Spontaneous resolution upon crystallization of allenyl-bis-phosphine oxides
G. Gangadhararao; R. N. Prasad Tulichala; K. C. Kumara Swamy; Chem.Commun. 51 (2015) 7168–; doi:10.1039/C5cc00232J

data_7116981
_publ_section_title
;
 Spontaneous resolution upon crystallization of allenyl-bis-phosphine
 oxides
;
_journal_name_full               Chem.Commun.
_journal_page_first              7168
_journal_paper_doi               10.1039/C5cc00232J
_journal_volume                  51
_journal_year                    2015
_chemical_formula_sum            'C39 H29 N O3 P2'
_chemical_formula_weight         621.57
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_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-97
_audit_update_record
;
2014-12-30 deposited with the CCDC.
2015-03-17 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.2790(6)
_cell_length_b                   16.1962(8)
_cell_length_c                   17.5843(9)
_cell_measurement_reflns_used    4805
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.7963
_cell_measurement_theta_min      2.9317
_cell_volume                     3212.2(3)
_computing_cell_refinement       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_collection       'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_data_reduction        'CrysAlisPro, Oxford Diffraction Ltd.'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0219
_diffrn_reflns_av_sigmaI/netI    0.0430
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8256
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.94
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count 'not applicable'
_diffrn_standards_interval_time  'not applicable'
_diffrn_standards_number         'not applicable'
_exptl_absorpt_coefficient_mu    0.175
_exptl_absorpt_correction_T_max  0.9759
_exptl_absorpt_correction_T_min  0.9593
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'CrysAlisPro, Oxford Diffraction Ltd.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1296
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.770
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.03(9)
_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     406
_refine_ls_number_reflns         5347
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0513
_refine_ls_R_factor_gt           0.0421
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0650P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1054
_refine_ls_wR_factor_ref         0.1120
_reflns_number_gt                4682
_reflns_number_total             5347
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc00232j2.cif
_cod_data_source_block           compound-5
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7116981