Colupulone
Archer, Roland Peter; Tyrrell, Elizabeth; Singh, Kuldip; Acta Crystallographica Section E 63 (2007) o1511–o1512; doi:10.1107/S1600536807008860

data_2212554
_publ_section_title
;
 Colupulone
;
_journal_coeditor_code           GG3075
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1511
_journal_page_last               o1512
_journal_paper_doi               10.1107/S1600536807008860
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C25 H36 O4'
_chemical_formula_moiety         'C25 H36 O4'
_chemical_formula_sum            'C25 H36 O4'
_chemical_formula_weight         400.54
_chemical_name_systematic
;
3,5-dihydroxy-2-isobutyryl-4,6,6-tris(3-methyl-but-2-enyl)cyclohexa-2,4-
dienone
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   20.331(3)
_cell_length_b                   10.9190(18)
_cell_length_c                   21.327(4)
_cell_measurement_reflns_used    941
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.55
_cell_measurement_theta_min      2.77
_cell_volume                     4734.5(14)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SHELXTL (Sheldrick, 2000)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measured_fraction_theta_max 1.00
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.083
_diffrn_reflns_av_sigmaI/netI    0.045
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            32137
_diffrn_reflns_theta_full        25.0
_diffrn_reflns_theta_max         25.0
_diffrn_reflns_theta_min         1.91
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.124
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1744
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.24
_refine_diff_density_min         -0.17
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         4169
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0745
_refine_ls_R_factor_gt           0.0549
_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^)+(0.0514P)^2^+1.5184P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1215
_refine_ls_wR_factor_ref         0.1306
_reflns_number_gt                3337
_reflns_number_total             4169
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            gg3075.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        4734.4(13)
_cod_database_code               2212554
_cod_database_fobs_code          2212554