Diversity-Oriented Synthesis of Steviol Glycosides.
Qiao, Zhi; Liu, Hui; Sui, Jing-Jing; Liao, Jin-Xi; Tu, Yuan-Hong; Schmidt, Richard R.; Sun, Jian-Song; The Journal of organic chemistry 83 (2018) 11480–11492; doi:10.1021/acs.joc.8b01274

data_4035196
_publ_section_title
;
 Diversity-Oriented Synthesis of Steviol Glycosides.
;
_journal_issue                   19
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              11480
_journal_page_last               11492
_journal_paper_doi               10.1021/acs.joc.8b01274
_journal_volume                  83
_journal_year                    2018
_chemical_absolute_configuration rm
_chemical_formula_sum            'C20 H32 O5'
_chemical_formula_weight         352.45
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6058(10)
_cell_length_b                   9.5960(9)
_cell_length_c                   25.628(3)
_cell_measurement_reflns_used    2811
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.3920
_cell_measurement_theta_min      4.1480
_cell_volume                     1870.5(4)
_computing_cell_refinement       'CrysAlisPro 1.171.39.37b (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.37b (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.37b (Rigaku OD, 2017)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            EosS2
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, EosS2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0694
_diffrn_reflns_av_unetI/netI     0.0717
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            10788
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.369
_diffrn_reflns_theta_min         3.418
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.42518
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.37b (Rigaku Oxford Diffraction, 2017)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_description       needle
_exptl_crystal_F_000             768
_exptl_crystal_size_max          0.060
_exptl_crystal_size_mid          0.050
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.232
_refine_diff_density_min         -0.228
_refine_diff_density_rms         0.057
_refine_ls_abs_structure_details
;
 Flack x determined using 772 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.4(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     234
_refine_ls_number_reflns         3790
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0986
_refine_ls_R_factor_gt           0.0794
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0730P)^2^+0.8890P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1747
_refine_ls_wR_factor_ref         0.1871
_reflns_Friedel_coverage         0.719
_reflns_Friedel_fraction_full    0.992
_reflns_Friedel_fraction_max     0.984
_reflns_number_gt                2978
_reflns_number_total             3790
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo8b01274_si_003.cif
_cod_data_source_block           QZ012202
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_absolute_configuration' value 'RM' was changed
to 'rm' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/current/ACS/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        1870.4(4)
_cod_database_code               4035196
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.995
_shelx_estimated_absorpt_t_max   0.997
_shelx_res_checksum              84347
_shelx_hkl_checksum              6427