Chains or rings? Polymorphism of an isoniazid derivative derivatized with diacetone alcohol
Scheepers, Matthew C.; Fernandes, Manuel A.; Lemmerer, Andreas; RSC Advances 12 (2022) 11658–11664; doi:10.1039/D2RA02057B

data_7244789
_publ_section_title
;
 Chains or rings? Polymorphism of an isoniazid derivative derivatized with
 diacetone alcohol
;
_journal_issue                   19
_journal_name_full               'RSC Advances'
_journal_page_first              11658
_journal_page_last               11664
_journal_paper_doi               10.1039/D2RA02057B
_journal_volume                  12
_journal_year                    2022
_chemical_formula_moiety         'C12 H17 N3 O2'
_chemical_formula_sum            'C12 H17 N3 O2'
_chemical_formula_weight         235.28
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   dual
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4.5
_audit_creation_date             2021-09-02T14:28:22-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2022-01-10 deposited with the CCDC.	2022-04-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 116.465(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   21.8108(4)
_cell_length_b                   7.0776(2)
_cell_length_c                   18.1625(5)
_cell_measurement_reflns_used    3359
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      20.16
_cell_measurement_theta_min      2.44
_cell_measurement_wavelength     0.71073
_cell_volume                     2509.90(13)
_computing_molecular_graphics    'Ortep for Windows (Farrugia, 2012)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT-2018/2 (Sheldrick, 2015)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.956
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1191
_diffrn_reflns_av_unetI/netI     0.0858
_diffrn_reflns_Laue_measured_fraction_full 0.956
_diffrn_reflns_Laue_measured_fraction_max 0.967
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            37052
_diffrn_reflns_point_group_measured_fraction_full 0.956
_diffrn_reflns_point_group_measured_fraction_max 0.967
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.42
_diffrn_reflns_theta_min         2.086
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.245
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1008
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.255
_exptl_crystal_size_mid          0.184
_exptl_crystal_size_min          0.152
_refine_diff_density_max         0.217
_refine_diff_density_min         -0.218
_refine_diff_density_rms         0.06
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.863
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     165
_refine_ls_number_reflns         3065
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.863
_refine_ls_R_factor_all          0.0933
_refine_ls_R_factor_gt           0.0452
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0527P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0978
_refine_ls_wR_factor_ref         0.1115
_reflns_Friedel_coverage         0
_reflns_number_gt                1696
_reflns_number_total             3065
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2ra02057b4.cif
_cod_data_source_block           iz4h4m2pFormI
_cod_original_cell_volume        2509.90(12)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7244789
_shelx_estimated_absorpt_t_min   0.978
_shelx_estimated_absorpt_t_max   0.987
_shelx_res_checksum              35482