Syntheses and Structures of Zirconium Tetranuclear Polyhydrides
Liu, Fu-Chen; Chu, Yong-Jui; Yang, Chien-Chan; Lee, Gene-Hsian; Peng, Shie-Ming; Organometallics 29 (2010) 2685–; doi:10.1021/om1001843

data_4065895
_publ_section_title
;
 Syntheses and Structures of Zirconium Tetranuclear Polyhydrides
;
_journal_issue                   12
_journal_name_full               Organometallics
_journal_page_first              2685
_journal_paper_doi               10.1021/om1001843
_journal_volume                  29
_journal_year                    2010
_chemical_formula_sum            'C47 H76 Cl4 Zr4'
_chemical_formula_weight         1147.76
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           113
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 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            4
_cell_length_a                   21.7273(7)
_cell_length_b                   21.7273(7)
_cell_length_c                   10.5748(6)
_cell_measurement_reflns_used    5661
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.91
_cell_measurement_theta_min      2.34
_cell_volume                     4992.1(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
_diffrn_measurement_method       'omega scans'
_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  0.0461
_diffrn_reflns_av_sigmaI/netI    0.0271
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            38737
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.33
_exptl_absorpt_coefficient_mu    1.056
_exptl_absorpt_correction_T_max  0.8166
_exptl_absorpt_correction_T_min  0.7782
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            deep-yellow
_exptl_crystal_density_diffrn    1.527
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2344
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.123
_refine_diff_density_min         -0.810
_refine_diff_density_rms         0.095
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.38(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     323
_refine_ls_number_reflns         5948
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0321
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0610P)^2^+4.7708P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.0913
_reflns_number_gt                5815
_reflns_number_total             5948
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om1001843_si_001.cif
_cod_data_source_block           ic12868
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P-42(1)m
_cod_database_code               4065895