Solvent selection as a major determinant of chiral resolution outcomes: The BINOL-DACH case study
de Meester, Joséphine; Shemchuk, Oleksii; Collard, Laurent; Wouters, Johan; Robeyns, Koen; Leyssens, Tom; CrystEngComm  (2025) –; doi:10.1039/D5CE00706B

data_7251195
_publ_section_title
;
 Solvent selection as a major determinant of chiral resolution outcomes:
 The BINOL-DACH case study
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/D5CE00706B
_journal_year                    2025
_chemical_formula_moiety         'C20 H14 O2, 0.5(C4 H8 O2), C6 H14 N2'
_chemical_formula_sum            'C28 H32 N2 O3'
_chemical_formula_weight         444.55
_chemical_name_common            'BINOL +  DACH comme synonyms'
_chemical_name_systematic
'1,1'-bi-2-naphtol + trans-cyclohexane-1,2-diamine'
_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   mixed
_atom_sites_solution_primary     'dual space'
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2025-07-06 deposited with the CCDC.	2025-10-29 downloaded from the CCDC.
;
_cell_angle_alpha                96.026(9)
_cell_angle_beta                 95.209(10)
_cell_angle_gamma                102.224(9)
_cell_formula_units_Z            2
_cell_length_a                   8.1693(10)
_cell_length_b                   9.2052(9)
_cell_length_c                   16.684(2)
_cell_measurement_reflns_used    3710
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      26.5270
_cell_measurement_theta_min      3.1250
_cell_volume                     1211.1(2)
_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-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'MAR345 image plate'
_diffrn_measurement_method
;
'100 images, \D\F 2.0\% '
'100 images, \D\F 2.0\% (2nd orientation)'
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0258
_diffrn_reflns_av_unetI/netI     0.0188
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.973
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            18971
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.973
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.565
_diffrn_reflns_theta_min         2.977
_diffrn_source                   'Incoatec microfocus source'
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94746
_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    1.219
_exptl_crystal_description       rod
_exptl_crystal_F_000             476
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent: EtOAc'
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.152
_refine_diff_density_rms         0.030
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4925
_refine_ls_number_restraints     46
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0544
_refine_ls_R_factor_gt           0.0454
_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^)+(0.0508P)^2^+0.3517P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1183
_refine_ls_wR_factor_ref         0.1239
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4085
_reflns_number_total             4925
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5ce00706b2.cif
_cod_data_source_block           alex_B_DAC_EtOAc
_cod_database_code               7251195
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              34730