Quantitative crystal structure analysis of 1,3,4-thiadiazole derivatives
Panini, Piyush; Mohan, T. P.; Gangwar, Usma; Sankolli, Ravish; Chopra, Deepak; CrystEngComm 15 (2013) 4549–; doi:10.1039/c3ce40278a

data_7210149
_publ_section_title
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 Quantitative crystal structure analysis of 1,3,4-thiadiazole derivatives
;
_journal_issue                   22
_journal_name_full               CrystEngComm
_journal_page_first              4549
_journal_paper_doi               10.1039/c3ce40278a
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C21 H13 F2 N3 O2 S'
_chemical_formula_sum            'C21 H13 F2 N3 O2 S'
_chemical_formula_weight         409.40
_space_group_IT_number           15
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 106.079(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.5635(7)
_cell_length_b                   5.8117(2)
_cell_length_c                   32.1855(11)
_cell_measurement_temperature    294(2)
_cell_volume                     3696.0(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0316
_diffrn_reflns_av_sigmaI/netI    0.0314
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       37
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            15007
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.06
_exptl_absorpt_coefficient_mu    0.218
_exptl_absorpt_correction_T_max  0.9827
_exptl_absorpt_correction_T_min  0.9334
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.472
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1680
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.155
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         3225
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0628
_refine_ls_R_factor_gt           0.0416
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0482P)^2^+2.0705P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0970
_refine_ls_wR_factor_ref         0.1063
_reflns_number_gt                2414
_reflns_number_total             3225
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce40278a.txt
_cod_data_source_block           TDZ-2
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Empirical'
changed to 'empirical' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

data name '_iucr_refine_instruction_details' was replaced with
'_iucr_refine_instructions_details' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7210149