A new type of C2H2 binding site in a cis-bridging hexafluorosilicate ultramicroporous material that offers trace C2H2 capture
Song, Bai-Qiao; Gao, Mei-Yan; Mercene van Wyk, Lisa; Deng, Cheng-Hua; Eaby, Alan C.; Wang, Shi-Qiang; Darwish, Shaza; Li, Dan; Qin, Shao-Jie; Peng, Yun-Lei; Yang, Qing-Yuan; Barbour, Leonard J.; Zaworotko, Michael J.; Chemical Science 16 (2025) 9010–9019; doi:10.1039/D5SC00697J

data_1574477
_publ_section_title
;
 A new type of C2H2 binding site in a cis-bridging hexafluorosilicate
 ultramicroporous material that offers trace C2H2 capture
;
_journal_issue                   20
_journal_name_full               'Chemical Science'
_journal_page_first              9010
_journal_page_last               9019
_journal_paper_doi               10.1039/D5SC00697J
_journal_volume                  16
_journal_year                    2025
_chemical_formula_moiety         'C14 H14 Cu0.5 F6 N4 Si, C14 H14 Cu0.5 N4'
_chemical_formula_sum            'C28 H28 Cu F6 N8 Si'
_chemical_formula_weight         682.21
_chemical_name_systematic        SIFSIX-bidmb-Cu
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2024-04-19
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2024-04-24 deposited with the CCDC.	2025-04-15 downloaded from the CCDC.
;
_cell_angle_alpha                107.3570(10)
_cell_angle_beta                 101.7380(10)
_cell_angle_gamma                118.1650(10)
_cell_formula_units_Z            2
_cell_length_a                   12.7494(5)
_cell_length_b                   13.2904(6)
_cell_length_c                   13.4525(5)
_cell_measurement_reflns_used    9828
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      3.115
_cell_volume                     1750.18(13)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150.0
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0165
_diffrn_reflns_av_unetI/netI     0.0247
_diffrn_reflns_Laue_measured_fraction_full 0.981
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            16744
_diffrn_reflns_point_group_measured_fraction_full 0.981
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.517
_diffrn_reflns_theta_min         3.047
_exptl_absorpt_coefficient_mu    0.719
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.7093
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0336 before and 0.0288 after correction. The Ratio of minimum to maximum transmission is 0.9513. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            'clear dark violet'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    violet
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_description       block
_exptl_crystal_F_000             698
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.301
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     404
_refine_ls_number_reflns         7915
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0333
_refine_ls_R_factor_gt           0.0276
_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^)+(0.0318P)^2^+0.8219P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0682
_refine_ls_wR_factor_ref         0.0709
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6932
_reflns_number_total             7915
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc00697j2.cif
_cod_data_source_block           SIFSIX-bidmb-Cu
_cod_depositor_comments
'Adding full bibliography for 1574477--1574483.cif.'
_cod_original_cell_volume        1750.18(12)
_cod_database_code               1574477
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.858
_shelx_estimated_absorpt_t_min   0.808
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C6(H6), C8(H8), C9(H9), C11(H11), C15(H15),
 C16(H16), C17(H17), C19(H19), C21(H21), C23(H23), C25(H25), C26(H26)
2.b Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C14(H14A,H14B,H14C), C27(H27A,H27B,H27C), C28(H28A,H28B,
 H28C)
;
_shelx_res_checksum              90584
_shelx_fab_checksum              77265
_platon_squeeze_void_probe_radius 1.20
_olex2_submission_special_instructions 'No special instructions were received'