The [2 + 4] Diels-Alder Cycloadditon Product of a Probable Dialuminene, Ar'AlAlAr' (Ar' = C6H3- 2,6-Dipp2; Dipp = C6H3-2,6-Pri2), with Toluene
Robert J. Wright; Andrew D. Phillips; Philip P. Power; Journal of the American Chemical Society 125 (2003) 10784–10785; doi:10.1021/ja034478p

data_4114127
_publ_section_title
;
 The [2 + 4] Diels-Alder Cycloadditon Product of a Probable Dialuminene,
 Ar'AlAlAr' (Ar' = C6H3- 2,6-Dipp2; Dipp = C6H3-2,6-Pri2), with Toluene
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              10784
_journal_page_last               10785
_journal_paper_doi               10.1021/ja034478p
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C42 H49 Al I'
_chemical_formula_weight         707.69
_chemical_name_common            (Dipp*AlI)2.2C6H6
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 114.603(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.5724(12)
_cell_length_b                   19.0587(17)
_cell_length_c                   15.5757(14)
_cell_measurement_reflns_used    934
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      30.7395
_cell_measurement_theta_min      2.5755
_cell_volume                     3663.2(6)
_computing_cell_refinement       'Bruker SAINT 6.35A (Bruker 2002)'
_computing_data_collection       'Bruker SMART 5.054 (Bruker 2001)'
_computing_data_reduction        'Bruker SAINT 6.35A (Bruker 2002)'
_computing_molecular_graphics    'SHELXTL 5, XP (Sheldrick, 1994)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0223
_diffrn_reflns_av_sigmaI/netI    0.0162
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            29453
_diffrn_reflns_theta_full        24.00
_diffrn_reflns_theta_max         24.00
_diffrn_reflns_theta_min         1.97
_diffrn_standards_decay_%        <0.1
_diffrn_standards_interval_time
;
frames measured at beginning and end of data collection 
;
_diffrn_standards_number         '50 frames remeasured'
_exptl_absorpt_coefficient_mu    0.925
_exptl_absorpt_correction_T_max  0.7883
_exptl_absorpt_correction_T_min  0.6918
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2.04 (Bruker 2002)'
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.283
_exptl_crystal_description       block
_exptl_crystal_F_000             1468
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.27
_refine_diff_density_max         1.053
_refine_diff_density_min         -1.036
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     397
_refine_ls_number_reflns         5731
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0471
_refine_ls_R_factor_gt           0.0426
_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^)+(0.0550P)^2^+16.4903P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1210
_refine_ls_wR_factor_ref         0.1245
_reflns_number_gt                5199
_reflns_number_total             5731
_reflns_threshold_expression     I>2/s(I)
_cod_data_source_file            ja034478psi20030619_012921.cif
_cod_data_source_block           adp119
_cod_database_code               4114127