Effect of disordered imidazole substructure on proton dynamics in imidazolium malonic acid salt
Ławniczak, Paweł; Pogorzelec-Glaser, Katarzyna; Pietraszko, Adam; Hilczer, Bożena; Acta Crystallographica Section B 77 (2021) 31–40; doi:10.1107/S2052520620014365

data_2108743
_publ_section_title
;
 Effect of disordered imidazole substructure on proton dynamics in
 imidazolium malonic acid salt
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              31
_journal_page_last               40
_journal_paper_doi               10.1107/S2052520620014365
_journal_volume                  77
_journal_year                    2021
_chemical_formula_moiety         'C6 H5 O8, 3(C3 H5 N2)'
_chemical_formula_sum            'C7.5 H10 N3 O4'
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_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                116.22(3)
_cell_angle_beta                 101.88(3)
_cell_angle_gamma                91.18(3)
_cell_formula_units_Z            2
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_cell_length_b                   8.378(2)
_cell_length_c                   9.249(2)
_cell_measurement_reflns_used    4533
_cell_measurement_temperature    120(2)
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_cell_measurement_theta_min      4
_cell_volume                     472.3(2)
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_diffrn_ambient_temperature      120(2)
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_diffrn_measured_fraction_theta_max 0.920
_diffrn_measurement_device_type  'Xcalibur-Oxford Diffraction'
_diffrn_measurement_method       CCD
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0231
_diffrn_reflns_av_unetI/netI     0.0299
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.920
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            4533
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.920
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.034
_diffrn_reflns_theta_min         2.749
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.119
_exptl_absorpt_correction_T_max  1.1201
_exptl_absorpt_correction_T_min  0.9552
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'CrysAlis v171.33.42'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.450
_exptl_crystal_description       unshaped
_exptl_crystal_F_000             216
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.21
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_refine_diff_density_min         -0.222
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_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
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_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         2104
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.269
_refine_ls_R_factor_all          0.0408
_refine_ls_R_factor_gt           0.0314
_refine_ls_shift/su_max          0.069
_refine_ls_shift/su_mean         0.009
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.0322P)^2^]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0721
_refine_ls_wR_factor_ref         0.0752
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1657
_reflns_number_total             2104
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            lo5078sup1.cif
_cod_data_source_block           m120
_cod_depositor_comments
'Adding full bibliography for 2108742--2108745.cif.'
_cod_original_formula_sum        'C7.50 H10 N3 O4'
_cod_database_code               2108743
_cod_database_fobs_code          2108743
_shelxl_version_number           2013-2
_shelx_res_checksum              88217
_shelx_hkl_checksum              9691