Facile preparation and structure‒property correlation of low molecular mass organic gelators derived from simple organic salts
Trivedi, Darshak R.; Ballabh, Amar; Dastidar, Parthasarathi; Journal of Materials Chemistry 15 (2005) 2606–; doi:10.1039/b504969e

data_7203802
_publ_section_title
;
 Facile preparation and structure--property correlation of low
 molecular mass organic gelators derived from simple organic salts
;
_journal_issue                   26
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              2606
_journal_paper_doi               10.1039/b504969e
_journal_volume                  15
_journal_year                    2005
_chemical_formula_sum            'C38 H56 N4 O8'
_chemical_formula_weight         696.87
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 108.2100(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.2474(14)
_cell_length_b                   9.7893(7)
_cell_length_c                   20.5900(14)
_cell_measurement_temperature    293(2)
_cell_volume                     3876.7(5)
_computing_cell_refinement       'BRUKER AXS SMART 3'
_computing_data_collection       'BRUKER AXS SMART 3'
_computing_data_reduction        'BRUKER AXS SMART 3'
_computing_molecular_graphics    'PLATON, MERCURY 1.2'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'BRUKER SMART CCD AREA DETECTOR'
_diffrn_measurement_method       PHI-OMEGA
_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  0.0187
_diffrn_reflns_av_sigmaI/netI    0.0206
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15175
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         2.02
_diffrn_standards_decay_%        '<10 %'
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_type   SADABS
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.194
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1504
_exptl_crystal_size_max          0.78mm
_exptl_crystal_size_mid          0.48mm
_exptl_crystal_size_min          0.35mm
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     675
_refine_ls_number_reflns         5075
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0456
_refine_ls_R_factor_gt           0.0397
_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^)+(0.0602P)^2^+0.9466P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1053
_refine_ls_wR_factor_ref         0.1107
_reflns_number_gt                4370
_reflns_number_total             5075
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b504969e.txt
_cod_data_source_block           dt0941
_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 2.4.1 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      'P 2(1)/C'
_cod_database_code               7203802