2-(4-Chlorophenyl)imidazo[1,2-<i>a</i>]pyridine-3-carbaldehyde
Li, Yun-Hui; Liu, Wen-Yu; Gao, Yang; Wang, Yu-Peng; Acta Crystallographica Section E 65 (2009) o3192–; doi:10.1107/S1600536809048302

data_2224239
_publ_section_title
;
 2-(4-Chlorophenyl)imidazo[1,2-<i>a</i>]pyridine-3-carbaldehyde
;
_journal_coeditor_code           HB5204
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3192
_journal_paper_doi               10.1107/S1600536809048302
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C14 H9 Cl N2 O'
_chemical_formula_moiety         'C14 H9 Cl N2 O'
_chemical_formula_sum            'C14 H9 Cl N2 O'
_chemical_formula_weight         256.68
_chemical_name_systematic
;
2-(4-Chlorophenyl)imidazo[1,2-<i>a</i>]pyridine-3-carbaldehyde
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   21.3367(13)
_cell_length_b                   7.2391(4)
_cell_length_c                   15.1748(10)
_cell_measurement_reflns_used    4265
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.03
_cell_measurement_theta_min      1.91
_cell_volume                     2343.9(2)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        'SAINT (Bruker, 2002)'
_computing_molecular_graphics    'SHELXL97 (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX 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  0.0261
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            12428
_diffrn_reflns_theta_full        26.03
_diffrn_reflns_theta_max         26.03
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.311
_exptl_absorpt_correction_T_max  0.894
_exptl_absorpt_correction_T_min  0.870
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2002)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.455
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1056
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.215
_refine_diff_density_min         -0.179
_refine_ls_abs_structure_details 'Flack (1983), 1800 Friedel pairs'
_refine_ls_abs_structure_Flack   0.40(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     325
_refine_ls_number_reflns         4198
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0357
_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^)+(0.0461P)^2^+0.2155P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0828
_refine_ls_wR_factor_ref         0.0886
_reflns_number_gt                3564
_reflns_number_total             4198
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb5204.cif
_cod_data_source_block           I
_cod_database_code               2224239
_cod_database_fobs_code          2224239