Bis(Imido) Tungsten Complexes: Efficient Precatalysts for the Homogeneous Dimerization of Ethylene
Messinis, Antonis M.; Batsanov, Andrei S.; Wright, William R. H.; Howard, Judith A. K.; Hanton, Martin J.; Dyer, Philip W.; ACS Catalysis 8 (2018) 11249–; doi:10.1021/acscatal.8b02202

data_4515811
_publ_section_title
;
 Bis(Imido) Tungsten Complexes: Efficient Precatalysts for the Homogeneous
 Dimerization of Ethylene
;
_journal_issue                   12
_journal_name_full               'ACS Catalysis'
_journal_page_first              11249
_journal_paper_doi               10.1021/acscatal.8b02202
_journal_volume                  8
_journal_year                    2018
_chemical_formula_moiety         'C22 H29 Cl2 F3 N2 O2 W'
_chemical_formula_sum            'C22 H29 Cl2 F3 N2 O2 W'
_chemical_formula_weight         665.22
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-11-08
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_cell_angle_alpha                77.061(6)
_cell_angle_beta                 85.454(6)
_cell_angle_gamma                74.916(6)
_cell_formula_units_Z            2
_cell_length_a                   8.8303(5)
_cell_length_b                   11.5526(6)
_cell_length_c                   12.8453(7)
_cell_measurement_reflns_used    9983
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      34.681
_cell_measurement_theta_min      2.390
_cell_volume                     1232.81(12)
_computing_cell_refinement       'SAINT v7.46A (Bruker, 2008)'
_computing_data_collection       'SMART v5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT v7.46A (Bruker, 2008)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL 2016/6 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 5.6
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0286
_diffrn_reflns_av_unetI/netI     0.0355
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.950
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            28833
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.950
_diffrn_reflns_theta_full        32.500
_diffrn_reflns_theta_max         34.987
_diffrn_reflns_theta_min         1.627
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           35.0
_diffrn_source_power             1.75
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    4.946
_exptl_absorpt_correction_T_max  0.4370
_exptl_absorpt_correction_T_min  0.3685
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS-2008/1 (Bruker,2008) was used for absorption correction. wR2(int) 
 was 0.0563 before and 0.0391 after correction. The Ratio of minimum to 
 maximum transmission is 0.8432. The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.792
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'rhombic plate'
_exptl_crystal_F_000             652
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.342
_refine_diff_density_min         -1.064
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         10307
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0295
_refine_ls_R_factor_gt           0.0229
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0212P)^2^+0.1308P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0468
_refine_ls_wR_factor_ref         0.0487
_reflns_Friedel_coverage         0.000
_reflns_number_gt                9114
_reflns_number_total             10307
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            W-bisimido.cif
_cod_data_source_block           15_11srv223
_cod_database_code               4515811
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.790
_shelx_estimated_absorpt_t_min   0.544
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
2. Others
 Uiso(H1A)=Uiso(H1B)=Uiso(H1C)=FVAR(1)
 Uiso(H4A)=Uiso(H4B)=Uiso(H4C)=FVAR(2)
 Uiso(H18A)=Uiso(H18B)=Uiso(H18C)=FVAR(3)
 Uiso(H19A)=Uiso(H19B)=Uiso(H19C)=FVAR(4)
 Uiso(H21A)=Uiso(H21B)=Uiso(H21C)=FVAR(5)
 Uiso(H22A)=Uiso(H22B)=Uiso(H22C)=FVAR(6)
3.a Riding coordinates:
 C7(H7), C9(H9), C13(H13), C14(H14), C15(H15), C17(H17), C20(H20)
3.b Rotating group:
 C1(H1A,H1B,H1C), C4(H4A,H4B,H4C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C),
 C21(H21A,H21B,H21C), C22(H22A,H22B,H22C)
3.c Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B)
;
_shelx_res_checksum              86626
_shelx_hkl_checksum              76012
_olex2_submission_special_instructions 'No special instructions were received'