Calix[4]arenes of Aluminum and Gallium with Benzimidazolyl Ligands: Steric Control of the Conformation via Substitution on the Ligand
Ernesto Rufino-Felipe; Miguel-Ángel Muñoz-Hernández; Hugo F. Saucedo-Azpeitia; Sara A. Cortes-Llamas; Inorganic Chemistry 51 (2012) 12834–12840; doi:10.1021/ic301718m

data_4331166
_publ_section_title
;
 Calix[4]arenes of Aluminum and Gallium with Benzimidazolyl Ligands:
 Steric Control of the Conformation via Substitution on the Ligand
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12834
_journal_page_last               12840
_journal_paper_doi               10.1021/ic301718m
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C65 H93 Al4 N8'
_chemical_formula_weight         1094.39
_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_method           SHELXL-97
_cell_angle_alpha                75.504(4)
_cell_angle_beta                 85.532(4)
_cell_angle_gamma                85.889(3)
_cell_formula_units_Z            2
_cell_length_a                   10.475(2)
_cell_length_b                   13.238(3)
_cell_length_c                   26.098(5)
_cell_measurement_temperature    100(2)
_cell_volume                     3488.0(12)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0557
_diffrn_reflns_av_sigmaI/netI    0.1229
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            25235
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  0.9851
_exptl_absorpt_correction_T_min  0.9715
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.042
_exptl_crystal_description       block
_exptl_crystal_F_000             1182
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.748
_refine_diff_density_min         -0.495
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     681
_refine_ls_number_reflns         12034
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.1425
_refine_ls_R_factor_gt           0.0899
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1649P)^2^+0.3744P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2610
_refine_ls_wR_factor_ref         0.3079
_reflns_number_gt                7009
_reflns_number_total             12034
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic301718m_si_002_5.cif
_cod_data_source_block           Complex_13
_cod_original_cell_volume        3487.9(12)
_cod_database_code               4331166