Sterically hindered ortho-substituted phosphatriptycenes as configurationally stable P-chirogenic triarylphosphines.
Hu, Lei; Mahaut, Damien; Tumanov, Nikolay; Wouters, Johan; Collard, Laurent; Robiette, Raphaël; Berionni, Guillaume; Dalton transactions (Cambridge, England : 2003) 50 (2021) 4772–4777; doi:10.1039/d1dt00816a

data_7706857
_publ_section_title
;
 Sterically hindered ortho-substituted phosphatriptycenes as
 configurationally stable P-chirogenic triarylphosphines.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4772
_journal_page_last               4777
_journal_paper_doi               10.1039/d1dt00816a
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'C21 H16 Cl P'
_chemical_formula_sum            'C21 H16 Cl P'
_chemical_formula_weight         334.76
_chemical_name_common
6-chloro-1,4-dimethyl-10H-5,10-[1,2]benzenoacridophosphine
_chemical_name_systematic
6-chloro-1,4-dimethyl-10H-5,10-[1,2]benzenoacridophosphine
_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     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2021-02-08 deposited with the CCDC.	2021-03-15 downloaded from the CCDC.
;
_cell_angle_alpha                74.36(2)
_cell_angle_beta                 89.257(14)
_cell_angle_gamma                79.319(16)
_cell_formula_units_Z            8
_cell_length_a                   13.9870(17)
_cell_length_b                   16.009(4)
_cell_length_c                   16.436(4)
_cell_measurement_reflns_used    1162
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      19.6100
_cell_measurement_theta_min      2.8000
_cell_volume                     3480.0(13)
_computing_cell_refinement       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'MAR345 image plate'
_diffrn_radiation_monochromator  'Montel multilayer optics ELM33'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1473
_diffrn_reflns_av_unetI/netI     0.1111
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            17918
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        17.225
_diffrn_reflns_theta_max         17.225
_diffrn_reflns_theta_min         2.817
_diffrn_source                   'Incoatec I\mS microfocus source'
_exptl_absorpt_coefficient_mu    0.308
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.68868
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.278
_exptl_crystal_description       plate
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.140
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.270
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     887
_refine_ls_number_reflns         4206
_refine_ls_number_restraints     760
_refine_ls_restrained_S_all      0.966
_refine_ls_R_factor_all          0.1586
_refine_ls_R_factor_gt           0.0877
_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^)+(0.0827P)^2^+11.9855P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1992
_refine_ls_wR_factor_ref         0.2354
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2334
_reflns_number_total             4206
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt00816a2.cif
_cod_data_source_block           nt0893UCL_N_DAMA
_cod_depositor_comments
'Adding full bibliography for 7706848--7706861.cif.'
_cod_original_cell_volume        3480.1(13)
_cod_database_code               7706857
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.941
_shelx_estimated_absorpt_t_max   0.979
_shelx_res_checksum              29312
_shelx_hkl_checksum              19025