6-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-triazolo[3,4-<i>b</i>][1,3,4]thiadiazole
Du, Hai-Tang; Du, Hai-Jun; Zhou, Weiyi; Acta Crystallographica Section E 64 (2008) o2040–; doi:10.1107/S1600536808030936

data_2219525
_publ_section_title
6-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-triazolo[3,4-<i>b</i>][1,3,4]thiadiazole
_journal_coeditor_code           BX2183
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2040
_journal_paper_doi               10.1107/S1600536808030936
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C19 H18 N4 O3 S'
_chemical_formula_moiety         'C19 H18 N4 O3 S'
_chemical_formula_sum            'C19 H18 N4 O3 S'
_chemical_formula_weight         382.43
_chemical_melting_point          461
_chemical_name_systematic
;
6-(4-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-
triazolo[3,4-<i>b</i>][1,3,4]thiadiazole
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 100.52(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2613(15)
_cell_length_b                   18.519(4)
_cell_length_c                   13.314(3)
_cell_measurement_reflns_used    4938
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.896
_cell_measurement_theta_min      2.199
_cell_volume                     1760.3(7)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_collection       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      113(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Rigaku Saturn'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0297
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12668
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         2.20
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.213
_exptl_absorpt_correction_T_max  0.9749
_exptl_absorpt_correction_T_min  0.9586
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku/MSC, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.443
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.255
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         4184
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.061
_refine_ls_R_factor_all          0.0392
_refine_ls_R_factor_gt           0.0336
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0558P)^2^+0.2342P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.0944
_reflns_number_gt                3593
_reflns_number_total             4184
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bx2183.cif
_cod_data_source_block           I
_cod_original_cell_volume        1760.2(6)
_cod_original_sg_symbol_H-M      'P 2(1)/n'
_cod_database_code               2219525
_cod_database_fobs_code          2219525