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_1508436
_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            'H3 Ni O7 S Tb'
_chemical_formula_weight         364.71
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           19
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                   13.2640(9)
_cell_length_b                   6.1681(4)
_cell_length_c                   6.5148(5)
_cell_measurement_temperature    223(2)
_cell_volume                     533.00(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.940
_diffrn_measured_fraction_theta_max 0.940
_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  0.0489
_diffrn_reflns_av_sigmaI/netI    0.0377
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            3226
_diffrn_reflns_theta_full        28.24
_diffrn_reflns_theta_max         28.24
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    17.059
_exptl_crystal_density_diffrn    4.545
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             672
_refine_diff_density_max         2.638
_refine_diff_density_min         -2.361
_refine_diff_density_rms         0.382
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.78(3)
_refine_ls_extinction_coef       0.0029(8)
_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   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     102
_refine_ls_number_reflns         1209
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0346
_refine_ls_R_factor_gt           0.0339
_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^)+(0.0657P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0844
_refine_ls_wR_factor_ref         0.0848
_reflns_number_gt                1181
_reflns_number_total             1209
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            tCSD416697.cif
_cod_data_source_block           TbNi(OH)3(SO4)-I
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1508436