2,3-Dihydro-1λ^6^,2-benzothiazine-1,1,4-trione
Aman, Farhana; Siddiqui, Waseeq Ahmad; Ashraf, Adnan; Tahir, M. Nawaz; Acta Crystallographica Section E 68 (2012) o1306–; doi:10.1107/S1600536812013827

data_2234626
_publ_section_title
;
 2,3-Dihydro-1\l^6^,2-benzothiazine-1,1,4-trione
;
_journal_coeditor_code           HB6713
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1306
_journal_paper_doi               10.1107/S1600536812013827
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C8 H7 N O3 S'
_chemical_formula_moiety         'C8 H7 N O3 S'
_chemical_formula_sum            'C8 H7 N O3 S'
_chemical_formula_weight         197.21
_chemical_name_systematic
;
2,3-Dihydro-1\l^6^,2-benzothiazine-1,1,4-trione
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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
_cell_angle_beta                 113.2140(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4950(4)
_cell_length_b                   13.7560(5)
_cell_length_c                   7.6677(3)
_cell_measurement_reflns_used    1692
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      2.61
_cell_volume                     823.48(6)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009)'
_computing_publication_material
;
WinGX (Farrugia, 1999) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 7.50
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       \w
_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  0.0222
_diffrn_reflns_av_sigmaI/netI    0.0222
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            7644
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.61
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.362
_exptl_absorpt_correction_T_max  0.938
_exptl_absorpt_correction_T_min  0.915
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.591
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.370
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     121
_refine_ls_number_reflns         2017
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0435
_refine_ls_R_factor_gt           0.0358
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0455P)^2^+0.3408P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0928
_refine_ls_wR_factor_ref         0.0978
_reflns_number_gt                1692
_reflns_number_total             2017
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6713.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2234626
_cod_database_fobs_code          2234626