Synthesis and crystal structures of iron hydrogen phosphates
Redrup, Kate V.; Weller, Mark T.; Dalton Transactions  (2009) 3786–3792; doi:10.1039/b902519g

data_7001234
_publ_section_title
;
 Synthesis and crystal structures of iron hydrogen phosphates
;
_journal_issue                   19
_journal_name_full               'Dalton Transactions'
_journal_page_first              3786
_journal_page_last               3792
_journal_paper_doi               10.1039/b902519g
_journal_year                    2009
_chemical_formula_sum            'Fe4 H2 O10 P2'
_chemical_formula_weight         447.36
_chemical_name_systematic
;
?
;
_space_group_IT_number           9
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 116.48(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.927(3)
_cell_length_b                   6.5566(13)
_cell_length_c                   9.6670(19)
_cell_measurement_temperature    293(2)
_cell_volume                     733.4(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_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  0.0785
_diffrn_reflns_av_sigmaI/netI    0.1063
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            3363
_diffrn_reflns_theta_full        27.79
_diffrn_reflns_theta_max         27.79
_diffrn_reflns_theta_min         3.52
_exptl_absorpt_coefficient_mu    8.239
_exptl_absorpt_correction_T_max  0.9221
_exptl_absorpt_correction_T_min  0.7340
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    4.052
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.586
_refine_diff_density_min         -1.335
_refine_diff_density_rms         0.374
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.39(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.104
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     85
_refine_ls_number_reflns         1451
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.104
_refine_ls_R_factor_all          0.1112
_refine_ls_R_factor_gt           0.0674
_refine_ls_shift/su_max          1.073
_refine_ls_shift/su_mean         0.032
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0382P)^2^+32.8997P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1340
_refine_ls_wR_factor_ref         0.1582
_reflns_number_gt                1047
_reflns_number_total             1451
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            B902519G.txt
_cod_data_source_block           2007kvb0053
_cod_original_formula_sum        'H2 Fe4 O10 P2'
_cod_database_code               7001234