A comparative study of the behaviour of N-trimethylsilyl and N-neopentyl-anilines and 1,2-diaminobenzenes towards trimethylalane; X-ray structures of nine Al‒N compounds
Bezombes, Jean-Philippe; Gehrhus, Barbara; Hitchcock, Peter B.; Lappert, Michael F.; Merle, Philippe G.; Dalton Transactions  (2003) 1821–; doi:10.1039/b300957m

data_7012768
_publ_section_title
;
 A comparative study of the behaviour of N-trimethylsilyl and
 N-neopentyl-anilines and 1,2-diaminobenzenes towards trimethylalane;
 X-ray structures of nine Al--N compounds
;
_journal_issue                   9
_journal_name_full               'Dalton Transactions'
_journal_page_first              1821
_journal_paper_doi               10.1039/b300957m
_journal_year                    2003
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C20 H38 Al2 N2'
_chemical_formula_structural     'C20 H38 AL2 N2'
_chemical_formula_sum            'C20 H38 Al2 N2'
_chemical_formula_weight         360.48
_chemical_name_common            '[C6H4{N(CH2tBu)AlMe2}]'
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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_conform_dict_location     ftp://ftp.iucr.org/cifdics/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.1
_audit_creation_date             2000-07-13T14:26:13-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                86.587(1)
_cell_angle_beta                 86.748(1)
_cell_angle_gamma                85.995(1)
_cell_formula_units_Z            4
_cell_length_a                   7.9936(2)
_cell_length_b                   10.0922(2)
_cell_length_c                   28.6783(6)
_cell_measurement_reflns_used    24855
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.028
_cell_measurement_theta_min      3.705
_cell_measurement_wavelength     0.71073
_cell_volume                     2300.61(9)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0608
_diffrn_reflns_av_unetI/netI     0.0504
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            23948
_diffrn_reflns_theta_full        25.07
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         3.73
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_T_max  0.9496
_exptl_absorpt_correction_T_min  0.9496
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.041
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.4
_exptl_crystal_size_min          0.4
_refine_diff_density_max         0.34
_refine_diff_density_min         -0.332
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     433
_refine_ls_number_reflns         8008
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0674
_refine_ls_R_factor_gt           0.0561
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0470P)^2^+2.7195P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1409
_refine_ls_wR_factor_ref         0.1466
_reflns_number_gt                6742
_reflns_number_total             8008
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b300957m.txt
_cod_data_source_block           lappert-5
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7012768