Structural variety in iridate oxides and hydroxides from hydrothermal synthesis
Sardar, Kripasindhu; Fisher, Janet; Thompsett, David; Lees, Martin R.; Clarkson, Guy J.; Sloan, Jeremy; Kashtiban, Reza J.; Walton, Richard I.; Chemical Science 2 (2011) 1573–; doi:10.1039/c1sc00192b

data_1515602
_publ_section_title
;
 Structural variety in iridate oxides and hydroxides from hydrothermal
 synthesis
;
_journal_issue                   8
_journal_name_full               'Chemical Science'
_journal_page_first              1573
_journal_paper_doi               10.1039/c1sc00192b
_journal_volume                  2
_journal_year                    2011
_chemical_formula_sum            'H8 Ir O8 Sr2'
_chemical_formula_weight         503.50
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 112.903(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   5.9657(3)
_cell_length_b                   10.9919(4)
_cell_length_c                   6.0097(3)
_cell_measurement_reflns_used    1379
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      29.00
_cell_measurement_theta_min      3.67
_cell_volume                     363.01(3)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997)'
_computing_publication_material  'SHELXTL (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 10.2833
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.870
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0248
_diffrn_reflns_av_sigmaI/netI    0.0330
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            1848
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         29.07
_diffrn_reflns_theta_min         3.71
_diffrn_standards_decay_%        nil
_exptl_absorpt_coefficient_mu    32.927
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.21
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'ABSPACK(CrysAlis, Oxford Diffraction)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    4.606
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             450
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.03
_refine_diff_density_max         1.658
_refine_diff_density_min         -1.804
_refine_diff_density_rms         0.323
_refine_ls_extinction_coef       0.0175(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   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         844
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0290
_refine_ls_R_factor_gt           0.0234
_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^)+(0.0329P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0533
_refine_ls_wR_factor_ref         0.0546
_reflns_number_gt                729
_reflns_number_total             844
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1sc00192b.txt
_cod_data_source_block           ks1
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1515602