Synthesis of the Reported Structure of trans-Africanan-1α-ol
Douglass F. Taber; Sha Bai; Weiwei Tian; Journal of Organic Chemistry 76 (2011) 9733–9737; doi:10.1021/jo2018558

data_4026766
_publ_section_title
;
 Synthesis of the Reported Structure of trans-Africanan-1\a-ol
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9733
_journal_page_last               9737
_journal_paper_doi               10.1021/jo2018558
_journal_volume                  76
_journal_year                    2011
_chemical_formula_sum            'C21 H20 N2 O8'
_chemical_formula_weight         428.39
_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                   6.903(2)
_cell_length_b                   12.849(4)
_cell_length_c                   22.305(7)
_cell_measurement_reflns_used    1011
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      22.46
_cell_measurement_theta_min      3.17
_cell_volume                     1978.4(10)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2001)'
_computing_publication_material  'SHELXTL (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker AXS APEX diffractometer'
_diffrn_measurement_method       \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  0.0468
_diffrn_reflns_av_sigmaI/netI    0.0369
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            24993
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.83
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.112
_exptl_absorpt_correction_T_max  0.9931
_exptl_absorpt_correction_T_min  0.9809
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_description       plate
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.170
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         4933
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0697
_refine_ls_R_factor_gt           0.0494
_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^)+(0.0537P)^2^+0.2132P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1151
_refine_ls_wR_factor_ref         0.1281
_reflns_number_gt                3836
_reflns_number_total             4933
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo2018558_si_002.cif
_cod_data_source_block           dout076
_cod_original_cell_volume        1978.4(12)
_cod_database_code               4026766