An octanuclear nickel(II) pyrazolate cluster with a cubic Ni8 core and its methyl- and n-octyl-functionalized derivatives
Al Isawi, Wisam A.; Zeller, Matthias; Mezei, Gellert; Acta Crystallographica Section E Crystallographic Communications 79 (2023) 1199–1206; doi:10.1107/S2056989023010101

data_2022955
_publ_section_title
;
 An octanuclear nickel(II) pyrazolate cluster with a cubic Ni8 core and
 its methyl- and n-octyl-functionalized derivatives
;
_journal_coeditor_code           XI2028
_journal_issue                   12
_journal_name_full
'Acta Crystallographica Section E Crystallographic Communications'
_journal_page_first              1199
_journal_page_last               1206
_journal_paper_doi               10.1107/S2056989023010101
_journal_volume                  79
_journal_year                    2023
_chemical_formula_iupac          '(C16 H36 N)2 [Ni8 (C11 H19 N2)12 (O H)6]'
_chemical_formula_moiety         '2(C16 H36 N +), C132 H234 N24 Ni8 O6 2-'
_chemical_formula_sum            'C164 H306 N26 Ni8 O6'
_chemical_formula_weight         3208.01
_chemical_name_systematic
'Bis(tetrabutylazanium) hexa-\m~4~-hydroxido-dodeca-\m~2~-(4-octylpyrazolato)-<i>hexahedro</i>-octanickel'
_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     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_cell_angle_alpha                99.896(17)
_cell_angle_beta                 94.798(17)
_cell_angle_gamma                99.10(2)
_cell_formula_units_Z            2
_cell_length_a                   13.973(8)
_cell_length_b                   20.765(10)
_cell_length_c                   31.873(14)
_cell_measurement_reflns_used    9844
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      70.0414
_cell_measurement_theta_min      3.8551
_cell_volume                     8937(8)
_computing_cell_refinement
;
SAINT V8.40B (Bruker, 2020)
;
_computing_data_collection
;
APEX4 v2021.10-RC6 (Bruker, 2021)
;
_computing_data_reduction
;
SAINT V8.40B (Bruker, 2020)
;
_computing_structure_refinement
;
<i>SHELXL2018/3</i> (Sheldrick, 2015b),
<i>ShelXle</i> Rev1183 (H\"ubschle <i>et al.</i>,  2011)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.971
_diffrn_measurement_device_type
;
Bruker AXS D8 Quest diffractometer with PhotonIII_C14 charge-integrating and
photon counting pixel array detector
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'laterally graded multilayer (Goebel) mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0713
_diffrn_reflns_av_unetI/netI     0.0697
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            110848
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         70.616
_diffrn_reflns_theta_min         2.377
_diffrn_source                   'I-mu-S microsource X-ray tube'
_diffrn_source_current           '1.0 mA'
_diffrn_source_voltage           '50 kV'
_exptl_absorpt_coefficient_mu    1.328
_exptl_absorpt_correction_T_max  0.753299
_exptl_absorpt_correction_T_min  0.594174
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(<i>TWINABS</i>; Sheldrick, 2012)
;
_exptl_crystal_colour            'light blue'
_exptl_crystal_density_diffrn    1.192
_exptl_crystal_description       'flat needle'
_exptl_crystal_F_000             3488
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.730
_refine_diff_density_min         -0.515
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     2507
_refine_ls_number_reflns         52094
_refine_ls_number_restraints     5486
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0947
_refine_ls_R_factor_gt           0.0659
_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^)+(0.0741P)^2^+9.5440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1624
_refine_ls_wR_factor_ref         0.1849
_reflns_number_gt                37936
_reflns_number_total             52094
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            xi2028sup1.cif
_cod_data_source_block           3
_cod_original_cell_volume        8938(8)
_cod_database_code               2022955
_shelx_estimated_absorpt_t_min   0.759
_shelx_estimated_absorpt_t_max   0.961
_shelx_hkl_checksum              44684
_shelx_res_checksum              4133
_cod_database_fobs_code 2022955