6β,8β-Dihydroxyeremophil-7(11)-en-8α,12-olide
Zhang, Zhan-Xin; Fei, Dong-Qing; Acta Crystallographica Section E 67 (2011) o2957–; doi:10.1107/S160053681104150X

data_2232274
_publ_section_title
;
 6\b,8\b-Dihydroxyeremophil-7(11)-en-8\a,12-olide
;
_journal_coeditor_code           HB6428
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2957
_journal_paper_doi               10.1107/S160053681104150X
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C15 H22 O4'
_chemical_formula_moiety         'C15 H22 O4'
_chemical_formula_sum            'C15 H22 O4'
_chemical_formula_weight         266.33
_chemical_name_systematic
;
6\b,8\b-Dihydroxyeremophil-7(11)-en-8\a,12-olide
;
_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                   9.8627(7)
_cell_length_b                   10.5674(7)
_cell_length_c                   13.1565(9)
_cell_measurement_reflns_used    2527
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.74
_cell_measurement_theta_min      2.47
_cell_volume                     1371.21(16)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT (Bruker, 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      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       '\f and \w'
_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  0.0277
_diffrn_reflns_av_sigmaI/netI    0.0310
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7478
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.47
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9737
_exptl_absorpt_correction_T_min  0.9658
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2005)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.29
_refine_diff_density_max         0.146
_refine_diff_density_min         -0.115
_refine_ls_abs_structure_details none
_refine_ls_extinction_coef       0.043(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXTL (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     178
_refine_ls_number_reflns         2680
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0425
_refine_ls_R_factor_gt           0.0343
_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^)+(0.0430P)^2^+0.0843P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0827
_refine_ls_wR_factor_ref         0.0873
_reflns_number_gt                2306
_reflns_number_total             2680
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6428.cif
_cod_data_source_block           I
_cod_database_code               2232274
_cod_database_fobs_code          2232274