9,9-Dimethyl-12-phenyl-8,9-dihydro-12<i>H</i>-benzo[<i>a</i>]xanthen-11(10<i>H</i>)-one
Zhang, Yong; Zang, Hong-Jun; Cheng, Bo-Wen; Acta Crystallographica Section E 65 (2009) o3020–; doi:10.1107/S1600536809046157

data_2224421
_publ_section_title
9,9-Dimethyl-12-phenyl-8,9-dihydro-12<i>H</i>-benzo[<i>a</i>]xanthen-11(10<i>H</i>)-one
_journal_coeditor_code           RZ2384
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o3020
_journal_paper_doi               10.1107/S1600536809046157
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C25 H22 O2'
_chemical_formula_moiety         'C25 H22 O2'
_chemical_formula_sum            'C25 H22 O2'
_chemical_formula_weight         354.43
_chemical_name_systematic
;
9,9-Dimethyl-12-phenyl-8,9-dihydro-12<i>H</i>-benzo[<i>a</i>]xanthen-
11(10<i>H</i>)-one
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                72.78(3)
_cell_angle_beta                 80.82(3)
_cell_angle_gamma                62.17(2)
_cell_formula_units_Z            2
_cell_length_a                   9.1881(18)
_cell_length_b                   9.2317(18)
_cell_length_c                   12.866(3)
_cell_measurement_reflns_used    2907
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.849
_cell_measurement_theta_min      2.507
_cell_volume                     921.5(4)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_collection       'CrystalClear (Rigaku/MSC, 2005)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 2005)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Rigaku Saturn CCD area-detector'
_diffrn_measurement_method       '\w and \f'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0270
_diffrn_reflns_av_sigmaI/netI    0.0510
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8318
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.85
_diffrn_reflns_theta_min         2.51
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.9890
_exptl_absorpt_correction_T_min  0.9843
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrystalClear; Rigaku/MSC, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             376
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.266
_refine_diff_density_min         -0.259
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.968
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         4294
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.968
_refine_ls_R_factor_all          0.0579
_refine_ls_R_factor_gt           0.0395
_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^)+(0.0691P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1057
_refine_ls_wR_factor_ref         0.1137
_reflns_number_gt                2797
_reflns_number_total             4294
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            rz2384.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        921.6(3)
_cod_database_code               2224421
_cod_database_fobs_code          2224421