Solvent-triggered breakdown of solid solution behaviour enables direct enantioselective crystallization of <i>RS</i>-phenprocoumon.
Jiang, Yihua; Souare, Sokhna; Robeyns, Koen; Leng, Fucheng; Collard, Laurent; Leyssens, Tom; Chemical communications (Cambridge, England) 62 (2026) 6613–6616; doi:10.1039/d6cc00933f

data_7135577
_publ_section_title
;
 Solvent-triggered breakdown of solid solution behaviour enables direct
 enantioselective crystallization of <i>RS</i>-phenprocoumon.
;
_journal_issue                   24
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              6613
_journal_page_last               6616
_journal_paper_doi               10.1039/d6cc00933f
_journal_volume                  62
_journal_year                    2026
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C20 H25 N2 O2, C18 H15 O3, C18 H16 O3'
_chemical_formula_sum            'C56 H56 N2 O8'
_chemical_formula_weight         885.02
_chemical_name_common            'Quinidine Phenprocoumon Ethyl acetate solvate'
_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'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2026-02-10 deposited with the CCDC.	2026-03-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.8974(3)
_cell_length_b                   12.6796(4)
_cell_length_c                   38.5083(17)
_cell_measurement_reflns_used    5484
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.3470
_cell_measurement_theta_min      2.5710
_cell_volume                     4832.6(3)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_collection       MAR
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_molecular_graphics    'MERCURY (Macrae et al., 2008)'
_computing_publication_material
;
'MERCURY (Macrae et al., 2008), Platon (Spek, 2009)'
;
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'MAR345 image plate'
_diffrn_measurement_method
;
'240 images, \D\F 0.75\% '
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0847
_diffrn_reflns_av_unetI/netI     0.0659
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       41
_diffrn_reflns_limit_l_min       -41
_diffrn_reflns_number            24268
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        22.722
_diffrn_reflns_theta_max         22.722
_diffrn_reflns_theta_min         2.611
_diffrn_source                   'Incoatec microfocus source'
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78763
_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    1.216
_exptl_crystal_description       'tick plate'
_exptl_crystal_F_000             1880
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Ethyl acetate'
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.623
_refine_diff_density_min         -0.305
_refine_diff_density_rms         0.070
_refine_ls_abs_structure_details
;
 Flack x determined using 1727 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.5(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.187
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     781
_refine_ls_number_reflns         6499
_refine_ls_number_restraints     528
_refine_ls_restrained_S_all      1.187
_refine_ls_R_factor_all          0.1057
_refine_ls_R_factor_gt           0.0858
_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^)+(0.0800P)^2^+6.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2082
_refine_ls_wR_factor_ref         0.2219
_reflns_Friedel_coverage         0.763
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                5148
_reflns_number_total             6499
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6cc00933f2.cif
_cod_data_source_block           yj_Qd_phenproEA
_cod_depositor_comments
'Adding full bibliography for 7135572--7135577.cif.'
_cod_database_code               7135577
_shelx_shelxl_version_number     2019/3
_shelx_res_checksum              72270
_shelx_hkl_checksum              27950