Three novel benzothiazine-fused triazoles as potential centrally acting muscle relaxants
Ravikumar, Krishnan; Sridhar, Balasubramanian; Hariharakrishnan, Venkatasubramanian; Singh, Awadesh Narain; Acta Crystallographica Section C 68 (2012) o475–o480; doi:10.1107/S0108270112040759

data_2018656
_publ_section_title
;
 Three novel benzothiazine-fused triazoles as potential centrally acting
 muscle relaxants
;
_journal_coeditor_code           SF3180
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o475
_journal_page_last               o480
_journal_paper_doi               10.1107/S0108270112040759
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C17 H13 N3 O2 S'
_chemical_formula_moiety         'C17 H13 N3 O2 S'
_chemical_formula_sum            'C17 H13 N3 O2 S'
_chemical_formula_weight         323.36
_chemical_name_systematic
;
2-(2-Oxo-2-phenylethyl)-4<i>H</i>-1,2,4-triazolo[3,4-
<i>c</i>][1,4]benzothiazin-1(2<i>H</i>)-one
;
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 102.564(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.6248(18)
_cell_length_b                   14.920(2)
_cell_length_c                   8.5909(13)
_cell_measurement_reflns_used    3459
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      24.75
_cell_measurement_theta_min      2.74
_cell_volume                     1454.3(4)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_molecular_graphics
;
DIAMOND (Brandenburg & Putz, 2005) and Mercury (Macrae <i>et al.</i>,
2008)
;
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device       'Bruker SMART APEX CCD area-detector'
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area-detector'
_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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0263
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            13803
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.79
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.236
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.477
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             672
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.292
_refine_diff_density_min         -0.148
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2562
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0549
_refine_ls_R_factor_gt           0.0455
_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^)+(0.0521P)^2^+0.4963P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1048
_refine_ls_wR_factor_ref         0.1104
_reflns_number_gt                2175
_reflns_number_total             2562
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sf3180.cif
_cod_data_source_block           II
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2018656
_cod_database_fobs_code          2018656