Aluminacyclopropene-phosphine complex: a carbene-exchange reagent.
Xu, Huihui; León Baeza, José Miguel; Baceiredo, Antoine; Rojas Guerrero, René Segundo; Saffon-Merceron, Nathalie; Branchadell, Vicenç; Kato, Tsuyoshi; Chemical science 16 (2025) 14225–14230; doi:10.1039/d5sc03846d

data_1574960
_publ_section_title
;
 Aluminacyclopropene-phosphine complex: a carbene-exchange reagent.
;
_journal_issue                   31
_journal_name_full               'Chemical science'
_journal_page_first              14225
_journal_page_last               14230
_journal_paper_doi               10.1039/d5sc03846d
_journal_volume                  16
_journal_year                    2025
_chemical_formula_sum            'C46 H79 Al N5 P Si'
_chemical_formula_weight         788.18
_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
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/2
_audit_update_record
;
2025-04-04 deposited with the CCDC.	2025-06-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.351(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.8960(14)
_cell_length_b                   17.3957(16)
_cell_length_c                   19.5978(17)
_cell_measurement_reflns_used    9937
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      24.18
_cell_measurement_theta_min      2.34
_cell_volume                     4589.6(7)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT (Sheldrick 2015)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker kappa APEX-II CCD Quazar'
_diffrn_measurement_method       'Phi and omega scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.2477
_diffrn_reflns_av_unetI/netI     0.1574
_diffrn_reflns_Laue_measured_fraction_full 0.984
_diffrn_reflns_Laue_measured_fraction_max 0.984
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            75496
_diffrn_reflns_point_group_measured_fraction_full 0.984
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        24.230
_diffrn_reflns_theta_max         24.230
_diffrn_reflns_theta_min         1.588
_diffrn_source                   'Incoatec microfocus sealed tube'
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.7299
_exptl_absorpt_correction_T_min  0.6625
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker-AXS)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.141
_exptl_crystal_description       needle
_exptl_crystal_F_000             1728
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.070
_exptl_crystal_size_min          0.040
_refine_diff_density_max         0.509
_refine_diff_density_min         -0.577
_refine_diff_density_rms         0.083
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     541
_refine_ls_number_reflns         7286
_refine_ls_number_restraints     144
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.2300
_refine_ls_R_factor_gt           0.1028
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0933P)^2^+16.4494P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2089
_refine_ls_wR_factor_ref         0.2851
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3250
_reflns_number_total             7286
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc03846d2.cif
_cod_data_source_block           6
_cod_depositor_comments
'Adding full bibliography for 1574958--1574964.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               1574960
_shelx_shelxl_version_number     2019/2
_shelx_estimated_absorpt_t_min   0.979
_shelx_estimated_absorpt_t_max   0.994
_shelx_res_checksum              99638