Unusually stable tungstenacyclobutadienes featuring an ONO trianionic pincer-type ligand
O'Reilly, Matthew E.; Ghiviriga, Ion; Abboud, Khalil A.; Veige, Adam S.; Dalton Transactions 42 (2013) 3326–; doi:10.1039/c2dt32653a

data_7020959
_publ_section_title
;
 Unusually stable tungstenacyclobutadienes featuring an ONO trianionic
 pincer-type ligand
;
_journal_issue                   10
_journal_name_full               'Dalton Transactions'
_journal_page_first              3326
_journal_paper_doi               10.1039/c2dt32653a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C33 H33 F12 N O2 W'
_chemical_formula_weight         887.45
_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
_audit_update_record
;
2012-07-03 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 112.5630(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.6072(11)
_cell_length_b                   9.2537(5)
_cell_length_c                   18.9077(10)
_cell_measurement_reflns_used    9884
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.49
_cell_measurement_theta_min      2.25
_cell_volume                     3168.0(3)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2 (Bruker, 2008)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL (Bruker, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II DUO'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Bruker Triumph'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0410
_diffrn_reflns_av_sigmaI/netI    0.0305
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            52389
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.17
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.750
_exptl_absorpt_correction_T_max  0.9529
_exptl_absorpt_correction_T_min  0.5941
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
'based on measured indexed crystal faces, Bruker SHELXTL v6.14 (Bruker 2008)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.861
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.01
_refine_diff_density_max         1.338
_refine_diff_density_min         -0.787
_refine_diff_density_rms         0.089
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.962
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     446
_refine_ls_number_reflns         7274
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.962
_refine_ls_R_factor_all          0.0297
_refine_ls_R_factor_gt           0.0209
_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^)+(0.0261P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0448
_refine_ls_wR_factor_ref         0.0462
_reflns_number_gt                6082
_reflns_number_total             7274
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c2dt32653a.txt
_cod_data_source_block           orei34
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7020959