Crystal structures of metal‒organic frameworks sustained by π‒π interactions between triple-helices
Mo Hong; Fang Chen-jie; Duan Chun-ying; Li Yu-ting; Meng Qing-jin; Dalton Trans.  (2003) 1229–1234; doi:10.1039/b209366a

data_7012263
_publ_section_title
;
 Crystal structures of metal--organic frameworks sustained by \p--\p
 interactions between triple-helices
;
_journal_issue                   7
_journal_name_full               'Dalton Trans.'
_journal_page_first              1229
_journal_page_last               1234
_journal_paper_doi               10.1039/b209366a
_journal_year                    2003
_chemical_formula_sum            'C47 H37 Fe2 N7 O6'
_chemical_formula_weight         907.54
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           52
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2a 2bc'
_symmetry_space_group_name_H-M   'P n n 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            4
_cell_length_a                   19.557(4)
_cell_length_b                   16.232(3)
_cell_length_c                   14.405(3)
_cell_measurement_temperature    293(2)
_cell_volume                     4572.9(16)
_computing_cell_refinement       'Xscans, 1994'
_computing_data_collection       'Xscans, 1994'
_computing_data_reduction        'Xscans, 1994'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Siemens P4'
_diffrn_measurement_method       '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  0.0001
_diffrn_reflns_av_sigmaI/netI    0.0153
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4189
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.43
_exptl_absorpt_coefficient_mu    0.689
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            dark-brown
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.812
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     277
_refine_ls_number_reflns         4020
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0640
_refine_ls_R_factor_gt           0.0530
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1162P)^2^+4.0887P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1714
_refine_ls_wR_factor_ref         0.1804
_reflns_number_gt                3351
_reflns_number_total             4020
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b209366a.txt
_cod_data_source_block           compound_2
_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      'Pnna '
_cod_database_code               7012263