[1a(1aα,5β,9aα)]-1,1a,4,5,7,8,9,9a-Octahydro-3-hydroxy-1,1,2,5-tetramethyl-7-methylene-6<i>H</i>-cyclopropa[3,4]cyclohept[1,2-<i>e</i>]inden-6-one
Do Valle, N. T.; De Simone, C. A.; Pereira, M. A.; Goulart, M. O. F.; Acta Crystallographica Section C 56 (2000) 566–567; doi:10.1107/S0108270199016108

data_2010977
_publ_section_title
'[1a(1a\a,5\b,9a\a)]-1,1a,4,5,7,8,9,9a-Octahydro-3-hydroxy-1,1,2,5-tetramethyl-7-methylene-6<i>H</i>-cyclopropa[3,4]cyclohept[1,2-<i>e</i>]inden-6-one'
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              566
_journal_page_last               567
_journal_paper_doi               10.1107/S0108270199016108
_journal_volume                  56
_journal_year                    2000
_chemical_formula_iupac          'C20 H24 O2'
_chemical_formula_moiety         'C20 H24 O2'
_chemical_formula_sum            'C20 H24 O2'
_chemical_formula_weight         296.39
_space_group_IT_number           96
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_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                   13.378(2)
_cell_length_b                   13.378(2)
_cell_length_c                   18.803(6)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      9.05
_cell_volume                     3365.2(13)
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full .999
_diffrn_measured_fraction_theta_max .999
_diffrn_measurement_device_type  '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     .71073
_diffrn_reflns_av_R_equivalents  .0296
_diffrn_reflns_av_sigmaI/netI    .0217
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            6369
_diffrn_reflns_theta_full        25.04
_diffrn_reflns_theta_max         25.04
_diffrn_reflns_theta_min         1.87
_diffrn_standards_decay_%        .4
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    .074
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1280
_exptl_crystal_size_max          .45
_exptl_crystal_size_mid          .35
_exptl_crystal_size_min          .30
_refine_diff_density_max         .156
_refine_diff_density_min         -.244
_refine_ls_abs_structure_details 'not determined'
_refine_ls_extinction_coef       .021(2)
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.157
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         2975
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.157
_refine_ls_R_factor_all          .0711
_refine_ls_R_factor_gt           .0573
_refine_ls_shift/su_max          .000
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0773P)^2^+0.0458P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .1249
_reflns_number_gt                2357
_reflns_number_total             2975
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sx1081.cif
_cod_data_source_block           (I)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               2010977