Analysis of short contacts in crystals of halogenated amino acids: atom–atom interactions vs. energy frameworks
De Beer, Francois J.; Jacobs, Frederick J. F.; Ntsila, Akho; Kama, Dumisani V.; Azov, Vladimir A.; CrystEngComm 26 (2024) 604–619; doi:10.1039/D3CE01029E

data_7247867
_publ_section_title
;
 Analysis of short contacts in crystals of halogenated amino acids:
 atom--atom interactions vs. energy frameworks
;
_journal_issue                   5
_journal_name_full               CrystEngComm
_journal_page_first              604
_journal_page_last               619
_journal_paper_doi               10.1039/D3CE01029E
_journal_volume                  26
_journal_year                    2024
_chemical_formula_moiety         'C12 H22 I N O4'
_chemical_formula_sum            'C12 H22 I N O4'
_chemical_formula_weight         371.20
_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'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2023-01-24
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2023-01-26 deposited with the CCDC.	2023-12-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.4467(8)
_cell_length_b                   11.4173(18)
_cell_length_c                   25.107(4)
_cell_measurement_reflns_used    9855
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.32
_cell_measurement_theta_min      3.02
_cell_volume                     1561.3(4)
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2019/2 (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_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  0.0408
_diffrn_reflns_av_unetI/netI     0.0245
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            26043
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.329
_diffrn_reflns_theta_min         3.018
_diffrn_source_current           20.0
_diffrn_source_power             1.0
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.058
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6306
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016) was used for absorption correction.
wR2(int) was 0.0828 before and 0.0650 after correction.
The Ratio of minimum to maximum transmission is 0.8456.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.579
_exptl_crystal_description       Plate
_exptl_crystal_F_000             744
_exptl_crystal_size_max          0.169
_exptl_crystal_size_mid          0.094
_exptl_crystal_size_min          0.032
_refine_diff_density_max         0.641
_refine_diff_density_min         -0.447
_refine_diff_density_rms         0.057
_refine_ls_abs_structure_details
;
 Flack x determined using 1530 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.022(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.132
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         3883
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.136
_refine_ls_R_factor_all          0.0206
_refine_ls_R_factor_gt           0.0194
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0074P)^2^+0.5353P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0393
_refine_ls_wR_factor_ref         0.0396
_reflns_Friedel_coverage         0.713
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                3783
_reflns_number_total             3883
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ce01029e2.cif
_cod_data_source_block           q4_20dfd1_b_0m
_cod_depositor_comments
'Adding full bibliography for 7247865--7247871.cif.'
_cod_database_code               7247867
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_max   0.937
_shelx_estimated_absorpt_t_min   0.722
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2. Restrained distances
 H1-N1
 1 with sigma of 0.02
3.a Ternary CH refined with riding coordinates:
 C2(H2)
3.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B)
3.c Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C12(H12A,H12B,H12C), C8(H8A,H8B,H8C), C6(H6A,H6B,H6C),
 C10(H10A,H10B,H10C), C11(H11A,H11B,H11C)
;
_shelx_res_checksum              31406
_olex2_submission_special_instructions 'No special instructions were received'