Tungsten(II) Monocarbonyl Bis(acetylacetonate): A Fourteen-Electron Docking Site for η2Four-Electron Donor Ligands
Andrew B. Jackson; Cynthia K. Schauer; Peter S. White; Joseph L. Templeton; Journal of the American Chemical Society 129 (2007) 10628–10629; doi:10.1021/ja0728270

data_4109864
_publ_section_title
;
 Tungsten(II) Monocarbonyl Bis(acetylacetonate): A Fourteen-Electron
 Docking Site for \h2Four-Electron Donor Ligands
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10628
_journal_page_last               10629
_journal_paper_doi               10.1021/ja0728270
_journal_volume                  129
_journal_year                    2007
_chemical_formula_moiety         'C24 H25 N O5 W'
_chemical_formula_sum            'C24 H25 N O5 W'
_chemical_formula_weight         591.30
_chemical_name_systematic
;

 ?

;
_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                 97.651(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.9096(2)
_cell_length_b                   39.8596(9)
_cell_length_c                   13.1378(3)
_cell_measurement_reflns_used    5660
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.43
_cell_measurement_theta_min      2.52
_cell_volume                     4624.13(18)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2'
_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      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker-AXS SMART APEX-II 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  0.0680
_diffrn_reflns_av_sigmaI/netI    0.0742
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       47
_diffrn_reflns_limit_k_min       -47
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            36837
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.02
_exptl_absorpt_coefficient_mu    5.030
_exptl_absorpt_correction_T_max  0.7871
_exptl_absorpt_correction_T_min  0.5191
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.699
_exptl_crystal_description       block
_exptl_crystal_F_000             2320
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.341
_refine_diff_density_min         -1.158
_refine_diff_density_rms         0.160
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     567
_refine_ls_number_reflns         8144
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0733
_refine_ls_R_factor_gt           0.0425
_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^)+(0.0281P)^2^+5.6798P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0714
_refine_ls_wR_factor_ref         0.0798
_reflns_number_gt                5901
_reflns_number_total             8144
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0728270si20070419_040555.cif
_cod_data_source_block           c07227
_cod_database_code               4109864