Synthesis and Stability of Homoleptic Metal(III) Tetramethylaluminates
Giovanni Occhipinti; Christian Meermann; H. Martin Dietrich; Rannveig Litlabø; Florian Auras; Karl Wilhelm Törnroos; Cäcilia Maichle-Mössmer; Vidar R. Jensen; Reiner Anwander; Journal of the American Chemical Society 133 (2011) 6323–6337; doi:10.1021/ja2001049

data_4106036
_publ_contact_author_address
;
Department of Chemistry,
University of Bergen,
All\'egaten 41,
N-5007 Bergen,
Norway
;
_publ_contact_author_name
;
Prof. Karl Wilhelm T\"ornroos
;
_publ_section_title
;
 Synthesis and Stability of Homoleptic Metal(III) Tetramethylaluminates
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6323
_journal_page_last               6337
_journal_paper_doi               10.1021/ja2001049
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C32 H80 Al4 Eu2'
_chemical_formula_sum            'C32 H80 Al4 Eu2'
_chemical_formula_weight         876.80
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           145
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_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                120.00
_cell_formula_units_Z            3
_cell_length_a                   11.8535(6)
_cell_length_b                   11.8535(6)
_cell_length_c                   27.0516(14)
_cell_measurement_reflns_used    9927
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      28.72
_cell_measurement_theta_min      2.49
_cell_volume                     3291.7(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker TXS Rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0229
_diffrn_reflns_av_sigmaI/netI    0.0171
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            50964
_diffrn_reflns_theta_full        28.75
_diffrn_reflns_theta_max         28.75
_diffrn_reflns_theta_min         1.98
_exptl_absorpt_coefficient_mu    2.929
_exptl_absorpt_correction_T_max  0.4737
_exptl_absorpt_correction_T_min  0.3871
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS version 2008/1, G.M Sheldrick, University of 
G\"ttingen, Germany, 2008.
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.327
_exptl_crystal_description       'triangular prism'
_exptl_crystal_F_000             1350
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.30
_refine_diff_density_max         3.625
_refine_diff_density_min         -1.278
_refine_diff_density_rms         0.140
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.02(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.159
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     392
_refine_ls_number_reflns         11318
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.159
_refine_ls_R_factor_all          0.0594
_refine_ls_R_factor_gt           0.0575
_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^)+(0.0559P)^2^+12.6705P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1420
_refine_ls_wR_factor_ref         0.1439
_reflns_number_gt                10973
_reflns_number_total             11318
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja2001049_si_010.cif
_cod_data_source_block           Compound5b
_cod_database_code               4106036