A family of cis-macrocyclic diphosphines: modular, stereoselective synthesis and application in catalytic CO2/ethylene coupling
Knopf, Ioana; Tofan, Daniel; Beetstra, Dirk; Al-Nezari, Abdulaziz; Al-Bahily, Khalid; Cummins, Christopher C.; Chem. Sci. 8 (2017) 1463–; doi:10.1039/C6SC03614G

data_1544280
_publ_section_title
;
 A family of cis-macrocyclic diphosphines: modular, stereoselective
 synthesis and application in catalytic CO2/ethylene coupling
;
_journal_issue                   2
_journal_name_full               'Chem. Sci.'
_journal_page_first              1463
_journal_paper_doi               10.1039/C6SC03614G
_journal_volume                  8
_journal_year                    2017
_chemical_formula_sum            'C27 H46 Ni O2 P2'
_chemical_formula_weight         523.29
_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
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2016-05-03 deposited with the CCDC.
2016-10-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.6408(9)
_cell_length_b                   12.6202(12)
_cell_length_c                   22.256(2)
_cell_measurement_reflns_used    9988
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.16
_cell_measurement_theta_min      2.30
_cell_volume                     2707.9(4)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2011)'
_computing_data_collection       'APEX2 v2011.4.0 (Bruker-AXS, 2011)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2011)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Bruker Smart APEX2 CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0392
_diffrn_reflns_av_unetI/netI     0.0614
_diffrn_reflns_Laue_measured_fraction_full 0.985
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10744
_diffrn_reflns_point_group_measured_fraction_full 0.830
_diffrn_reflns_point_group_measured_fraction_max 0.785
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.550
_diffrn_reflns_theta_min         1.830
_diffrn_source
'I\mS micro-focus sealed tube, multilayer optics'
_exptl_absorpt_coefficient_mu    0.856
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6035
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            gold
_exptl_crystal_density_diffrn    1.284
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1128
_exptl_crystal_size_max          0.380
_exptl_crystal_size_mid          0.130
_exptl_crystal_size_min          0.090
_refine_diff_density_max         1.163
_refine_diff_density_min         -0.785
_refine_diff_density_rms         0.083
_refine_ls_abs_structure_details
; 
 Flack x determined using 1151 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   -0.013(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     293
_refine_ls_number_reflns         4926
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.0610
_refine_ls_R_factor_gt           0.0477
_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^)+(0.0657P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1111
_refine_ls_wR_factor_ref         0.1182
_reflns_Friedel_coverage         0.435
_reflns_Friedel_fraction_full    0.626
_reflns_Friedel_fraction_max     0.545
_reflns_number_gt                4051
_reflns_number_total             4926
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6sc03614g2.cif
_cod_data_source_block           X8_15156
_cod_depositor_comments
'Adding full bibliography for 1544277--1544280.cif.'
_cod_original_cell_volume        2707.8(4)
_cod_database_code               1544280
_shelx_estimated_absorpt_t_min   0.737
_shelx_estimated_absorpt_t_max   0.927
_shelxl_version_number           2013-4
_shelx_res_checksum              35605