Exploration of Homogeneous Ethylene Dimerization Mediated by Tungsten Mono(imido) Complexes
Messinis, Antonis M.; Wright, William R. H.; Batsanov, Andrei S.; Howard, Judith A. K.; Hanton, Martin J.; Dyer, Philip W.; ACS Catalysis 8 (2018) 11235–; doi:10.1021/acscatal.8b02201

data_4515782
_publ_section_title
;
 Exploration of Homogeneous Ethylene Dimerization Mediated by Tungsten
 Mono(imido) Complexes
;
_journal_issue                   12
_journal_name_full               'ACS Catalysis'
_journal_page_first              11235
_journal_paper_doi               10.1021/acscatal.8b02201
_journal_volume                  8
_journal_year                    2018
_chemical_formula_moiety         'C24 H34 Cl8 N2 W2'
_chemical_formula_sum            'C24 H34 Cl8 N2 W2'
_chemical_formula_weight         1001.83
_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   geom
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   difmap
_audit_creation_date             2016-11-30
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2016.11.30 svn.r3356 for OlexSys, GUI svn.r5269)
;
_cell_angle_alpha                106.301(8)
_cell_angle_beta                 106.481(8)
_cell_angle_gamma                110.355(8)
_cell_formula_units_Z            1
_cell_length_a                   9.6082(6)
_cell_length_b                   9.7882(7)
_cell_length_c                   10.2905(6)
_cell_measurement_reflns_used    9907
_cell_measurement_temperature    120
_cell_measurement_theta_max      34.763
_cell_measurement_theta_min      2.277
_cell_volume                     788.82(14)
_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 2014/7 multi-CPU version (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS 2013/1 (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 0.999
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART 6000'
_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  0.0265
_diffrn_reflns_av_unetI/netI     0.0250
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.951
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            22919
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.951
_diffrn_reflns_theta_full        32.500
_diffrn_reflns_theta_max         34.979
_diffrn_reflns_theta_min         2.277
_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
_exptl_absorpt_coefficient_mu    7.982
_exptl_absorpt_correction_T_max  0.4756
_exptl_absorpt_correction_T_min  0.2685
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
SADABS-2009/1 (Bruker,2010) was used for absorption correction.
wR2(int) was 0.0800 before and 0.0414 after correction.
The Ratio of minimum to maximum transmission is 0.5646.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    2.109
_exptl_crystal_description       block
_exptl_crystal_F_000             476
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.464
_refine_diff_density_min         -1.843
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.239
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     171
_refine_ls_number_reflns         6611
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.239
_refine_ls_R_factor_all          0.0269
_refine_ls_R_factor_gt           0.0246
_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^)+3.4000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0632
_refine_ls_wR_factor_ref         0.0638
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6162
_reflns_number_total             6611
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs8b02201_si_002.cif
_cod_data_source_block           1g
_cod_original_cell_volume        788.82(11)
_cod_database_code               4515782
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Others
 Uiso(H8A)=Uiso(H8B)=Uiso(H8C)=FVAR(1)
 Uiso(H9A)=Uiso(H9B)=Uiso(H9C)=FVAR(2)
 Uiso(H11A)=Uiso(H11B)=Uiso(H11C)=FVAR(3)
 Uiso(H12A)=Uiso(H12B)=Uiso(H12C)=FVAR(4)
3.a Ternary CH refined with riding coordinates:
 C7(H7), C10(H10)
3.b Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5)
3.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C)
;
_shelx_res_checksum              51557