Synthesis and reactivity of bis-pentamethylcyclopentadienyl diiododialane (Cp*AlI)2: an aluminium(II) precursor to (Cp*Al)4.
Minasian, Stefan G; Arnold, John; Chemical communications (Cambridge, England)  (2008) 4043–4045; doi:10.1039/b806804f

data_7103312
_publ_section_title
;
 Synthesis and reactivity of bis-pentamethylcyclopentadienyl
 diiododialane (Cp*AlI)2: an aluminium(II) precursor to (Cp*Al)4.
;
_journal_issue                   34
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4043
_journal_page_last               4045
_journal_paper_doi               10.1039/b806804f
_journal_year                    2008
_chemical_formula_moiety         'C68 H80 Al2 I2 N4, 0.5( C5 H12 )'
_chemical_formula_sum            'C70.5 H86 Al2 I2 N4'
_chemical_formula_weight         1297.19
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                105.315(2)
_cell_angle_beta                 94.491(2)
_cell_angle_gamma                102.4080(10)
_cell_formula_units_Z            2
_cell_length_a                   10.6194(10)
_cell_length_b                   15.9477(15)
_cell_length_c                   21.317(2)
_cell_measurement_reflns_used    4962
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      46.381
_cell_measurement_theta_min      5.000
_cell_volume                     3365.5(5)
_computing_cell_refinement       'Bruker SAINT v7.07'
_computing_data_collection       'Bruker SMART v5.631'
_computing_data_reduction        'Bruker SAINT v7.07'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Beamline 11.3.1 ALS'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirrors
_diffrn_radiation_source         synchrotron
_diffrn_radiation_wavelength     0.77490
_diffrn_reflns_av_R_equivalents  0.0727
_diffrn_reflns_av_sigmaI/netI    0.0891
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            41370
_diffrn_reflns_theta_full        30.21
_diffrn_reflns_theta_max         30.21
_diffrn_reflns_theta_min         2.50
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.246
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.814
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Blessing, 1995'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.280
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1338
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.000
_refine_diff_density_min         -1.206
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     752
_refine_ls_number_reflns         15352
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0868
_refine_ls_R_factor_gt           0.0563
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0483P)^2^+0.6125P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1330
_refine_ls_wR_factor_ref         0.1503
_reflns_number_gt                10196
_reflns_number_total             15352
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b806804f.txt
_cod_data_source_block           sgm464
_cod_database_code               7103312