Conglomerate and racemate formation of 2,3-bisfluoren-9-ylidenesuccinic acid by inclusion complexation with achiral guest molecules
Tanaka, Koichi; Iwamoto, Toshimasa; Caira, Mino R.; New Journal of Chemistry 28 (2004) 329–; doi:10.1039/b314192f

data_7050251
_publ_section_title
;
 Conglomerate and racemate formation of
 2,3-bisfluoren-9-ylidenesuccinic acid by inclusion complexation with
 achiral guest molecules
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              329
_journal_paper_doi               10.1039/b314192f
_journal_volume                  28
_journal_year                    2004
_chemical_formula_moiety         'C30 H18 O4'
_chemical_formula_sum            'C30 H18 O4'
_chemical_formula_weight         442.47
_chemical_name_common            '2,3-bis-fluoren-9-ylidene-succinic acid'
_chemical_name_systematic
;
2,3-bis-fluoren-9-ylidene-succinic acid
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                   15.8893(3)
_cell_length_b                   9.7361(2)
_cell_length_c                   13.3280(2)
_cell_measurement_reflns_used    14383
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      1.02
_cell_volume                     2061.84(7)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (2000)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'NOnius Kappa CCD'
_diffrn_measurement_method       'phi- amd omega scans, 0.5-1.0 deg.'
_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  0.030
_diffrn_reflns_av_sigmaI/netI    0.0300
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4477
_diffrn_reflns_theta_full        27.87
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         3.32
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9814
_exptl_absorpt_correction_T_min  0.9723
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   -
_exptl_crystal_colour            orange-red
_exptl_crystal_density_diffrn    1.425
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.279
_refine_diff_density_min         -0.195
_refine_diff_density_rms         0.040
_refine_ls_extinction_coef       -
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2435
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0518
_refine_ls_R_factor_gt           0.0376
_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^)+(0.0419P)^2^+0.7144P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0890
_refine_ls_wR_factor_ref         0.0949
_reflns_number_gt                1976
_reflns_number_total             2435
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b314192f.txt
_cod_data_source_block           a:\tanak1
_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:

'_exptl_crystal_density_meas' value '-' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      Pbcn
_cod_database_code               7050251