Lewis base stabilized lithium TMP-aluminates: an unexpected fragmentation and capture reaction involving cyclic ether 1,4-dioxane
García-Álvarez, Joaquín; Hevia, Eva; Kennedy, Alan R.; Klett, Jan; Mulvey, Robert E.; Chemical Communications (Cambridge, United Kingdom)  (2007) 2402–2404; doi:10.1039/b700785j

data_7101971
_publ_section_title
;
 Lewis base stabilized lithium TMP-aluminates: an unexpected fragmentation
 and capture reaction involving cyclic ether 1,4-dioxane
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   23
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2402
_journal_page_last               2404
_journal_paper_doi               10.1039/b700785j
_journal_year                    2007
_chemical_formula_sum            'C30 H64 Al Li N2'
_chemical_formula_weight         486.75
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 105.995(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5631(2)
_cell_length_b                   18.6410(5)
_cell_length_c                   10.6743(3)
_cell_measurement_reflns_used    3841
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.00
_cell_volume                     1637.92(7)
_computing_data_collection       'Denzo & Collect'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.050
_diffrn_reflns_av_sigmaI/netI    0.0520
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            23836
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.98
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    0.987
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.163
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.04(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         7415
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0912
_refine_ls_R_factor_gt           0.0559
_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^)+(0.0526P)^2^+0.4850P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1144
_refine_ls_wR_factor_ref         0.1321
_reflns_number_gt                5436
_reflns_number_total             7415
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b700785j.txt
_cod_data_source_block           grem245
_cod_original_sg_symbol_H-M      P21
_cod_database_code               7101971