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_7116985
_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            'C42 H32 Br Cl6 N O4 P2'
_chemical_formula_weight         969.24
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_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                86.833(5)
_cell_angle_beta                 75.632(5)
_cell_angle_gamma                87.590(5)
_cell_formula_units_Z            2
_cell_length_a                   11.5145(7)
_cell_length_b                   13.3968(8)
_cell_length_c                   14.6374(9)
_cell_measurement_reflns_used    4661
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.2440
_cell_measurement_theta_min      3.4430
_cell_volume                     2183.0(2)
_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 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0376
_diffrn_reflns_av_sigmaI/netI    0.0657
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            14094
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.88
_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    1.424
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.31030
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Oxford Diffraction Ltd.'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.475
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             980
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: '
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         1.212
_refine_diff_density_min         -0.905
_refine_diff_density_rms         0.096
_refine_ls_extinction_coef       0.031(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     507
_refine_ls_number_reflns         7681
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.1053
_refine_ls_R_factor_gt           0.0729
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1157P)^2^+3.2420P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2028
_refine_ls_wR_factor_ref         0.2226
_reflns_number_gt                5332
_reflns_number_total             7681
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5cc00232j2.cif
_cod_data_source_block           compound-11
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7116985