Lewis-Base Stabilization of the Parent Al(I) Hydride under Ambient Conditions.
Mellerup, Soren K.; Cui, Yunshu; Fantuzzi, Felipe; Schmid, Paul; Goettel, James T.; Bélanger-Chabot, Guillaume; Arrowsmith, Merle; Krummenacher, Ivo; Ye, Qing; Engel, Volker; Engels, Bernd; Braunschweig, Holger; Journal of the American Chemical Society 141 (2019) 16954–16960; doi:10.1021/jacs.9b09128

data_4127945
_publ_section_title
;
 Lewis-Base Stabilization of the Parent Al(I) Hydride under Ambient
 Conditions.
;
_journal_issue                   42
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              16954
_journal_page_last               16960
_journal_paper_doi               10.1021/jacs.9b09128
_journal_volume                  141
_journal_year                    2019
_chemical_formula_moiety         'C40 H63 Al N2'
_chemical_formula_sum            'C40 H63 Al N2'
_chemical_formula_weight         598.90
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                89.029(13)
_cell_angle_beta                 86.294(10)
_cell_angle_gamma                69.262(10)
_cell_formula_units_Z            2
_cell_length_a                   9.602(2)
_cell_length_b                   12.341(3)
_cell_length_c                   16.807(5)
_cell_measurement_reflns_used    9804
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.06
_cell_measurement_theta_min      2.43
_cell_volume                     1858.6(8)
_computing_cell_refinement       'Saint+ ver. V8.37A (Bruker AXS)'
_computing_data_collection       'APEX2 ver. 2014.9 (Bruker AXS)'
_computing_data_reduction        'Saint+ ver. V8.37A (Bruker AXS)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector                 'CMOS area detector (Photon II)'
_diffrn_detector_area_resol_mean 7.5
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker D8 Quest'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'multi-layer mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0618
_diffrn_reflns_av_unetI/netI     0.0278
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.992
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            84173
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.992
_diffrn_reflns_theta_full        26.000
_diffrn_reflns_theta_max         26.092
_diffrn_reflns_theta_min         2.272
_diffrn_source                   'microfocus sealed tube (Incoatec ImS)'
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6558
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SadAbs 2016/2 (Bruker AXS)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.070
_exptl_crystal_description       Plate
_exptl_crystal_F_000             660
_exptl_crystal_size_max          0.462
_exptl_crystal_size_mid          0.455
_exptl_crystal_size_min          0.024
_refine_diff_density_max         0.276
_refine_diff_density_min         -0.486
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     408
_refine_ls_number_reflns         7328
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0645
_refine_ls_R_factor_gt           0.0502
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0288P)^2^+1.5707P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1061
_refine_ls_wR_factor_ref         0.1136
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6030
_reflns_number_total             7328
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b09128_si_003.cif
_cod_data_source_block           (cAAC)2AlH
_cod_original_cell_volume        1858.7(9)
_cod_database_code               4127945
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.963
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              51616
_shelx_hkl_checksum              30024