Reduced Zirconium Halide Clusters in Aqueous Solution
Xiaobing Xie; Timothy Hughbanks; Inorganic Chemistry 39 (2000) 555–561; doi:10.1021/ic9908423

data_4300115
_publ_section_title
;
Reduced Zirconium Halide Clusters in Aqueous Solution
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              555
_journal_page_last               561
_journal_paper_doi               10.1021/ic9908423
_journal_volume                  39
_journal_year                    2000
_chemical_formula_sum            'B Cl18 H52.5 O24 Rb0.44 Zr6'
_chemical_formula_weight         1670.76
_space_group_IT_number           229
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  '-I 4 2 3'
_symmetry_space_group_name_H-M   'I m -3 m'
_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            2
_cell_length_a                   13.8962(3)
_cell_length_b                   13.8962(3)
_cell_length_c                   13.8962(3)
_cell_measurement_temperature    213(2)
_cell_volume                     2683.42(10)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.977
_diffrn_measured_fraction_theta_max 0.977
_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  0.0607
_diffrn_reflns_av_sigmaI/netI    0.0256
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            6361
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.07
_exptl_absorpt_coefficient_mu    2.472
_exptl_absorpt_correction_T_max  0.8864
_exptl_absorpt_correction_T_min  0.7901
_exptl_crystal_density_diffrn    2.068
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1624
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.442
_refine_diff_density_min         -0.440
_refine_diff_density_rms         0.093
_refine_ls_extinction_coef       0.00068(14)
_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   1.109
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     22
_refine_ls_number_reflns         337
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.109
_refine_ls_R_factor_all          0.0413
_refine_ls_R_factor_gt           0.0264
_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^)+(0.0351P)^2^+1.8503P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0646
_refine_ls_wR_factor_ref         0.0669
_reflns_number_gt                252
_reflns_number_total             337
_reflns_threshold_expression     >2sigma(I)
_cod_original_formula_sum        'H52.50 B Cl18 O24 Rb0.44 Zr6'
_cod_database_code               4300115