2-Ethyl-6-(4-methoxyphenyl)imidazo[2,1-<i>b</i>][1,3,4]thiadiazole-5-carbaldehyde
Noor Shahina Begum; D. E. Vasundhara; G. D. Kolavi; I. M. Khazi; Acta Crystallographica Section E 63 (2007) o1955–o1957; doi:10.1107/S1600536807012639

data_2212988
_publ_section_title
2-Ethyl-6-(4-methoxyphenyl)imidazo[2,1-<i>b</i>][1,3,4]thiadiazole-5-carbaldehyde
_journal_coeditor_code           SA2045
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1955
_journal_page_last               o1957
_journal_paper_doi               10.1107/S1600536807012639
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C14 H13 N3 O2 S'
_chemical_formula_sum            'C14 H13 N3 O2 S'
_chemical_formula_weight         287.33
_chemical_name_systematic
;
2-Ethyl-6-(4-methoxyphenyl)imidazo[2,1-b][1,3,4]thiadiazole-5-carbaldehyde
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                113.559(3)
_cell_angle_beta                 91.246(3)
_cell_angle_gamma                109.417(3)
_cell_formula_units_Z            2
_cell_length_a                   7.6931(15)
_cell_length_b                   9.7197(19)
_cell_length_c                   10.492(2)
_cell_measurement_reflns_used    15
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      8.02
_cell_measurement_theta_min      6.9
_cell_volume                     667.3(2)
_computing_cell_refinement       'SAINT-Plus (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT-Plus
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0185
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6646
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         2.15
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.247
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.43
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             300
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.224
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         2439
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_gt           0.036
_refine_ls_shift/su_max          0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0621P)^2^+0.1442P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0999
_reflns_number_gt                2124
_reflns_number_total             2439
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sa2045.cif
_cod_data_source_block           I
_cod_database_code               2212988