NHC-ligated indenyl- and fluorenyl-substituted Alanes and Gallanes: synthons towards indenyl- and fluorenyl-bridged (AlC)<sub><i>n</i></sub>-heterocycles (<i>n</i> = 2,3).
Werner, Luis; Hagn, Julika; Gerstner, Alexander; Radius, Udo; Dalton transactions (Cambridge, England : 2003) 53 (2024) 5932–5946; doi:10.1039/d4dt00244j

data_7715401
_publ_section_title
;
 NHC-ligated indenyl- and fluorenyl-substituted Alanes and Gallanes:
 synthons towards indenyl- and fluorenyl-bridged
 (AlC)<sub><i>n</i></sub>-heterocycles (<i>n</i> = 2,3).
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5932
_journal_page_last               5946
_journal_paper_doi               10.1039/d4dt00244j
_journal_volume                  53
_journal_year                    2024
_chemical_absolute_configuration unknown
_chemical_formula_moiety         'C20 H23 Al N2'
_chemical_formula_sum            'C20 H23 Al N2'
_chemical_formula_weight         318.38
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-01-25 deposited with the CCDC.	2024-03-04 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.4966(2)
_cell_length_b                   13.6726(3)
_cell_length_c                   15.2417(3)
_cell_measurement_reflns_used    5851
_cell_measurement_temperature    100.01(10)
_cell_measurement_theta_max      76.6960
_cell_measurement_theta_min      4.3800
_cell_volume                     1770.64(7)
_computing_cell_refinement       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_collection       'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_data_reduction        'CrysAlisPro 1.171.40.53 (Rigaku OD, 2019)'
_computing_molecular_graphics    'ShelXLe (Huebschle et all, 2011)'
_computing_publication_material  'SHELXL-2014/6 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 10.0000
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0404
_diffrn_reflns_av_unetI/netI     0.0412
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.976
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            10475
_diffrn_reflns_point_group_measured_fraction_full 0.955
_diffrn_reflns_point_group_measured_fraction_max 0.919
_diffrn_reflns_theta_full        72.000
_diffrn_reflns_theta_max         77.485
_diffrn_reflns_theta_min         4.344
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.989
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.518
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.41.73a (Rigaku Oxford Diffraction, 2020)
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    1.194
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.280
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.090
_refine_diff_density_max         0.175
_refine_diff_density_min         -0.296
_refine_diff_density_rms         0.042
_refine_ls_abs_structure_details
;
 Flack x determined using 1247 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     220
_refine_ls_number_reflns         3464
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0385
_refine_ls_R_factor_gt           0.0358
_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^)+(0.0426P)^2^+0.4172P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0909
_refine_ls_wR_factor_ref         0.0927
_reflns_Friedel_coverage         0.643
_reflns_Friedel_fraction_full    0.895
_reflns_Friedel_fraction_max     0.842
_reflns_number_gt                3263
_reflns_number_total             3464
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4dt00244j2.cif
_cod_data_source_block           compound_6
_cod_depositor_comments
'Adding full bibliography for 7715387--7715402.cif.'
_cod_database_code               7715401
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.769
_shelx_estimated_absorpt_t_max   0.916
_shelx_res_checksum              44901