4-Chlorophenyl 2-oxo-2<i>H</i>-chromene-3-carboxylate
Guo, Xiao-Qiang; Yan, Jun; Gan, Ya; Song, Qin; Gou, Xiao-Jun; Acta Crystallographica Section E 68 (2012) o574–; doi:10.1107/S1600536812003376

data_2234042
_publ_section_title
;
 4-Chlorophenyl 2-oxo-2<i>H</i>-chromene-3-carboxylate
;
_journal_coeditor_code           XU5453
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o574
_journal_paper_doi               10.1107/S1600536812003376
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C16 H9 Cl O4'
_chemical_formula_moiety         'C16 H9 Cl O4'
_chemical_formula_sum            'C16 H9 Cl O4'
_chemical_formula_weight         300.68
_chemical_name_systematic
;
4-Chlorophenyl 2-oxo-2<i>H</i>-chromene-3-carboxylate
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 113.037(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.7586(6)
_cell_length_b                   7.0694(2)
_cell_length_c                   12.7167(6)
_cell_measurement_reflns_used    1865
_cell_measurement_temperature    135.0(10)
_cell_measurement_theta_max      29.0380
_cell_measurement_theta_min      3.1977
_cell_volume                     1303.71(10)
_computing_cell_refinement       'CrysAlis PRO (Agilent, 2011)'
_computing_data_collection       'CrysAlis PRO (Agilent, 2011)'
_computing_data_reduction        'CrysAlis PRO (Agilent, 2011)'
_computing_molecular_graphics    'OLEX2 (Dolomanov <i>et al.</i>, 2009)'
_computing_publication_material  'OLEX2 (Dolomanov <i>et al.</i>, 2009)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      135.0(10)
_diffrn_detector_area_resol_mean 16.0874
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Agilent Xcalibur Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.0246
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5907
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         3.20
_exptl_absorpt_coefficient_mu    0.306
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.99
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis PRO; Agilent, 2011)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.532
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.246
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         2662
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0584
_refine_ls_R_factor_gt           0.0401
_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^)+(0.0338P)^2^+0.3053P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0823
_refine_ls_wR_factor_ref         0.0923
_reflns_number_gt                2059
_reflns_number_total             2662
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            xu5453.cif
_cod_data_source_block           I
_cod_original_cell_volume        1303.70(9)
_cod_database_code               2234042
_cod_database_fobs_code          2234042