; Chemistry of Materials  (2003) –; doi:10.1021/cm0340532

data_4000295
_journal_name_full               'Chemistry of Materials'
_journal_paper_doi               10.1021/cm0340532
_journal_year                    2003
_chemical_formula_sum            'C20 H20.6 N2 O6.3'
_chemical_formula_weight         389.78
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.5798(10)
_cell_length_b                   16.699(2)
_cell_length_c                   17.630(3)
_cell_measurement_reflns_used    2422
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.68
_cell_measurement_theta_min      2.31
_cell_volume                     1937.2(5)
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0646
_diffrn_reflns_av_sigmaI/netI    0.0792
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            8922
_diffrn_reflns_theta_max         24.77
_diffrn_reflns_theta_min         1.68
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.9960
_exptl_absorpt_correction_T_min  0.9821
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Bruker)'
_exptl_crystal_colour            light
_exptl_crystal_density_diffrn    1.336
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             820
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.5(17)
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     267
_refine_ls_number_reflns         3040
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0982
_refine_ls_R_factor_gt           0.0468
_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^)+(0.0476P)^2^+0.2790P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0945
_refine_ls_wR_factor_ref         0.1159
_reflns_number_gt                2052
_reflns_number_total             3040
_reflns_threshold_expression     >2sigma(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 
;
_cod_original_sg_symbol_H-M      Pna2(1)
_cod_original_formula_sum        'C20 H20.60 N2 O6.30'
_cod_database_code               4000295