
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2105285