Anion Template Effect on the Self-Assembly and Interconversion of Metallacyclophanes
Cristian Saul Campos-Fernández; Brandi L. Schottel; Helen T. Chifotides; Jitendra K. Bera; John Bacsa; John M. Koomen; David H. Russell; Kim R. Dunbar; Journal of the American Chemical Society 127 (2005) 12909–12923; doi:10.1021/ja052108q

data_4111914
_publ_contact_author_address
; 
Department of Chemistry
Texas A&M University
PO Box 30012 
College Station 
Texas 77842-3012 
USA
;
_publ_contact_author_email       dunbar@mail.chem.tamu.edu
_publ_contact_author_fax         (979)8457177
_publ_contact_author_name        'Kim Dunbar'
_publ_contact_author_phone       (979)8621485
_publ_section_title
;
 Anion Template Effect on the Self-Assembly and Interconversion of
 Metallacyclophanes
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12909
_journal_page_last               12923
_journal_paper_doi               10.1021/ja052108q
_journal_volume                  127
_journal_year                    2005
_chemical_formula_sum            'C72 H68 B8 F32 N36 Ni4'
_chemical_formula_weight         2366.94
_chemical_name_common            '[Ni4(bptz)4(CH3CN)8][BF4]8\y4CH3CN'
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             'October 5 2004'
_audit_creation_method
;
SHELXL-97, PLATON, and text editor.
;
_cell_angle_alpha                94.87(3)
_cell_angle_beta                 91.43(3)
_cell_angle_gamma                97.47(3)
_cell_formula_units_Z            2
_cell_length_a                   14.118(3)
_cell_length_b                   17.090(3)
_cell_length_c                   21.774(4)
_cell_measurement_temperature    110(2)
_cell_volume                     5186.7(18)
_computing_cell_refinement       'SAINT (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.929
_diffrn_measured_fraction_theta_max 0.929
_diffrn_measurement_device_type  'SMART 1K CCD'
_diffrn_measurement_method       '\w scans'
_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  0.0434
_diffrn_reflns_av_sigmaI/netI    0.1138
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            24784
_diffrn_reflns_theta_full        24.71
_diffrn_reflns_theta_max         24.71
_diffrn_reflns_theta_min         1.46
_exptl_absorpt_coefficient_mu    0.831
_exptl_absorpt_correction_T_max  0.9215
_exptl_absorpt_correction_T_min  0.6813
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2000)'
_exptl_crystal_colour            'light green'
_exptl_crystal_density_diffrn    1.516
_exptl_crystal_description       'rectangular block'
_exptl_crystal_F_000             2384
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.189
_refine_diff_density_min         -0.948
_refine_diff_density_rms         0.104
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1365
_refine_ls_number_reflns         16454
_refine_ls_number_restraints     92
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.1544
_refine_ls_R_factor_gt           0.0870
_refine_ls_shift/su_max          0.006
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1129P)^2^+12.1070P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2056
_refine_ls_wR_factor_ref         0.2430
_reflns_number_gt                9445
_reflns_number_total             16454
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja052108qsi20050426_034819.cif
_cod_data_source_block           str1
_cod_original_cell_volume        5186.6(18)
_cod_database_code               4111914