Crystal structure of 15,16-epoxy-7β,9α-dihydroxylabdane-13(16),14-dien-6-one
Singh, Vikram Dev; Kamni; Amina, Musarat; Al-Musayeib, Nawal; Anthal, Sumati; Kant, Rajni; Acta Crystallographica Section E 71 (2015) o483–o484; doi:10.1107/S2056989015011214

data_2240830
_publ_section_title
;
 Crystal structure of
 15,16-epoxy-7\b,9\a-dihydroxylabdane-13(16),14-dien-6-one
;
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o483
_journal_page_last               o484
_journal_paper_doi               10.1107/S2056989015011214
_journal_volume                  71
_journal_year                    2015
_chemical_formula_iupac          'C20 H30 O4'
_chemical_formula_moiety         'C20 H30 O4'
_chemical_formula_sum            'C20 H30 O4'
_chemical_formula_weight         334.44
_chemical_name_systematic
;
15,16-Epoxy-7\b,9\a-dihydroxylabdane-13(16),14-dien-6-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                   8.5757(7)
_cell_length_b                   9.2957(8)
_cell_length_c                   22.994(2)
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.3000
_cell_measurement_theta_min      4.1820
_cell_volume                     1833.0(3)
_computing_cell_refinement
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_data_collection
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_data_reduction
;
CrysAlis PRO (Oxford Diffraction, 2010)
;
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 2012)
;
_computing_publication_material
;
PLATON (Spek, 2009)
;
_computing_structure_refinement
;
SHELXL97 (Sheldrick, 2008)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.1049
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur Sapphire3'
_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  0.0212
_diffrn_reflns_av_sigmaI/netI    0.0572
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5318
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.54
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.86537
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis PRO; Oxford Diffraction, 2010)
;
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.124
_refine_diff_density_min         -0.143
_refine_ls_extinction_coef       0.0048(14)
_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   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         3554
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0849
_refine_ls_R_factor_gt           0.0524
_refine_ls_shift/su_max          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^)+(0.0448P)^2^+0.0670P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1153
_reflns_number_gt                2457
_reflns_number_total             3554
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5767sup1.cf
_cod_data_source_block           I
_cod_database_code               2240830
_cod_database_fobs_code          2240830