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_4515813
_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         'C40 H44 Cl2 N2 O2 W'
_chemical_formula_sum            'C40 H44 Cl2 N2 O2 W'
_chemical_formula_weight         839.52
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_date             2017-11-09
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_cell_angle_alpha                90
_cell_angle_beta                 103.618(11)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.2309(9)
_cell_length_b                   10.3469(7)
_cell_length_c                   22.3012(13)
_cell_measurement_reflns_used    9891
_cell_measurement_temperature    120
_cell_measurement_theta_max      29.74
_cell_measurement_theta_min      2.18
_cell_volume                     3640.0(4)
_computing_cell_refinement       'SAINT v7.46A (Bruker, 2008)'
_computing_data_collection       'SMART v5.630 (Bruker, 2003)'
_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
_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 1.000
_diffrn_measured_fraction_theta_max 1.000
_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_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0674
_diffrn_reflns_av_unetI/netI     0.0455
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            73384
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.998
_diffrn_reflns_theta_min         1.406
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           40.0
_diffrn_source_power             2.0
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.357
_exptl_absorpt_correction_T_max  0.8808
_exptl_absorpt_correction_T_min  0.6720
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
The Ratio of minimum to maximum transmission is 0.7629.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.532
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       pyramid
_exptl_crystal_F_000             1688
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.460
_refine_diff_density_min         -1.045
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.936
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     436
_refine_ls_number_reflns         10613
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.936
_refine_ls_R_factor_all          0.0474
_refine_ls_R_factor_gt           0.0280
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0280P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0533
_refine_ls_wR_factor_ref         0.0582
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7973
_reflns_number_total             10613
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            W-bisimido.cif
_cod_data_source_block           17_12srv010
_cod_database_code               4515813
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.850
_shelx_estimated_absorpt_t_min   0.669
_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(H36A)=Uiso(H36B)=Uiso(H36C)=FVAR(3)
 Uiso(H37A)=Uiso(H37B)=Uiso(H37C)=FVAR(4)
 Uiso(H39A)=Uiso(H39B)=Uiso(H39C)=FVAR(5)
 Uiso(H40A)=Uiso(H40B)=Uiso(H40C)=FVAR(6)
3.a Rotating group:
 C1(H1A,H1B,H1C), C4(H4A,H4B,H4C), C36(H36A,H36B,H36C), C37(H37A,H37B,H37C),
 C39(H39A,H39B,H39C), C40(H40A,H40B,H40C)
3.b Ternary CH refined with riding coordinates:
 C35(H35), C38(H38)
3.c Secondary CH2 refined with riding coordinates:
 C2(H2A,H2B), C3(H3A,H3B)
3.d Aromatic/amide H refined with riding coordinates:
 C7(H7), C9(H9), C12(H12), C13(H13), C14(H14), C15(H15), C16(H16), C18(H18),
 C19(H19), C20(H20), C21(H21), C22(H22), C24(H24), C25(H25), C26(H26), C27(H27),
  C28(H28), C31(H31), C32(H32), C33(H33)
;
_shelx_res_checksum              53984
_shelx_hkl_checksum              93989
_olex2_submission_special_instructions 'No special instructions were received'