Tri- and Tetranuclear Nickel(II) Inverse Metallacrown Complexes Involving Oximato Oxygen Linkers: Role of the Guest Anion (Oxo versus Alkoxo) in Controlling the Size of the Ring Topology
Anandalok Audhya; Manoranjan Maity; Kisholoy Bhattacharya; Rodolphe Clérac; Muktimoy Chaudhury; Inorganic Chemistry 49 (2010) 9026–9035; doi:10.1021/ic101273y

data_4316628
_publ_section_title
;
 Tri- and Tetranuclear Nickel(II) Inverse Metallacrown Complexes Involving
 Oximato Oxygen Linkers: Role of the Guest Anion (Oxo versus Alkoxo) in
 Controlling the Size of the Ring Topology
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9026
_journal_page_last               9035
_journal_paper_doi               10.1021/ic101273y
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C52 H66 Cl2 N16 Ni4 O20'
_chemical_formula_weight         1540.95
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           142
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-I 4bd 2c'
_symmetry_space_group_name_H-M   'I 41/a c d :2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.5819(2)
_cell_length_b                   17.5819(2)
_cell_length_c                   46.2392(12)
_cell_measurement_temperature    298(2)
_cell_volume                     14293.6(4)
_computing_cell_refinement       'BRUKER APEX II'
_computing_data_collection       'BRUKER APEX II'
_computing_data_reduction        'BRUKER APEX II'
_computing_molecular_graphics    'MERCURY 2.2, PALTON-97'
_computing_publication_material  'MERCURY 2.2, PALTON-97'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 0.3
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD AREA DETECTOR'
_diffrn_measurement_method       OMEGA-SCAN
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0678
_diffrn_reflns_av_sigmaI/netI    0.0244
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       51
_diffrn_reflns_limit_l_min       -52
_diffrn_reflns_number            43164
_diffrn_reflns_theta_full        23.57
_diffrn_reflns_theta_max         23.57
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    1.189
_exptl_absorpt_correction_T_max  0.9109
_exptl_absorpt_correction_T_min  0.7635
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            RED
_exptl_crystal_density_diffrn    1.432
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             6368
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.425
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         2678
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0665
_refine_ls_R_factor_gt           0.0408
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.5623P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1257
_refine_ls_wR_factor_ref         0.1496
_reflns_number_gt                1904
_reflns_number_total             2678
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic101273y_si_002_3.cif
_cod_data_source_block           compound4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'TETRAGONAL' changed to 'tetragonal'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN'
changed to 'multi-scan' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_sg_symbol_H-M      'I 41/a c d'
_cod_database_code               4316628