Synthesis and structures of a series of novel rare earth transition metal sulfates
Xiqu Wang; Lumei Liu; Allan J. Jacobson; Journal of rare earths 24 (2006) 659–662; doi:10.1016/S1002-0721(07)60004-0

data_1508438
_publ_section_title
;
 Synthesis and structures of a series of novel rare earth transition metal
 sulfates
;
_journal_issue                   6
_journal_name_full               'Journal of rare earths'
_journal_page_first              659
_journal_page_last               662
_journal_paper_doi               10.1016/S1002-0721(07)60004-0
_journal_volume                  24
_journal_year                    2006
_chemical_formula_sum            'Gd H3 Ni O7 S'
_chemical_formula_weight         363.04
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           62
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0908(6)
_cell_length_b                   7.2442(6)
_cell_length_c                   10.3789(9)
_cell_measurement_temperature    223(2)
_cell_volume                     533.13(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_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  0.0231
_diffrn_reflns_av_sigmaI/netI    0.0165
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            2993
_diffrn_reflns_theta_full        28.12
_diffrn_reflns_theta_max         28.12
_diffrn_reflns_theta_min         3.43
_exptl_absorpt_coefficient_mu    16.230
_exptl_crystal_density_diffrn    4.523
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             668
_refine_diff_density_max         1.251
_refine_diff_density_min         -0.602
_refine_diff_density_rms         0.174
_refine_ls_extinction_coef       0.0023(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     61
_refine_ls_number_reflns         672
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0219
_refine_ls_R_factor_gt           0.0182
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0296P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0432
_refine_ls_wR_factor_ref         0.0443
_reflns_number_gt                606
_reflns_number_total             672
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            tCSD416699.cif
_cod_data_source_block           GdNi(OH)3(SO4)
_cod_depositor_comments          'temperature corrected'
_cod_original_sg_symbol_H-M      Pnma
_cod_original_formula_sum        'H3 Gd Ni O7 S'
_cod_database_code               1508438