Crystal structure of 3,3-dimethyl-3,4-dihydro-1H-benzo[c]chromene-1,6(2H)-dione, C15H14O3
Song, Rui; Zhou, Bo; Shao, Rui-Xin; Zeitschrift für Kristallographie - New Crystal Structures 232 (2017) 469–470; doi:10.1515/ncrs-2016-0322

data_8106572
_publ_section_title
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 Crystal structure of
 3,3-dimethyl-3,4-dihydro-1H-benzo[c]chromene-1,6(2H)-dione, C15H14O3
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_journal_issue                   3
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              469
_journal_page_last               470
_journal_paper_doi               10.1515/ncrs-2016-0322
_journal_volume                  232
_journal_year                    2017
_chemical_formula_sum            'C15 H14 O3'
_chemical_formula_weight         242.26
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_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                 105.3680(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.0972(11)
_cell_length_b                   11.1576(14)
_cell_length_c                   12.5933(16)
_cell_measurement_reflns_used    3429
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.62
_cell_measurement_theta_min      2.48
_cell_volume                     1232.6(3)
_computing_cell_refinement       'SMART (Bruker, 2007) [10]'
_computing_data_collection       'SMART (Bruker, 2007) [10]'
_computing_data_reduction        'SAINT (Bruker, 2007) [10]'
_computing_molecular_graphics    'Diamond 3.2i [12]'
_computing_publication_material  'SHELXL-2013 [11]'
_computing_structure_refinement  'SHELXL-2013 [11]'
_computing_structure_solution    'SHELXS-2013 [11]'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0187
_diffrn_reflns_av_sigmaI/netI    0.0157
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9045
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.32
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9813
_exptl_absorpt_correction_T_min  0.9656
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.127
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.033
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     165
_refine_ls_number_reflns         2292
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0507
_refine_ls_R_factor_gt           0.0393
_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^)+(0.0620P)^2^+0.1980P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1086
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                1814
_reflns_number_total             2292
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            suppl_ncrs-2016-0322_suppl.cif
_cod_data_source_block           a
_cod_depositor_comments
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The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Monoclinic' was changed to
'monoclinic' in accordance with the built-in table derived from the
CIF Core dictionary named 'cif_core.dic' version 2.4.5 last updated
on 2014-11-21.

Automatic conversion script
Id: cif_fix_values 8738 2021-04-28 16:35:53Z antanas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               8106572