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_7247869
_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         'C15 H20 I N O4'
_chemical_formula_sum            'C15 H20 I N O4'
_chemical_formula_weight         405.22
_space_group_crystal_system      trigonal
_space_group_IT_number           144
_space_group_name_Hall           'P 31'
_space_group_name_H-M_alt        'P 31'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_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
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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                120
_cell_formula_units_Z            3
_cell_length_a                   16.6588(11)
_cell_length_b                   16.6588(11)
_cell_length_c                   5.1740(5)
_cell_measurement_reflns_used    9899
_cell_measurement_temperature    110.0
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.45
_cell_volume                     1243.50(17)
_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)'
_computing_structure_solution    'SHELXT  (Sheldrick, 2015)'
_diffrn_ambient_temperature      110.0
_diffrn_measured_fraction_theta_full 0.999
_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  0.0647
_diffrn_reflns_av_unetI/netI     0.0541
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            16446
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.356
_diffrn_reflns_theta_min         2.445
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.946
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.6057
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1395 before and 0.0899 after correction.
The Ratio of minimum to maximum transmission is 0.8123.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.623
_exptl_crystal_description       Needle
_exptl_crystal_F_000             606
_exptl_crystal_size_max          0.373
_exptl_crystal_size_mid          0.043
_exptl_crystal_size_min          0.041
_refine_diff_density_max         0.336
_refine_diff_density_min         -0.741
_refine_diff_density_rms         0.082
_refine_ls_abs_structure_details
;
 Flack x determined using 1894 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.055(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     194
_refine_ls_number_reflns         4125
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0295
_refine_ls_R_factor_gt           0.0273
_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^)+(0.0179P)^2^+0.1229P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0641
_refine_ls_wR_factor_ref         0.0656
_reflns_Friedel_coverage         0.989
_reflns_Friedel_fraction_full    0.993
_reflns_Friedel_fraction_max     0.986
_reflns_number_gt                3967
_reflns_number_total             4125
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ce01029e2.cif
_cod_data_source_block           mo_v4_21ffdb3_0m
_cod_depositor_comments
'Adding full bibliography for 7247865--7247871.cif.'
_cod_original_cell_volume        1243.5(2)
_cod_database_code               7247869
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_max   0.924
_shelx_estimated_absorpt_t_min   0.531
_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.a Ternary CH refined with riding coordinates:
 C2(H2)
2.b Secondary CH2 refined with riding coordinates:
 C3(H3A,H3B), C5(H5A,H5B)
2.c Me refined with riding coordinates:
 C15(H15A,H15B,H15C), C13(H13A,H13B,H13C), C14(H14A,H14B,H14C)
2.d Aromatic/amide H refined with riding coordinates:
 C11(H11), C9(H9), C7(H7), C10(H10), C8(H8)
;
_shelx_res_checksum              55541
_olex2_submission_special_instructions 'No special instructions were received'