New dibenzofuran-bridged bis(amidoamine) and bis(ethylenediamine) ligands and their dinuclear zinc and aluminium complexes
Hlavinka, Mark L.; Hagadorn, John R.; Chemical Communications (Cambridge, United Kingdom)  (2003) 2686–2687; doi:10.1039/b309732c

data_7104882
_publ_section_title
;
 New dibenzofuran-bridged bis(amidoamine) and bis(ethylenediamine) ligands
 and their dinuclear zinc and aluminium complexes
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   21
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2686
_journal_page_last               2687
_journal_paper_doi               10.1039/b309732c
_journal_year                    2003
_chemical_formula_sum            'C24 H38 Al2 N4 O'
_chemical_formula_weight         452.54
_chemical_name_common            LAl2Me4
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 99.5860(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.3634(4)
_cell_length_b                   10.6542(3)
_cell_length_c                   18.4122(6)
_cell_measurement_reflns_used    7680
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      31.509
_cell_measurement_theta_min      2.217
_cell_volume                     2584.86(14)
_computing_cell_refinement       'SAINT, Bruker'
_computing_data_collection       'SMART, Bruker'
_computing_data_reduction        'SAINT, Bruker'
_computing_molecular_graphics    'SHELXTL, Bruker'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0584
_diffrn_reflns_av_sigmaI/netI    0.0741
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            19632
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.55
_exptl_absorpt_coefficient_mu    0.134
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.385
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
semi-empirical absorption correction applied
using SADABS (Blessing, R. H. Acta Crystallogr., Sect. A 1995, 51, 33-38)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.163
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.436
_refine_diff_density_min         -0.317
_refine_diff_density_rms         0.057
_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     288
_refine_ls_number_reflns         5916
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0677
_refine_ls_R_factor_gt           0.0488
_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^)+(0.0567P)^2^+0.7562P] where P==(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1239
_refine_ls_wR_factor_ref         0.1351
_reflns_number_gt                4508
_reflns_number_total             5916
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b309732c.txt
_cod_data_source_block           compound_5
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7104882