Clerodane Diterpenoids from Croton crassifolius.
Wang, Guo-Cai; Li, Jia-Gui; Li, Guo-Qiang; Xu, Jiao-Jiao; Wu, Xia; Ye, Wen-Cai; Li, Yao-Lan; Journal of natural products 75 (2012) 2188–2192; doi:10.1021/np300636k

data_1508564
_publ_section_title
;
 Clerodane Diterpenoids from Croton crassifolius.
;
_journal_issue                   12
_journal_name_full               'Journal of natural products'
_journal_page_first              2188
_journal_page_last               2192
_journal_paper_doi               10.1021/np300636k
_journal_volume                  75
_journal_year                    2012
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C21 H24 O6'
_chemical_formula_sum            'C21 H24 O6'
_chemical_formula_weight         372.40
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2012-09-18
_audit_creation_method
;
  Olex2 1.1
  (compiled 2011.11.01 svn.r2039, GUI svn.r3906)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 113.089(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.1689(3)
_cell_length_b                   21.3668(9)
_cell_length_c                   7.5017(4)
_cell_measurement_reflns_used    2015
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      60.7469
_cell_measurement_theta_min      6.2087
_cell_volume                     909.59(9)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
;
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
XL, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_computing_structure_solution
;
XS, G.M. Sheldrick, Acta Cryst.
(2008). A64, 112-122
;
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.0288
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_details
;
  1 omega -109.00  -84.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -      -33.1726 -178.0000 -150.0000 25

  2 omega -107.00  -64.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -      -33.1726 -178.0000  150.0000 43

  3 omega   -1.00   26.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -      -33.1726   38.0000  -30.0000 27

  4 omega   36.00   79.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       33.1726  178.0000  -90.0000 43

  5 omega   26.00   85.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       33.1726   57.0000   60.0000 59

  6 omega   49.00   81.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -94.0000   60.0000 32

  7 omega   27.00   74.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -45.0000  -60.0000 47

  8 omega   79.00  131.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  111.0000  -30.0000 52

  9 omega   21.00   47.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -30.0000   60.0000 26

 10 omega   42.00   68.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -94.0000   30.0000 26

 11 omega   74.00  116.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000   45.0000  -30.0000 42

 12 omega  119.00  158.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000   45.0000  -30.0000 39

 13 omega   18.00   71.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -94.0000  150.0000 53

 14 omega   72.00  106.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000   77.0000 -120.0000 34

 15 omega  119.00  155.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000   77.0000 -120.0000 36

 16 omega   28.00   83.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -94.0000 -120.0000 55

 17 omega   47.00   80.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  -94.0000  -60.0000 33

 18 omega   43.00   68.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000 -111.0000 -160.0000 25

 19 omega   79.00  115.00   1.0000    1.5000
omega____ theta____ kappa____ phi______ frames
    -       86.5000  111.0000   30.0000 36
;
_diffrn_measurement_device_type  'Xcalibur, Sapphire3, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_UB_11      0.1584556000
_diffrn_orient_matrix_UB_12      0.0291961000
_diffrn_orient_matrix_UB_13      0.1956438000
_diffrn_orient_matrix_UB_21      0.0247565000
_diffrn_orient_matrix_UB_22      -0.0644665000
_diffrn_orient_matrix_UB_23      0.0981057000
_diffrn_orient_matrix_UB_31      0.2190866000
_diffrn_orient_matrix_UB_32      -0.0138297000
_diffrn_orient_matrix_UB_33      -0.0439672000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.0199
_diffrn_reflns_av_unetI/netI     0.0283
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            3146
_diffrn_reflns_theta_full        60.83
_diffrn_reflns_theta_max         60.83
_diffrn_reflns_theta_min         6.74
_diffrn_source                   'Enhance Ultra (Cu) X-ray Source'
_diffrn_source_current           n/a
_diffrn_source_voltage           n/a
_exptl_absorpt_coefficient_mu    0.820
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78259
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear light colourless'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.360
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             396
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.138
_refine_diff_density_min         -0.158
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.9(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         2070
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0358
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0527P)^2^+0.1116P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0858
_refine_ls_wR_factor_ref         0.0880
_reflns_number_gt                1992
_reflns_number_total             2070
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            np300636k_si_004.cif
_cod_data_source_block           lijiagui_19
_cod_original_cell_volume        909.59(8)
_cod_database_code               1508564
_reflns_odcompleteness_completeness 94.79
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     62.30