Synthesis and Structure of Molybdenum and Tungsten Bisphosphine Carbonyl Dimers
Brayton, Daniel F.; Heinekey, D. Michael; Organometallics 27 (2008) 3901–; doi:10.1021/om800273t

data_4071620
_publ_section_title
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 Synthesis and Structure of Molybdenum and Tungsten Bisphosphine Carbonyl
 Dimers
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_journal_issue                   15
_journal_name_full               Organometallics
_journal_page_first              3901
_journal_paper_doi               10.1021/om800273t
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C44 H64 O8 P4 W2, C7 H16'
_chemical_formula_sum            'C51 H80 O8 P4 W2'
_chemical_formula_weight         1312.73
_chemical_name_common            DFBI160
_chemical_name_systematic        DFBI160
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                110.8158(6)
_cell_angle_beta                 108.9489(7)
_cell_angle_gamma                105.0426(7)
_cell_formula_units_Z            2
_cell_length_a                   14.3209(2)
_cell_length_b                   15.2303(2)
_cell_length_c                   15.9883(2)
_cell_measurement_reflns_used    1714
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      28.43
_cell_measurement_theta_min      2.27
_cell_volume                     2791.99(7)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       KappaCCD
_computing_data_reduction        'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'maXus, Zortep'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.949
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0508
_diffrn_reflns_av_sigmaI/netI    0.0684
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            22047
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.43
_diffrn_reflns_theta_min         2.27
_exptl_absorpt_coefficient_mu    4.279
_exptl_absorpt_correction_T_max  0.27
_exptl_absorpt_correction_T_min  0.18
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   HKL2000
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.561
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1316
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.30
_refine_diff_density_max         2.843
_refine_diff_density_min         -1.965
_refine_diff_density_rms         0.188
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     604
_refine_ls_number_reflns         13378
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0584
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0503P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0918
_refine_ls_wR_factor_ref         0.0997
_reflns_number_gt                10272
_reflns_number_total             13378
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om800273t-file002.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
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_cod_database_code               4071620