Crystal structure of 2-methyl-4-[(thiophen-2-yl)methylidene]-1,3-oxazol-5(4<i>H</i>)-one
Sharma, Preetika; Subbulakshmi, K. N.; Narayana, B.; Byrappa, K.; Kant, Rajni; Acta Crystallographica Section E 71 (2015) o123–o124; doi:10.1107/S2056989015000833

data_2240406
_publ_section_title
;
 Crystal structure of
 2-methyl-4-[(thiophen-2-yl)methylidene]-1,3-oxazol-5(4<i>H</i>)-one
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o123
_journal_page_last               o124
_journal_paper_doi               10.1107/S2056989015000833
_journal_volume                  71
_journal_year                    2015
_chemical_formula_iupac          'C9 H7 N O2 S'
_chemical_formula_moiety         'C9 H7 N O2 S'
_chemical_formula_sum            'C9 H7 N O2 S'
_chemical_formula_weight         193.22
_chemical_name_systematic
;
2-Methyl-4-[(thiophen-2-yl)methylidene]-1,3-oxazol-5(4<i>H</i>)-one
;
_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                 112.129(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.2264(11)
_cell_length_b                   9.8581(7)
_cell_length_c                   15.8735(13)
_cell_measurement_reflns_used    2325
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.2400
_cell_measurement_theta_min      4.1500
_cell_volume                     1772.3(3)
_computing_cell_refinement
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_data_collection
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_data_reduction
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 2012)
;
_computing_publication_material
;
PLATON (Spek, 2009)
;
_computing_structure_refinement
;
SHELXL97 (Sheldrick, 2015)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur Sapphire3'
_diffrn_measurement_method       '\w scans'
_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  0.0291
_diffrn_reflns_av_sigmaI/netI    0.0459
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            7052
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.86
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.327
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.84165
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis RED; Oxford Diffraction, 2010)
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.448
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.339
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         3472
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.0699
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0531P)^2^+0.4552P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1095
_refine_ls_wR_factor_ref         0.1256
_reflns_number_gt                2477
_reflns_number_total             3472
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            su5054sup1.cif
_cod_data_source_block           I
_cod_original_cell_volume        1772.3(2)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2240406
_cod_database_fobs_code          2240406