9a-Hydroxy-3,8a-dimethyl-5-methylene-4,4a,5,6,9,9a-hexahydronaphtho[2,3-<i>b</i>]furan-2(8a<i>H</i>)-one
Liu, Wen-Hong; He, Jie; Ding, Zhi-Shan; Song, Zhong-Cheng; Zhan, Zha-Jun; Acta Crystallographica Section E 67 (2011) o730–o731; doi:10.1107/S1600536811006519

data_2229518
_publ_section_title
;
 9a-Hydroxy-3,8a-dimethyl-5-methylene-4,4a,5,6,9,9a-hexahydronaphtho[2,3-<i>b</i>]furan-2(8a<i>H</i>)-one
;
_journal_coeditor_code           SJ5106
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o730
_journal_page_last               o731
_journal_paper_doi               10.1107/S1600536811006519
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C15 H18 O3'
_chemical_formula_moiety         'C15 H18 O3'
_chemical_formula_sum            'C15 H18 O3'
_chemical_formula_weight         247.30
_chemical_name_systematic
;
9a-Hydroxy-3,8a-dimethyl-5-methylene-4,4a,5,6,9,9a-hexahydronaphtho[2,3-
<i>b</i>]furan-2(8a<i>H</i>)-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5150(19)
_cell_length_b                   10.885(2)
_cell_length_c                   12.594(3)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      13
_cell_measurement_theta_min      10
_cell_volume                     1304.4(5)
_computing_cell_refinement       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_collection       'CAD-4 Software (Enraf--Nonius, 1989)'
_computing_data_reduction        'XCAD4 (Harms & Wocadlo, 1995)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0206
_diffrn_reflns_av_sigmaI/netI    0.0242
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            2616
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         2.47
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9829
_exptl_absorpt_correction_T_min  0.9745
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North <i>et al.</i>, 1968)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             532
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.151
_refine_diff_density_min         -0.122
_refine_ls_extinction_coef       0.036(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         1367
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0350
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_max_lt       0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0474P)^2^+0.1815P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0870
_refine_ls_wR_factor_ref         0.0913
_reflns_number_gt                1209
_reflns_number_total             1367
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj5106.cif
_cod_data_source_block           I
_cod_database_code               2229518
_cod_database_fobs_code          2229518