Reactions of Doubly Bridged Biscyclopentadienes with Molybdenum (Tungsten) Carbonyl
Wang, Baiquan; Zhu, Bolin; Xu, Shansheng; Zhou, Xiuzhong; Organometallics 22 (2003) 4842–4852; doi:10.1021/om034039z

data_4087048
_publ_section_title
;
 Reactions of Doubly Bridged Biscyclopentadienes with Molybdenum
 (Tungsten) Carbonyl
;
_journal_issue                   24
_journal_name_full               Organometallics
_journal_page_first              4842
_journal_page_last               4852
_journal_paper_doi               10.1021/om034039z
_journal_volume                  22
_journal_year                    2003
_chemical_formula_sum            'C21 H18 O6 Si W2'
_chemical_formula_weight         762.14
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 117.500(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.030(5)
_cell_length_b                   14.267(9)
_cell_length_c                   9.649(6)
_cell_measurement_reflns_used    796
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      23.59
_cell_measurement_theta_min      2.86
_cell_volume                     1102.6(12)
_computing_cell_refinement       'Bruker SMART'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0501
_diffrn_reflns_av_sigmaI/netI    0.0625
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            5980
_diffrn_reflns_theta_full        26.04
_diffrn_reflns_theta_max         26.04
_diffrn_reflns_theta_min         2.38
_exptl_absorpt_coefficient_mu    10.512
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.605160
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    2.295
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             708
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.20
_refine_diff_density_max         1.109
_refine_diff_density_min         -1.095
_refine_diff_density_rms         0.168
_refine_ls_extinction_coef       0.0062(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   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         2268
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0581
_refine_ls_R_factor_gt           0.0332
_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^)+(0.0151P)^2^+0.4820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0610
_refine_ls_wR_factor_ref         0.0679
_reflns_number_gt                1689
_reflns_number_total             2268
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om034039z_si_002.txt
_cod_data_source_block           030418b
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN' changed to
'multi-scan' according to the built-in table from CIF Core dictionary
named 'cif_core.dic' version 2.4.1 from 2010-06-29.

'_exptl_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4624 2016-04-14 12:54:50Z antanas 
;
_cod_original_cell_volume        1102.7(11)
_cod_original_sg_symbol_H-M      P2(1)/m
_cod_database_code               4087048