Versatile solid forms of boscalid: insight into the crystal structures and phase transformations
Li, Zhonghua; Jia, Lina; Shi, Peng; Jiang, Shuang; Gong, Junbo; Wu, Songgu; CrystEngComm  (2019) –; doi:10.1039/C9CE00306A

data_7233914
_publ_section_title
;
 Versatile solid forms of boscalid: insight into the crystal structures
 and phase transformations
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C9CE00306A
_journal_year                    2019
_chemical_formula_moiety         'C18 H12 Cl2 N2 O, C2 H4 O'
_chemical_formula_sum            'C20 H16 Cl2 N2 O2'
_chemical_formula_weight         387.25
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2017-07-12
_audit_creation_method
;
Olex2 1.2
(compiled 2017.03.28 svn.r3405 for OlexSys, GUI svn.r5337)
;
_audit_update_record
;
2019-03-03 deposited with the CCDC.    2019-09-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.21(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.284(3)
_cell_length_b                   20.468(4)
_cell_length_c                   7.4983(15)
_cell_measurement_reflns_used    7119
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.56
_cell_measurement_theta_min      3.20
_cell_volume                     1874.2(7)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'RIGAKU R-AXIS RAPID IP'
_diffrn_measurement_method       'Rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0666
_diffrn_reflns_av_unetI/netI     0.0617
_diffrn_reflns_Laue_measured_fraction_full 0.970
_diffrn_reflns_Laue_measured_fraction_max 0.957
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            16514
_diffrn_reflns_point_group_measured_fraction_full 0.970
_diffrn_reflns_point_group_measured_fraction_max 0.957
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.479
_diffrn_reflns_theta_min         3.202
_exptl_absorpt_coefficient_mu    0.363
_exptl_absorpt_correction_T_max  0.9476
_exptl_absorpt_correction_T_min  0.9148
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.372
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.241
_refine_diff_density_min         -0.241
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.0089(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         4112
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.1253
_refine_ls_R_factor_gt           0.0660
_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^)+(0.0263P)^2^+1.2657P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1016
_refine_ls_wR_factor_ref         0.1243
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2477
_reflns_number_total             4112
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce00306a2.cif
_cod_data_source_block           b_CCDC3
_cod_original_cell_volume        1874.3(7)
_cod_database_code               7233914
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.948
_shelx_estimated_absorpt_t_min   0.915
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
2.a Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C20(H20A,H20B)
2.b Aromatic/amide H refined with riding coordinates:
 C11(H11), C1(H1), C5(H5), C8(H8), C2(H2), C10(H10), C18(H18), C4(H4), C9(H9),
 C17(H17), C16(H16), N1(H21)
;
_olex2_submission_special_instructions 'No special instructions were received'