Comparing molecular gelators and nongelators based on solubilities and solid-state interactions.
Chen, Jing; Kampf, Jeff W.; McNeil, Anne J.; Langmuir : the ACS journal of surfaces and colloids 26 (2010) 13076–13080; doi:10.1021/la102500u

data_4502723
_publ_section_title
;
 Comparing molecular gelators and nongelators based on solubilities and
 solid-state interactions.
;
_journal_issue                   16
_journal_name_full
'Langmuir : the ACS journal of surfaces and colloids'
_journal_page_first              13076
_journal_page_last               13080
_journal_paper_doi               10.1021/la102500u
_journal_volume                  26
_journal_year                    2010
_chemical_formula_moiety         'C19 H15 N3 O8'
_chemical_formula_sum            'C19 H15 N3 O8'
_chemical_formula_weight         413.34
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                65.205(5)
_cell_angle_beta                 72.708(5)
_cell_angle_gamma                88.913(5)
_cell_formula_units_Z            2
_cell_length_a                   7.958(2)
_cell_length_b                   10.806(3)
_cell_length_c                   12.466(4)
_cell_measurement_reflns_used    3707
_cell_measurement_temperature    85(2)
_cell_measurement_theta_max      26.35
_cell_measurement_theta_min      2.70
_cell_volume                     922.3(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART-APEX'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      85(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0889
_diffrn_reflns_av_sigmaI/netI    0.0853
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16859
_diffrn_reflns_theta_full        26.42
_diffrn_reflns_theta_max         26.42
_diffrn_reflns_theta_min         1.90
_exptl_absorpt_coefficient_mu    0.119
_exptl_absorpt_correction_T_max  0.9965
_exptl_absorpt_correction_T_min  0.9453
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  Blessing, R. Acta Cryst. (1995) A51 33-38.
  Sheldrick, G.  SADABS (Version 2008/1) Bruker AXS area
  detector absorption and other corrections, University of
  Gottingen, Germany 2008.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.489
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             428
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.521
_refine_diff_density_min         -0.512
_refine_diff_density_rms         0.141
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     275
_refine_ls_number_reflns         3766
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.1183
_refine_ls_R_factor_gt           0.0776
_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^)+(0.1113P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1779
_refine_ls_wR_factor_ref         0.1986
_reflns_number_gt                2403
_reflns_number_total             3766
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            la102500u_si_006.cif
_cod_data_source_block           jcb93
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        922.2(5)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4502723