Anion tuning of the rheology, morphology and gelation of a low molecular weight salt hydrogelator
Lloyd, Gareth O.; Steed, Jonathan W.; Soft Matter 7 (2011) 75–; doi:10.1039/c0sm00594k

data_1515970
_publ_section_title
;
 Anion tuning of the rheology, morphology and gelation of a low molecular
 weight salt hydrogelator
;
_journal_issue                   1
_journal_name_full               'Soft Matter'
_journal_page_first              75
_journal_paper_doi               10.1039/c0sm00594k
_journal_volume                  7
_journal_year                    2011
_chemical_formula_moiety         'C11 H11 N5 O3'
_chemical_formula_sum            'C11 H11 N5 O3'
_chemical_formula_weight         261.25
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 103.507(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.4699(10)
_cell_length_b                   5.4899(5)
_cell_length_c                   20.581(2)
_cell_measurement_reflns_used    2887
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      30.248
_cell_measurement_theta_min      2.248
_cell_volume                     1150.25(19)
_computing_cell_refinement       Saint
_computing_data_collection       Smart
_computing_data_reduction        Saint
_computing_molecular_graphics    Xseed
_computing_publication_material  Xseed
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  Smart-6K
_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  0.0388
_diffrn_reflns_av_sigmaI/netI    0.0433
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            10993
_diffrn_reflns_theta_full        30.49
_diffrn_reflns_theta_max         30.49
_diffrn_reflns_theta_min         2.02
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.114
_exptl_absorpt_correction_T_max  0.9887
_exptl_absorpt_correction_T_min  0.5356
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.509
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.279
_refine_diff_density_rms         0.063
_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     173
_refine_ls_number_reflns         3450
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0715
_refine_ls_R_factor_gt           0.0488
_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^)+(0.0759P)^2^+0.2055P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1435
_reflns_number_gt                2428
_reflns_number_total             3450
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0sm00594k.txt
_cod_data_source_block           z:\xraydata\gareth\09srv209\work\srv209m
_cod_original_cell_volume        1150.26(19)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1515970