Total synthesis of I3,II8-biapigenin and ridiculuflavone A
Lu, Kui; Yang, Ke; Jia, Xiaoliang; Gao, Xing; Zhao, Xia; Pan, Guojun; Ma, Yantao; Huang, Qiyao; Yu, Peng; Organic Chemistry Frontiers 4 (2017) 578–; doi:10.1039/C6QO00726K

data_1553609
_publ_section_title
;
 Total synthesis of I3,II8-biapigenin and ridiculuflavone A
;
_journal_issue                   4
_journal_name_full               'Organic Chemistry Frontiers'
_journal_page_first              578
_journal_paper_doi               10.1039/C6QO00726K
_journal_volume                  4
_journal_year                    2017
_chemical_formula_sum            'C41 H40 O11'
_chemical_formula_weight         708.73
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-11-18 deposited with the CCDC.
2017-01-20 downloaded from the CCDC.
;
_cell_angle_alpha                70.806(8)
_cell_angle_beta                 75.292(8)
_cell_angle_gamma                73.524(8)
_cell_formula_units_Z            2
_cell_length_a                   9.7469(7)
_cell_length_b                   13.1171(8)
_cell_length_c                   17.5212(12)
_cell_measurement_reflns_used    4797
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.0
_cell_volume                     1996.5(3)
_computing_cell_refinement
; 
Rigaku CrystalClear-SM Expert 2.1 b42 
;
_computing_data_collection
; 
Rigaku CrystalClear-SM Expert 2.1 b42 
;
_computing_data_reduction
; 
Rigaku CrystalClear-SM Expert 2.1 b42 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 5.8140
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'rigaku xtalab p200'
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_monochromator  multilayer
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0299
_diffrn_reflns_av_sigmaI/netI    0.0331
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            25802
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         3.03
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_T_max  0.9881
_exptl_absorpt_correction_T_min  0.9814
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   CrystalClear
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.179
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             748
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.14
_platon_squeeze_details
;
;
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.261
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.092
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     478
_refine_ls_number_reflns         9002
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0482
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0972P)^2^+0.0124P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1461
_refine_ls_wR_factor_ref         0.1549
_reflns_number_gt                6762
_reflns_number_total             9002
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6qo00726k2.cif
_cod_data_source_block           shelx-sr
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_absorpt_correction_type' value 'Multi-scan' was
changed to 'multi-scan' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        1996.5(2)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1553609