9-(4-Chlorophenyl)-4a-hydroxy-4,4a,5,6,9,9a-hexahydro-3<i>H</i>-xanthene-1,8(2<i>H</i>,7<i>H</i>)-dione
Yang, Yan; Lu, Weicheng; Lian, Chaomei; Zhu, Yulin; Acta Crystallographica Section E 67 (2011) o2386–; doi:10.1107/S1600536811031977

data_2231393
_publ_section_title
;
 9-(4-Chlorophenyl)-4a-hydroxy-4,4a,5,6,9,9a-hexahydro-3<i>H</i>-xanthene-1,8(2<i>H</i>,7<i>H</i>)-dione
;
_journal_coeditor_code           AA2018
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2386
_journal_paper_doi               10.1107/S1600536811031977
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C19 H19 Cl O4'
_chemical_formula_moiety         'C19 H19 Cl O4'
_chemical_formula_sum            'C19 H19 Cl O4'
_chemical_formula_weight         346.79
_chemical_name_systematic
;
9-(4-Chlorophenyl)-4a-hydroxy-4,4a,5,6,9,9a-hexahydro-3<i>H</i>-xanthene-
1,8(2<i>H</i>,7<i>H</i>)-dione
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 110.3070(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   25.076(3)
_cell_length_b                   12.7715(13)
_cell_length_c                   11.3825(11)
_cell_measurement_reflns_used    1769
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      20.25
_cell_measurement_theta_min      2.41
_cell_volume                     3418.8(6)
_computing_cell_refinement       '<i>SAINT</i> (Bruker, 2004)'
_computing_data_collection       '<i>APEX2</i> (Bruker, 2004)'
_computing_data_reduction        '<i>SAINT</i> (Bruker, 2004)'
_computing_molecular_graphics    '<i>SHELXTL</i> (Sheldrick, 2008)'
_computing_publication_material  '<i>SHELXTL</i> (Sheldrick, 2008)'
_computing_structure_refinement  '<i>SHELXL97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEXII 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  0.0346
_diffrn_reflns_av_sigmaI/netI    0.0418
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8674
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.73
_exptl_absorpt_coefficient_mu    0.243
_exptl_absorpt_correction_T_max  0.9645
_exptl_absorpt_correction_T_min  0.9307
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.169
_refine_diff_density_min         -0.218
_refine_ls_extinction_coef       0.0007(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     '<i>SHELXL97</i> (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         3095
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0756
_refine_ls_R_factor_gt           0.0415
_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^)+(0.0479P)^2^+0.6651P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0948
_refine_ls_wR_factor_ref         0.1105
_reflns_number_gt                1984
_reflns_number_total             3095
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            aa2018.cif
_cod_data_source_block           I
_cod_original_cell_volume        3418.7(6)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2231393
_cod_database_fobs_code          2231393