Hydride‒bromide exchange at an NHC—a new route to brominated alanes and gallanes
Alexander, Sean G.; Cole, Marcus L.; Furfari, Samantha K.; Kloth, Marc; Dalton Transactions  (2009) 2909–2911; doi:10.1039/b821367d

data_7030580
_publ_section_title
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 Hydride--bromide exchange at an NHC---a new route to brominated alanes
 and gallanes
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_journal_coden_ASTM              DTARAF
_journal_issue                   16
_journal_name_full               'Dalton Transactions'
_journal_page_first              2909
_journal_page_last               2911
_journal_paper_doi               10.1039/b821367d
_journal_year                    2009
_chemical_compound_source        toluene
_chemical_formula_moiety         'C21 H25 Al Br2 N2'
_chemical_formula_sum            'C21 H25 Al Br2 N2'
_chemical_formula_weight         492.23
_chemical_name_common            '[AlBr2H(IMes)]'
_chemical_temperature_decomposition 545
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.1065(2)
_cell_length_b                   16.5232(3)
_cell_length_c                   19.4059(3)
_cell_measurement_temperature    123(2)
_cell_volume                     4523.21(13)
_computing_cell_refinement       DENZO-SMN
_computing_data_collection       'Nonius Collect'
_computing_data_reduction        X-Seed
_computing_molecular_graphics    'X-Seed / POV-Ray'
_computing_publication_material  'Microsoft Office 2000'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'psi and omega scans'
_diffrn_radiation_monochromator  g'graphite'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1178
_diffrn_reflns_av_sigmaI/netI    0.0821
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            46827
_diffrn_reflns_theta_full        29.57
_diffrn_reflns_theta_max         29.57
_diffrn_reflns_theta_min         2.10
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    3.630
_exptl_absorpt_correction_T_max  0.7129
_exptl_absorpt_correction_T_min  0.5305
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'performed as part of the DENZO-SMN package'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.446
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1984
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         2.959
_refine_diff_density_min         -0.583
_refine_diff_density_rms         0.126
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         6173
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.1176
_refine_ls_R_factor_gt           0.0537
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0670P)^2^+2.8169P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1170
_refine_ls_wR_factor_ref         0.1403
_reflns_number_gt                3642
_reflns_number_total             6173
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7001008
_cod_data_source_file            b821367d.txt
_cod_data_source_block           1
_cod_depositor_comments
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The following automatic conversions were performed:

'_chemical_melting_point' tag was changed to
'_chemical_temperature_decomposition' since the value had been '545
dec.'. The value '545 dec.' was changed to '545'.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
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_cod_database_code               7030580