Syntheses of, and structural studies on, benzo-fused 1,2,4-thiadiazines
Clark, Ewan R.; Hayward, John J.; Leontowicz, Bryce J.; Eisler, Dana J.; Rawson, Jeremy M.; CrystEngComm 16 (2014) 1755–; doi:10.1039/c3ce42205d

data_7214074
_publ_section_title
;
 Syntheses of, and structural studies on, benzo-fused 1,2,4-thiadiazines
;
_journal_issue                   9
_journal_name_full               CrystEngComm
_journal_page_first              1755
_journal_paper_doi               10.1039/c3ce42205d
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C14 H12 N2 O S'
_chemical_formula_sum            'C14 H12 N2 O S'
_chemical_formula_weight         256.32
_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                90.00
_cell_angle_beta                 95.68(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   24.399(5)
_cell_length_b                   5.2540(11)
_cell_length_c                   9.3849(19)
_cell_measurement_reflns_used    45190
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.02
_cell_volume                     1197.2(4)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_reduction
;
 HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0758
_diffrn_reflns_av_sigmaI/netI    0.0755
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            6829
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.36
_exptl_absorpt_coefficient_mu    0.258
_exptl_absorpt_correction_T_max  0.992
_exptl_absorpt_correction_T_min  0.714
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.422
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.362
_refine_diff_density_min         -0.279
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.984
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         2090
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.984
_refine_ls_R_factor_all          0.0941
_refine_ls_R_factor_gt           0.0557
_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^)+(0.0908P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1344
_refine_ls_wR_factor_ref         0.1544
_reflns_number_gt                1370
_reflns_number_total             2090
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce42205d.txt
_cod_data_source_block           compound_8
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7214074