Salts of 4-aminobutyric acid and 6-aminohexanoic acid behaving as molecular Velcro
Rademeyer, Melanie; van der Westhuizen, Belinda; CrystEngComm  (2017) –; doi:10.1039/C7CE01597F

data_7229439
_publ_section_title
;
 Salts of 4-aminobutyric acid and 6-aminohexanoic acid behaving as
 molecular Velcro
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C7CE01597F
_journal_year                    2017
_chemical_formula_moiety         'C6 H14 N O2, Cl O4'
_chemical_formula_sum            'C6 H14 Cl N O6'
_chemical_formula_weight         231.63
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2017-08-31 deposited with the CCDC.
2017-10-31 downloaded from the CCDC.
;
_cell_angle_alpha                82.962(2)
_cell_angle_beta                 86.746(2)
_cell_angle_gamma                88.924(2)
_cell_formula_units_Z            2
_cell_length_a                   5.2863(3)
_cell_length_b                   5.6138(3)
_cell_length_c                   17.4559(9)
_cell_measurement_reflns_used    9916
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.23
_cell_measurement_theta_min      2.35
_cell_volume                     513.26(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0298
_diffrn_reflns_av_unetI/netI     0.0206
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13688
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.264
_diffrn_reflns_theta_min         2.355
_exptl_absorpt_coefficient_mu    0.378
_exptl_absorpt_correction_T_max  0.8014
_exptl_absorpt_correction_T_min  0.7267
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2015)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.499
_exptl_crystal_description       block
_exptl_crystal_F_000             244
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.390
_exptl_crystal_size_min          0.360
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.392
_refine_diff_density_rms         0.048
_refine_ls_extinction_coef       0.094(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2284
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0331
_refine_ls_R_factor_gt           0.0286
_refine_ls_shift/su_max          0.010
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 w=1/[\s^2^(Fo^2^)+(0.0312P)^2^+0.2789P]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0705
_refine_ls_wR_factor_ref         0.0726
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2074
_reflns_number_total             2284
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7ce01597f2.cif
_cod_data_source_block           shelxl
_cod_database_code               7229439
_shelx_estimated_absorpt_t_min   0.833
_shelx_estimated_absorpt_t_max   0.876
_shelxl_version_number           2013-2
_shelx_res_checksum              4828