Synthesis and characterization of aminopyridine iron(ii) chloride catalysts for isoprene polymerization: sterically controlled monomer enchainment.
Jing, Chuyang; Wang, Liang; Mahmood, Qaiser; Zhao, Mengmeng; Zhu, Guangqian; Zhang, Xianhui; Wang, Xiaowu; Wang, Qinggang; Dalton transactions (Cambridge, England : 2003) 48 (2019) 7862–7874; doi:10.1039/c9dt00452a

data_7701595
_publ_section_title
;
 Synthesis and characterization of aminopyridine iron(ii) chloride
 catalysts for isoprene polymerization: sterically controlled monomer
 enchainment.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              7862
_journal_page_last               7874
_journal_paper_doi               10.1039/c9dt00452a
_journal_volume                  48
_journal_year                    2019
_chemical_formula_sum            'C28 H32 Cl4 Fe2 N4'
_chemical_formula_weight         678.07
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-04-01 deposited with the CCDC.	2019-04-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 103.782(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.1785(13)
_cell_length_b                   9.3366(8)
_cell_length_c                   22.6274(18)
_cell_measurement_reflns_used    2063
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      22.366
_cell_measurement_theta_min      2.582
_cell_volume                     3114.3(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0451
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            7713
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.020
_diffrn_reflns_theta_max         25.020
_diffrn_reflns_theta_min         2.582
_exptl_absorpt_coefficient_mu    1.299
_exptl_absorpt_correction_T_max  0.8811
_exptl_absorpt_correction_T_min  0.8191
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.446
_exptl_crystal_description       block
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.160
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.337
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     189
_refine_ls_number_reflns         2739
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0339
_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^)+(0.0236P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0659
_refine_ls_wR_factor_ref         0.0715
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1864
_reflns_number_total             2739
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00452a2.cif
_cod_data_source_block           1884672
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7701595
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.819
_shelx_estimated_absorpt_t_max   0.881
_shelx_res_checksum              85653