Mixed-magnesium/zinc calix[4]arene complexes: structure, and ring opening polymerisation studies.
Banks, Henry J. S.; Frese, Josef W. A.; Elsegood, Mark R. J.; Redshaw, Carl; Chemical communications (Cambridge, England) 60 (2024) 304–307; doi:10.1039/d3cc04899c

data_7132568
_publ_section_title
;
 Mixed-magnesium/zinc calix[4]arene complexes: structure, and ring opening
 polymerisation studies.
;
_journal_issue                   3
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              304
_journal_page_last               307
_journal_paper_doi               10.1039/d3cc04899c
_journal_volume                  60
_journal_year                    2024
_chemical_formula_moiety         'C190 H244 Mg5 N2 O20 Zn2, 5(C2 H3 N)'
_chemical_formula_sum            'C200 H259 Mg5 N7 O20 Zn2'
_chemical_formula_weight         3333.42
_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   mixed
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2023-11-14 deposited with the CCDC.	2023-12-01 downloaded from the CCDC.
;
_cell_angle_alpha                89.281(5)
_cell_angle_beta                 73.491(7)
_cell_angle_gamma                87.287(7)
_cell_formula_units_Z            2
_cell_length_a                   17.1750(19)
_cell_length_b                   23.5379(14)
_cell_length_c                   25.6364(16)
_cell_measurement_reflns_used    7826
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      68.87
_cell_measurement_theta_min      2.58
_cell_volume                     9925.5(14)
_computing_cell_refinement       'CrysAlisPro 1.171.41.105a (Rigaku OD, 2021)'
_computing_data_collection       'CrysAlisPro 1.171.41.105a (Rigaku OD, 2021)'
_computing_data_reduction        'CrysAlisPro 1.171.41.105a (Rigaku OD, 2021)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT-2018/2 (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type
; 
Rigaku 007HF equipped with Varimax confocal mirrors and 
an AFC11 goniometer and HyPix 6000 detector 
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_collimation    0.3
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.1816
_diffrn_reflns_av_unetI/netI     0.1591
_diffrn_reflns_Laue_measured_fraction_full 0.959
_diffrn_reflns_Laue_measured_fraction_max 0.959
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            95866
_diffrn_reflns_point_group_measured_fraction_full 0.959
_diffrn_reflns_point_group_measured_fraction_max 0.959
_diffrn_reflns_theta_full        57.500
_diffrn_reflns_theta_max         57.500
_diffrn_reflns_theta_min         2.599
_diffrn_source                   'Rotating anode'
_exptl_absorpt_coefficient_mu    0.928
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.693
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.41.105a (Rigaku Oxford Diffraction, 2021) 
Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.115
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             3576
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: acetonitrile'
_exptl_crystal_size_max          0.360
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.010
_refine_diff_density_max         2.204
_refine_diff_density_min         -0.838
_refine_diff_density_rms         0.161
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     2328
_refine_ls_number_reflns         26084
_refine_ls_number_restraints     1662
_refine_ls_restrained_S_all      0.988
_refine_ls_R_factor_all          0.3375
_refine_ls_R_factor_gt           0.2453
_refine_ls_shift/su_max          0.037
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.3625P)^2^+256.5300P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.5894
_refine_ls_wR_factor_ref         0.6853
_reflns_Friedel_coverage         0.000
_reflns_number_gt                12203
_reflns_number_total             26084
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3cc04899c2.cif
_cod_data_source_block           cr658
_cod_database_code               7132568
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.731
_shelx_estimated_absorpt_t_max   0.991
_shelx_res_checksum              99657
_shelx_hkl_checksum              59801
_shelx_fab_checksum              48019