Rare-earth metal bis(tetramethylaluminate) complexes supported by a sterically crowded triazenido ligand.
Litlabø, Rannveig; Lee, Hyui Sul; Niemeyer, Mark; Törnroos, Karl W; Anwander, Reiner; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6815–6825; doi:10.1039/b925837j

data_7025220
_publ_section_title
;
 Rare-earth metal bis(tetramethylaluminate) complexes supported by a
 sterically crowded triazenido ligand.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6815
_journal_page_last               6825
_journal_paper_doi               10.1039/b925837j
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C44 H60 Al N3'
_chemical_formula_sum            'C44 H60 Al N3'
_chemical_formula_weight         657.93
_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                 97.496(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.9941(7)
_cell_length_b                   13.1084(5)
_cell_length_c                   17.6874(7)
_cell_measurement_reflns_used    13131
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.116
_cell_measurement_theta_min      2.204
_cell_volume                     3906.5(3)
_computing_cell_refinement
;
Bruker (2008). SAINT, version 6.45A, Bruker AXS Inc., Madison,
Wisconsin, USA.
;
_computing_data_collection
;
Bruker (1999). SMART, version 5.054, Bruker AXS Inc., Madison,
Wisconsin, USA.
;
_computing_data_reduction
;
Bruker (2004). SAINT, version 6.45a, Bruker AXS Inc., Madison,
Wisconsin, USA.
;
_computing_molecular_graphics
;
Brandenburg, K. (2007). DIAMOND. Version 3.1. Crystal Impact GbR, Bonn,
Germany.
;
_computing_publication_material
;
Bruker AXS (2003). SHELXTL. Version 6.14. Bruker AXS Inc., Madison,
Wisconsin, USA.
;
_computing_structure_refinement
;
Sheldrick, G. M. (2008). Acta Crystallographica, A64, 112-122.
;
_computing_structure_solution
;
Sheldrick, G. M. (2008). Acta Crystallographica, A64, 112-122.
;
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean '48 \um'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker-AXS SMART 2K CCD'
_diffrn_measurement_method       'omega scans'
_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  0.0522
_diffrn_reflns_av_sigmaI/netI    0.0335
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            53319
_diffrn_reflns_theta_full        27.17
_diffrn_reflns_theta_max         27.17
_diffrn_reflns_theta_min         1.56
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6643
_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            'shiny golden yellow'
_exptl_crystal_density_diffrn    1.119
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'elongated bipyramidal prism'
_exptl_crystal_F_000             1432
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     447
_refine_ls_number_reflns         8687
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0639
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0335P)^2^+2.6617P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0995
_refine_ls_wR_factor_ref         0.1066
_reflns_number_gt                7026
_reflns_number_total             8687
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b925837j.txt
_cod_data_source_block           rl095
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7025220