Generation of Square-Shaped Cyclic Dimers vs Zigzag Hydrogen-Bonding Networks and Pseudoconformational Polymorphism of Tethered Benzoic Acids
Kohmoto, Shigeo; Kuroda, Yu; Kishikawa, Keiki; Masu, Hyuma; Azumaya, Isao; Crystal Growth & Design 9 (2009) 5017–; doi:10.1021/cg901244v

data_4509826
_publ_section_title
;
 Generation of Square-Shaped Cyclic Dimers vs Zigzag Hydrogen-Bonding
 Networks and Pseudoconformational Polymorphism of Tethered Benzoic Acids
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              5017
_journal_paper_doi               10.1021/cg901244v
_journal_volume                  9
_journal_year                    2009
_chemical_formula_sum            'C21 H24 O8'
_chemical_formula_weight         404.40
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 110.908(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   27.851(10)
_cell_length_b                   4.6754(17)
_cell_length_c                   16.764(6)
_cell_measurement_reflns_used    1637
_cell_measurement_temperature    90
_cell_measurement_theta_max      27.39
_cell_measurement_theta_min      2.51
_cell_volume                     2039.2(13)
_computing_cell_refinement       'Bruker Smart'
_computing_data_collection       'Bruker Smart'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'XSHEL (Bruker AXS,2002)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      90
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker Smart1000 CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  'Bruker Helios multilayer confocal mirror'
_diffrn_radiation_source         'Bruker TXS fine-focus rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0480
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            5421
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.40
_diffrn_reflns_theta_min         1.57
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_T_max  0.9899
_exptl_absorpt_correction_T_min  0.9558
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
SADABS Sheldrick 1996
;
_exptl_crystal_colour            prismatic
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.331
_refine_diff_density_min         -0.309
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     134
_refine_ls_number_reflns         2267
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0647P)^2^+1.2297P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1113
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                1701
_reflns_number_total             2267
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg901244vsup1.cif
_cod_data_source_block           1(810fmas)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'C2/c  '
_cod_database_code               4509826