Geometric H/D isotope effect in a series of organic salts involving short O–H⋯O hydrogen bonds between carboxyl and carboxylate groups
Jin, Tong; Zhang, Wen; CrystEngComm 21 (2019) 4238–; doi:10.1039/C9CE00734B

data_7232966
_publ_section_title
;
 Geometric H/D isotope effect in a series of organic salts involving short
 O--H&#x22EF;O hydrogen bonds between carboxyl and carboxylate groups
;
_journal_issue                   29
_journal_name_full               CrystEngComm
_journal_page_first              4238
_journal_paper_doi               10.1039/C9CE00734B
_journal_volume                  21
_journal_year                    2019
_chemical_formula_moiety         'C8 H F4 O4, C6 H8 N'
_chemical_formula_sum            'C14 H9 F4 N O4'
_chemical_formula_weight         331.22
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-06-13 deposited with the CCDC.    2019-06-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.2846(5)
_cell_length_b                   9.7080(6)
_cell_length_c                   19.3450(10)
_cell_measurement_reflns_used    10472
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.509
_cell_measurement_theta_min      2.106
_cell_volume                     1368.06(14)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasS2'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0302
_diffrn_reflns_av_unetI/netI     0.0366
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.930
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            10472
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.884
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.509
_diffrn_reflns_theta_min         2.106
_exptl_absorpt_coefficient_mu    0.153
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.608
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             672.0
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.244
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details
;
 Flack x determined using 824 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.2(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3368
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0408P)^2^+0.1483P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0870
_refine_ls_wR_factor_ref         0.0981
_reflns_Friedel_coverage         0.651
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.821
_reflns_number_gt                2589
_reflns_number_total             3811
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce00734b2.cif
_cod_data_source_block           5-H
_cod_depositor_comments
'Adding full bibliography for 7232953--7232976.cif.'
_cod_database_code               7232966
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              75394