Synthesis, structure, and catalytic activity of dinuclear aluminium bis(amidinate) and bis(guanidinate) complexes
Rösch, Andreas; Seifert, Fabian; Vass, Valentin; Görls, Helmar; Kretschmer, Robert; New Journal of Chemistry 45 (2021) 972–981; doi:10.1039/D0NJ05007E

data_7060181
_publ_section_title
;
 Synthesis, structure, and catalytic activity of dinuclear aluminium
 bis(amidinate) and bis(guanidinate) complexes
;
_journal_issue                   2
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              972
_journal_page_last               981
_journal_paper_doi               10.1039/D0NJ05007E
_journal_volume                  45
_journal_year                    2021
_chemical_formula_moiety         'C40 H68 Al2 N4'
_chemical_formula_sum            'C40 H68 Al2 N4'
_chemical_formula_weight         658.94
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-10-09 deposited with the CCDC.	2020-11-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 103.849(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.1318(2)
_cell_length_b                   13.1042(3)
_cell_length_c                   17.6741(3)
_cell_measurement_reflns_used    11805
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      73.583
_cell_measurement_theta_min      4.245
_cell_volume                     2053.49(8)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43 (Rigaku OD, 2015)'
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.965
_diffrn_measurement_device_type  'Xcalibur, AtlasS2, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0188
_diffrn_reflns_av_unetI/netI     0.0177
_diffrn_reflns_Laue_measured_fraction_full 0.991
_diffrn_reflns_Laue_measured_fraction_max 0.965
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            11805
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.965
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.583
_diffrn_reflns_theta_min         4.245
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.854
_exptl_absorpt_correction_T_max  0.952
_exptl_absorpt_correction_T_min  0.918
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.38.43 (Rigaku Oxford Diffraction, 2015) 
Numerical absorption correction based on gaussian integration over 
   a multifaceted crystal model 
Empirical absorption correction using spherical harmonics, 
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.066
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             724
_exptl_crystal_size_max          0.137
_exptl_crystal_size_mid          0.120
_exptl_crystal_size_min          0.074
_refine_diff_density_max         0.278
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3998
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0365
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0504P)^2^+0.5635P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0910
_refine_ls_wR_factor_ref         0.0936
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3693
_reflns_number_total             3998
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0nj05007e2.cif
_cod_data_source_block           FO7074_3a
_cod_depositor_comments
'Adding full bibliography for 7060181--7060191.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7060181
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.892
_shelx_estimated_absorpt_t_max   0.939
_shelx_res_checksum              52612