9-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-3,3-dimethyl-2,3,4,9-tetrahydro-1<i>H</i>-xanthen-1-one
Kurbanova, Malahat M.; Gurbanov, Atash V.; Mahmudov, Kamran T.; Maharramov, Abel M.; Ng, Seik Weng; Acta Crystallographica Section E 68 (2012) o1606–; doi:10.1107/S1600536812018934

data_2235335
_publ_section_title
;
 9-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-3,3-dimethyl-2,3,4,9-tetrahydro-1<i>H</i>-xanthen-1-one
;
_journal_coeditor_code           ZS2203
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1606
_journal_paper_doi               10.1107/S1600536812018934
_journal_volume                  68
_journal_year                    2012
_chemical_formula_iupac          'C23 H26 O4'
_chemical_formula_moiety         'C23 H26 O4'
_chemical_formula_sum            'C23 H26 O4'
_chemical_formula_weight         366.44
_chemical_name_systematic
;
9-(2-Hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)-3,3-dimethyl-2,3,4,9-
tetrahydro-1<i>H</i>-xanthen-1-one
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.3583(5)
_cell_length_b                   11.3833(4)
_cell_length_c                   22.2070(7)
_cell_measurement_reflns_used    7520
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.3762
_cell_measurement_theta_min      2.2634
_cell_volume                     3882.4(2)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 2005)'
_computing_molecular_graphics    'X-SEED (Barbour, 2001)'
_computing_publication_material  'publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       '\f and \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  0.0351
_diffrn_reflns_av_sigmaI/netI    0.0186
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            40229
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.83
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.871
_refine_diff_density_min         -0.281
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     251
_refine_ls_number_reflns         4454
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.0823
_refine_ls_R_factor_gt           0.0621
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0987P)^2^+2.2761P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1731
_refine_ls_wR_factor_ref         0.1954
_reflns_number_gt                3311
_reflns_number_total             4454
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            zs2203.cif
_cod_data_source_block           I
_cod_database_code               2235335
_cod_database_fobs_code          2235335