Gomisin N
Marek, Jaromír; Slanina, Jiří; Acta Crystallographica Section C 54 (1998) 1548–1550; doi:10.1107/S0108270198006489

data_2007717
_publ_section_title
;
 Gomisin N
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1548
_journal_page_last               1550
_journal_paper_doi               10.1107/S0108270198006489
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C23 H28 O6'
_chemical_formula_sum            'C23 H28 O6'
_chemical_formula_weight         400.45
_chemical_melting_point          376.0(10)
_chemical_name_common
;
Gomisin N
;
_chemical_name_systematic
;
1,2,3,12-tetramethoxy-6,7-dimethyl-
10,11-methylenedioxy-5,6,7,8-tetrahydrodibenzo[a,c]cyclooctene
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7171(8)
_cell_length_b                   10.9766(12)
_cell_length_c                   21.946(4)
_cell_measurement_reflns_used    50
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      14.0
_cell_measurement_theta_min      10.4
_cell_volume                     2099.9(5)
_computing_cell_refinement       'KM-4 Software'
_computing_data_collection       'KM-4 Software (Kuma, 1992)'
_computing_data_reduction        'KM-4 Software'
_computing_molecular_graphics    'ORTEPIII (Johnson & Burnett, 1996)'
_computing_publication_material  'SHELXL97 and PARST (Nardelli, 1995)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measured_fraction_theta_max 1.00
_diffrn_measurement_device_type  'Kuma KM4'
_diffrn_measurement_method       \w/2\q
_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  0.149
_diffrn_reflns_av_sigmaI/netI    0.026
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            2208
_diffrn_reflns_theta_full        25.24
_diffrn_reflns_theta_max         25.24
_diffrn_reflns_theta_min         2.07
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.267
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.8
_exptl_crystal_size_mid          0.8
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.176
_refine_ls_extinction_coef       0.0019(10)
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   0.955
_refine_ls_hydrogen_treatment
'H atoms treated by a mixture of independent and constrained refinement'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     309
_refine_ls_number_reflns         2184
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.955
_refine_ls_R_factor_all          0.055
_refine_ls_R_factor_gt           0.036
_refine_ls_shift/su_max          '< 0.001'
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.05P)^2^+0.50P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.100
_reflns_number_gt                1684
_reflns_number_total             2184
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            da1014.cif
_cod_data_source_block           gomisin
_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.

'_geom_bond_publ_flag' value 'Yes' changed to 'yes' according
to '/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (21
time).

'_geom_bond_publ_flag' value 'No' changed to 'no' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29 (10 times).

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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.05P)^2^+0.50P] where P = (Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
1/[\s^2^(Fo^2^)+(0.05P)^2^+0.50P] where P = (Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               2007717