Selective Mono- and Dimetallation of a Group 3 Sandwich Complex
Martinez-Martinez, Antonio J.; Kennedy, Alan; Paprocki, Valerie; Fantuzzi, Felipe; Dewhurst, Rian David; O'Hara, Charles T.; Braunschweig, Holger; Mulvey, Robert E.; Chemical Communications  (2019) –; doi:10.1039/C9CC03825F

data_7123894
_publ_section_title
;
 Selective Mono- and Dimetallation of a Group 3 Sandwich Complex
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/C9CC03825F
_journal_year                    2019
_chemical_formula_moiety
;
(C55 H99 Al2 Li2 N2 O2 Sc) . 1.25(C7 H14)
;
_chemical_formula_sum            'C63.75 H116.5 Al2 Li2 N2 O2 Sc'
_chemical_formula_weight         1055.88
_chemical_properties_physical
Air-sensitive,Moisture-sensitive,Oxygen-sensitive
_space_group_crystal_system      tetragonal
_space_group_IT_number           135
_space_group_name_Hall           '-P 4c 2ab'
_space_group_name_H-M_alt        'P 42/m b c'
_symmetry_space_group_name_Hall  '-P 4c 2ab'
_symmetry_space_group_name_H-M   'P 42/m b c'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-06-12 deposited with the CCDC.    2019-07-19 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.6285(4)
_cell_length_b                   20.6285(4)
_cell_length_c                   14.8136(5)
_cell_measurement_reflns_used    4049
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      72.9070
_cell_measurement_theta_min      5.2230
_cell_volume                     6303.7(3)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_collection
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
;
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur, Sapphire3, Gemini'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0577
_diffrn_reflns_av_unetI/netI     0.0311
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            22083
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         69.999
_diffrn_reflns_theta_min         3.030
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    1.568
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.73124
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.113
_exptl_crystal_description       needle
_exptl_crystal_F_000             2328
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.536
_refine_diff_density_min         -0.607
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     338
_refine_ls_number_reflns         3105
_refine_ls_number_restraints     312
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.1164
_refine_ls_R_factor_gt           0.0900
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1882P)^2^+1.7892P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2685
_refine_ls_wR_factor_ref         0.2919
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2072
_reflns_number_total             3105
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9cc03825f2.cif
_cod_data_source_block           ajm17rsmart_squeezed
_cod_original_formula_sum        'C63.75 H116.50 Al2 Li2 N2 O2 Sc'
_cod_database_code               7123894
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              65010