Regio- and stereo-selective polymerization of 1,3-butadiene catalyzed by phosphorus-nitrogen PN(3)-pincer cobalt(ii) complexes.
Gong, Dirong; Zhang, Xuequan; Huang, Kuo-Wei; Dalton transactions (Cambridge, England : 2003) 45 (2016) 19399–19407; doi:10.1039/c6dt03722d

data_7041176
_publ_section_title
;
 Regio- and stereo-selective polymerization of 1,3-butadiene catalyzed by
 phosphorus-nitrogen PN(3)-pincer cobalt(ii) complexes.
;
_journal_issue                   48
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              19399
_journal_page_last               19407
_journal_paper_doi               10.1039/c6dt03722d
_journal_volume                  45
_journal_year                    2016
_chemical_formula_moiety         'C22 H37 Br2 Co N4 P'
_chemical_formula_sum            'C22 H37 Br2 Co N4 P'
_chemical_formula_weight         607.27
_chemical_name_systematic
;
 ? 
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2016-10-15
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2016.09.09 svn.r3337 for OlexSys, GUI svn.r5227)
;
_audit_update_record
;
2016-10-24 deposited with the CCDC.
2016-11-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.5226(7)
_cell_length_b                   12.0510(6)
_cell_length_c                   19.2018(9)
_cell_measurement_reflns_used    2046
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      20
_cell_measurement_theta_min      2
_cell_volume                     2666.3(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0391
_diffrn_reflns_av_unetI/netI     0.0638
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            9476
_diffrn_reflns_point_group_measured_fraction_full 0.959
_diffrn_reflns_point_group_measured_fraction_max 0.948
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         2.712
_exptl_absorpt_coefficient_mu    3.717
_exptl_absorpt_correction_T_max  0.9086
_exptl_absorpt_correction_T_min  0.8573
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.513
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1236
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.653
_refine_diff_density_min         -0.742
_refine_diff_density_rms         0.080
_refine_ls_abs_structure_details
;
 Flack x determined using 1481 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.024(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         5164
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.0567
_refine_ls_R_factor_gt           0.0442
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0463P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0927
_refine_ls_wR_factor_ref         0.0991
_reflns_Friedel_coverage         0.684
_reflns_Friedel_fraction_full    0.908
_reflns_Friedel_fraction_max     0.883
_reflns_number_gt                4404
_reflns_number_total             5164
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6dt03722d2.cif
_cod_data_source_block           gdr-20120423-co2
_cod_depositor_comments
'Adding full bibliography for 7041173--7041176.cif.'
_cod_database_code               7041176
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C7(H7), C12(H12)
2.b Aromatic/amide H refined with riding coordinates:
 N2(H2A), C2(H2), C3(H3), C4(H4), C10(H10)
2.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C9(H9A,H9B,H9C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C),
 C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C20(H20A,H20B,
 H20C), C21(H21A,H21B,H21C), C22(H22A,H22B,H22C)
;
_shelx_res_checksum              11169
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'