Steric control of conformation in self-assembly metallacalix[4]arenes derived from AlMe3 or GaMe3 with benzimidazolyl ligands
Ernesto Rufino-Felipe; Miguel-Angel Munoz-Hernandez; Chem.Commun. 47 (2011) 3210–; doi:10.1039/c0cc05438k

data_7106094
_publ_section_title
;
 Steric control of conformation in self-assembly metallacalix[4]arenes
 derived from AlMe3 or GaMe3 with benzimidazolyl ligands
;
_journal_name_full               Chem.Commun.
_journal_page_first              3210
_journal_paper_doi               10.1039/c0cc05438k
_journal_volume                  47
_journal_year                    2011
_chemical_formula_sum            'C36 H44 Al4 N8'
_chemical_formula_weight         696.71
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_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                 98.999(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.108(3)
_cell_length_b                   11.423(3)
_cell_length_c                   17.530(5)
_cell_measurement_temperature    100(2)
_cell_volume                     1999.2(10)
_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 0.874
_diffrn_measured_fraction_theta_max 0.874
_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  0.0492
_diffrn_reflns_av_sigmaI/netI    0.1019
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4628
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    0.151
_exptl_absorpt_correction_T_max  0.9776
_exptl_absorpt_correction_T_min  0.9674
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.157
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.565
_refine_diff_density_min         -0.376
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         3071
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.1078
_refine_ls_R_factor_gt           0.0695
_refine_ls_shift/su_max          0.304
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1016P)^2^+0.1288P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1676
_refine_ls_wR_factor_ref         0.2014
_reflns_number_gt                2023
_reflns_number_total             3071
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0CC05438K.TXT
_cod_data_source_block           complex_1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_cell_volume        1999.1(10)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7106094