Silver europium(III) polyphosphate
Ayadi, Mounir; Férid, Mokhtar; Moine, Bernard; Acta Crystallographica Section E 65 (2009) i13–; doi:10.1107/S1600536809004085

data_2220992
_publ_section_title
;
 Silver europium(III) polyphosphate
;
_journal_coeditor_code           BR2089
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              i13
_journal_paper_doi               10.1107/S1600536809004085
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'Ag Eu (P O3)4'
_chemical_formula_sum            'Ag Eu O12 P4'
_chemical_formula_weight         575.72
_chemical_name_systematic
;
Europium(III) silver polyphosphate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.420(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.9654(3)
_cell_length_b                   13.1445(7)
_cell_length_c                   7.2321(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      30.11
_cell_measurement_theta_min      2.35
_cell_volume                     947.31(7)
_computing_cell_refinement       'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2001)'
_computing_data_reduction        'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 1998)'
_computing_publication_material  'SHELXL08 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL08 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS08 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.912
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0514
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            3371
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.80
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    9.370
_exptl_absorpt_correction_T_max  0.201
_exptl_absorpt_correction_T_min  0.167
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    4.037
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1064
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.17
_refine_diff_density_max         2.425
_refine_diff_density_min         -2.060
_refine_ls_extinction_coef       0.00014(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL08 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2019
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0422
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0685P)^2^+1.0941P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1041
_refine_ls_wR_factor_ref         0.1091
_reflns_number_gt                1704
_reflns_number_total             2019
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            br2089.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2220992
_cod_database_fobs_code          2220992