4-Hydroxy-2-methyl-3,4-diphenylcyclopent-2-en-1-one
Raza, Abdul Rauf; Sultan, Aeysha; Tahir, M. Nawaz; Acta Crystallographica Section E 66 (2010) o1465–; doi:10.1107/S1600536810019112

data_2226329
_publ_section_title
;
 4-Hydroxy-2-methyl-3,4-diphenylcyclopent-2-en-1-one
;
_journal_coeditor_code           WM2348
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1465
_journal_paper_doi               10.1107/S1600536810019112
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C18 H16 O2'
_chemical_formula_moiety         'C18 H16 O2'
_chemical_formula_sum            'C18 H16 O2'
_chemical_formula_weight         264.31
_chemical_name_systematic
;
4-Hydroxy-2-methyl-3,4-diphenylcyclopent-2-en-1-one
;
_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
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   12.5098(4)
_cell_length_b                   13.1453(5)
_cell_length_c                   17.5292(7)
_cell_measurement_reflns_used    1864
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.95
_cell_measurement_theta_min      2.28
_cell_volume                     2882.59(18)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics
'ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009)'
_computing_publication_material
;
WinGX (Farrugia, 1999) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 7.50
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker Kappa APEXII CCD'
_diffrn_measurement_method       \w-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  0.0435
_diffrn_reflns_av_sigmaI/netI    0.0492
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            14465
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         2.25
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.979
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.218
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.177
_refine_diff_density_min         -0.208
_refine_ls_goodness_of_fit_ref   0.994
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     365
_refine_ls_number_reflns         3529
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0892
_refine_ls_R_factor_gt           0.0479
_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^)+(0.0593P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0980
_refine_ls_wR_factor_ref         0.1145
_reflns_number_gt                2258
_reflns_number_total             3529
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            wm2348.cif
_cod_data_source_block           I
_cod_database_code               2226329
_cod_database_fobs_code          2226329