Structurally Powered Synergic 2,2,6,6-Tetramethylpiperidine Bimetallics: New Reflections through Lithium-Mediated Ortho Aluminations
Robert E. Mulvey; David R. Armstrong; Ben Conway; Elaine Crosbie; Alan R. Kennedy; Stuart D. Robertson; Inorganic Chemistry 50 (2011) 12241–12251; doi:10.1021/ic200562h

data_4327056
_publ_section_title
;
 Structurally Powered Synergic 2,2,6,6-Tetramethylpiperidine Bimetallics:
 New Reflections through Lithium-Mediated Ortho Aluminations
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12241
_journal_page_last               12251
_journal_paper_doi               10.1021/ic200562h
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C28 H51 Al Li N O2'
_chemical_formula_sum            'C28 H51 Al Li N O2'
_chemical_formula_weight         467.62
_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                 101.987(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.6847(5)
_cell_length_b                   19.6467(9)
_cell_length_c                   12.9662(6)
_cell_measurement_reflns_used    11976
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      29.7416
_cell_measurement_theta_min      2.8260
_cell_volume                     2911.7(2)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.942
_diffrn_measurement_device_type  'Xcalibur, Sapphire3, Gemini'
_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  0.0282
_diffrn_reflns_av_sigmaI/netI    0.0323
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            22283
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         28.99
_diffrn_reflns_theta_min         2.83
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.78517
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan  5 2010,16:28:46)
empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.067
_exptl_crystal_description       block
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.490
_refine_diff_density_min         -0.409
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.098
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     353
_refine_ls_number_reflns         7290
_refine_ls_number_restraints     121
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.0686
_refine_ls_R_factor_gt           0.0499
_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^)+(0.0765P)^2^+0.4884P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1365
_refine_ls_wR_factor_ref         0.1438
_reflns_number_gt                5416
_reflns_number_total             7290
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200562h_si_001_1.cif
_cod_data_source_block           srbc1007
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4327056