Torsional flexibility in zinc-benzenedicarboxylate metal-organic frameworks.
Meekel, Emily G.; Nicholas, Thomas C.; Slater, Ben; Goodwin, Andrew L.; CrystEngComm 26 (2024) 673–680; doi:10.1039/d3ce01078c

data_7247926
_publ_section_title
;
 Torsional flexibility in zinc-benzenedicarboxylate metal-organic
 frameworks.
;
_journal_issue                   5
_journal_name_full               CrystEngComm
_journal_page_first              673
_journal_page_last               680
_journal_paper_doi               10.1039/d3ce01078c
_journal_volume                  26
_journal_year                    2024
_chemical_formula_moiety         'C8 H3 Br O4 Zn'
_chemical_formula_sum            'C8 H3 Br O4 Zn'
_chemical_formula_weight         308.38
_space_group_crystal_system      trigonal
_space_group_IT_number           166
_space_group_name_Hall           '-R 3 2"'
_space_group_name_H-M_alt        'R -3 m :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2023-05-29
_audit_creation_method
;
Olex2 1.5
(compiled 2023.03.06 svn.rbb2c1857 for OlexSys, GUI svn.r6748)
;
_audit_update_record
;
2023-10-19 deposited with the CCDC.	2023-12-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   28.4852(3)
_cell_length_b                   28.4852(3)
_cell_length_c                   7.90520(10)
_cell_measurement_reflns_used    8821
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      75.4080
_cell_measurement_theta_min      5.3660
_cell_volume                     5554.97(11)
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL  (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 13.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, Eiger 1M'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0644
_diffrn_reflns_av_unetI/netI     0.0168
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            21620
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         75.991
_diffrn_reflns_theta_min         5.379
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    6.489
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.51366
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.83a (Rigaku Oxford Diffraction, 2020)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.659
_exptl_crystal_description       rods
_exptl_crystal_F_000             2664
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.902
_refine_diff_density_min         -1.696
_refine_diff_density_rms         0.171
_refine_ls_extinction_coef       0.00015(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/1 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.133
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     70
_refine_ls_number_reflns         1372
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.149
_refine_ls_R_factor_all          0.0622
_refine_ls_R_factor_gt           0.0613
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1371P)^2^+26.4502P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1998
_refine_ls_wR_factor_ref         0.2010
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1313
_reflns_number_total             1372
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3ce01078c1.cif
_cod_data_source_block           em-01-73_1
_cod_depositor_comments
'Adding full bibliography for 7247925--7247930.cif.'
_cod_original_cell_volume        5554.97(14)
_cod_original_sg_symbol_H-M      'R -3 m'
_cod_database_code               7247926
_shelx_shelxl_version_number     2019/1
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Restrained planarity
 C1_$1, C2_$1, C4_$1, H4_$1, C5, Br1, C4, H4, C2, C1, C3, H3
 with sigma of 0.1
3.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4)
;
_shelx_res_checksum              37913
_olex2_submission_special_instructions 'No special instructions were received'