Quaternary and quinary molecular solids based on structural inequivalence and combinatorial approaches: 2-nitroresorcinol and 4,6-dichlororesorcinol
Rajkumar, Madhu; Desiraju, Gautam R.; IUCrJ 8 (2021) 178–185; doi:10.1107/S2052252520016589

data_1560049
_publ_section_title
;
 Quaternary and quinary molecular solids based on structural inequivalence
 and combinatorial approaches: 2-nitroresorcinol and
 4,6-dichlororesorcinol
;
_journal_issue                   2
_journal_name_full               IUCrJ
_journal_page_first              178
_journal_page_last               185
_journal_paper_doi               10.1107/S2052252520016589
_journal_volume                  8
_journal_year                    2021
_chemical_formula_sum            'C18 H15 N3 O4'
_chemical_formula_weight         337.33
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                90
_cell_angle_beta                 92.337(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.9122(13)
_cell_length_b                   7.4259(5)
_cell_length_c                   12.1765(8)
_cell_measurement_reflns_used    13763
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      3.2
_cell_volume                     1618.30(19)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku Mercury375R (2x2 bin mode)'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0403
_diffrn_reflns_av_unetI/netI     0.0333
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16284
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.481
_diffrn_reflns_theta_min         3.214
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.818
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.385
_exptl_crystal_description       Block
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.249
_refine_diff_density_min         -0.261
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3707
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0563
_refine_ls_R_factor_gt           0.0425
_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^)+(0.0487P)^2^+0.5466P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1008
_refine_ls_wR_factor_ref         0.1078
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2933
_reflns_number_total             3707
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            yc5029.cif
_cod_data_source_block           9NRES-DPE-II
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/IUCr/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 1560041--1560072.cif.
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               1560049
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.980
_shelx_estimated_absorpt_t_max   0.980
_shelx_res_checksum              13331
_shelx_hkl_checksum              97322