Synthesis of a stable adduct of dialane(4) (Al2H4) via hydrogenation of a magnesium(I) dimer.
Bonyhady, Simon J.; Collis, David; Frenking, Gernot; Holzmann, Nicole; Jones, Cameron; Stasch, Andreas; Nature chemistry 2 (2010) 865–869; doi:10.1038/nchem.762

data_1508105
_publ_section_title
;
 Synthesis of a stable adduct of dialane(4) (Al2H4) via hydrogenation of a
 magnesium(I) dimer.
;
_journal_issue                   10
_journal_name_full               'Nature chemistry'
_journal_page_first              865
_journal_page_last               869
_journal_paper_doi               10.1038/nchem.762
_journal_volume                  2
_journal_year                    2010
_chemical_formula_sum            'C31 H48 Al I2 N3'
_chemical_formula_weight         743.50
_chemical_name_systematic
; 
 ? 
;
_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                 96.92(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   35.768(7)
_cell_length_b                   10.242(2)
_cell_length_c                   18.497(4)
_cell_measurement_temperature    123(2)
_cell_volume                     6727(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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  0.0361
_diffrn_reflns_av_sigmaI/netI    0.0571
_diffrn_reflns_limit_h_max       43
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            24068
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    1.919
_exptl_absorpt_correction_T_max  0.478
_exptl_absorpt_correction_T_min  0.432
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sortav (Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.468
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2992
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.45
_refine_diff_density_max         1.423
_refine_diff_density_min         -1.025
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     710
_refine_ls_number_reflns         13142
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0777
_refine_ls_R_factor_gt           0.0414
_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^)+(0.0496P)^2^+4.9896P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0935
_refine_ls_wR_factor_ref         0.1089
_reflns_number_gt                8972
_reflns_number_total             13142
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nchem.762-s10.cif
_cod_data_source_block           compound16
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1508105