Structurally Diverse Diterpenoids from Sandwithia guyanensis
Remy, Simon; Olivon, Florent; Desrat, Sandy; Blanchard, Florent; Eparvier, Véronique; Leyssen, Pieter; Neyts, Johan; Roussi, Fanny; Touboul, David; Litaudon, Marc; Journal of Natural Products  (2018) –; doi:10.1021/acs.jnatprod.7b01025

data_1549008
_publ_section_title
;
 Structurally Diverse Diterpenoids from Sandwithia guyanensis
;
_journal_name_full               'Journal of Natural Products'
_journal_paper_doi               10.1021/acs.jnatprod.7b01025
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C20 H28 O4'
_chemical_formula_sum            'C20 H28 O4'
_chemical_formula_weight         331.41
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2016-05-04
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 94.329(7)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   8.7269(4)
_cell_length_b                   8.1173(5)
_cell_length_c                   13.0392(9)
_cell_measurement_reflns_used    1794
_cell_measurement_temperature    293
_cell_measurement_theta_max      71.0
_cell_measurement_theta_min      3.4
_cell_volume                     921.05(10)
_computing_cell_refinement
;
CrystalClear-SM Expert 2.0 r16 (Rigaku, 2014)
;
_computing_data_collection
;
CrystalClear-SM Expert 2.0 r16 (Rigaku, 2014)
;
_computing_data_reduction
;
CrystalClear-SM Expert 2.0 r16 (Rigaku, 2014)
;
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_diffrn_ambient_temperature      293
_diffrn_detector                 RapidII
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_details
;
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 0.0000
                 Phi: 90.0000
                 XTD: 127.4000
              2theta: 0.0000
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 0.0000
                 Phi: 270.0000
                 XTD: 127.4000
              2theta: 0.0000
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 0.0000
                 XTD: 127.4000
              2theta: 0.0000
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 270.0000
                 XTD: 127.4000
              2theta: 0.0000
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 180.0000
                 XTD: 127.4000
              2theta: 0.0000
scan:
    Number of images: 18
               Slice: 20.0000 - 200.0000
         Image width: 10.0000
            Exp time: 900.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 54.0000
                 Phi: 90.0000
                 XTD: 127.4000
              2theta: 0.0000
;
_diffrn_measurement_device
;
Crystal Goniometer
;
_diffrn_measurement_device_type  rapid2
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_measurement_specimen_support Fiber
_diffrn_orient_matrix_type       FS_PROCESS
_diffrn_orient_matrix_UB_11      0.006707
_diffrn_orient_matrix_UB_12      -0.087921
_diffrn_orient_matrix_UB_13      -0.053099
_diffrn_orient_matrix_UB_21      -0.013729
_diffrn_orient_matrix_UB_22      -0.085977
_diffrn_orient_matrix_UB_23      0.053371
_diffrn_orient_matrix_UB_31      -0.113900
_diffrn_orient_matrix_UB_32      0.005186
_diffrn_orient_matrix_UB_33      -0.015397
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.0482
_diffrn_reflns_av_unetI/netI     0.0706
_diffrn_reflns_Laue_measured_fraction_full 0.986
_diffrn_reflns_Laue_measured_fraction_max 0.967
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            13743
_diffrn_reflns_point_group_measured_fraction_full 0.980
_diffrn_reflns_point_group_measured_fraction_max 0.951
_diffrn_reflns_theta_full        67.687
_diffrn_reflns_theta_max         72.410
_diffrn_reflns_theta_min         3.399
_diffrn_source                   'Rotating Anode'
_diffrn_source_current           30.0
_diffrn_source_power             1.2
_diffrn_source_voltage           40.0
_exptl_absorpt_coefficient_mu    0.658
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.824
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'FS_ABSCOR (Rigaku, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_description       plate
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details
;
 Flack x determined using 492 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.07(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     228
_refine_ls_number_reflns         3456
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.1217
_refine_ls_R_factor_gt           0.0514
_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^)+(0.0542P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0991
_refine_ls_wR_factor_ref         0.1403
_reflns_Friedel_coverage         0.831
_reflns_Friedel_fraction_full    0.973
_reflns_Friedel_fraction_max     0.932
_reflns_number_gt                1660
_reflns_number_total             3456
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            np7b01025_si_004.cif
_cod_data_source_block           shelx
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_database_code               1549008
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups, All O(H) groups
2. Restrained distances
 O4-H4 = O3-H3
 0.82 with sigma of 0.02
3.a Ternary CH refined with riding coordinates:
 C2(H2), C7(H7), C8(H8), C10(H10), C14(H14)
3.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C11(H11A,H11B), C12(H12A,H12B)
3.c Idealised Me refined as rotating group:
 C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,
 H19C), C20(H20A,H20B,H20C)
;
_shelx_res_checksum              17838
_shelx_hkl_checksum              89840
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'