Donor-free 9,10-dihydro-9,10-dialuminaanthracenes.
Lückert, Paula L; Gilmer, Jannik; Virovets, Alexander; Lerner, Hans-Wolfram; Wagner, Matthias; Chemical science 16 (2024) 147–155; doi:10.1039/d4sc06940d

data_1573185
_publ_section_title
;
 Donor-free 9,10-dihydro-9,10-dialuminaanthracenes.
;
_journal_issue                   1
_journal_name_full               'Chemical science'
_journal_page_first              147
_journal_page_last               155
_journal_paper_doi               10.1039/d4sc06940d
_journal_volume                  16
_journal_year                    2024
_chemical_formula_sum            'C20 H28 Al2 Br2 O2'
_chemical_formula_weight         514.20
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2024-09-22 deposited with the CCDC.	2024-11-18 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 120.073(18)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.694(3)
_cell_length_b                   7.0404(6)
_cell_length_c                   19.080(4)
_cell_measurement_reflns_used    2361
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      26.3180
_cell_measurement_theta_min      4.3500
_cell_volume                     2289.4(8)
_computing_cell_refinement       'CrysAlisPro 1.171.42.43a (Rigaku OD, 2022)'
_computing_data_collection       'X-Area (Stoe & Cie, 2001)'
_computing_data_reduction        'CrysAlisPro 1.171.42.43a (Rigaku OD, 2022)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (G. M. Sheldrick, 2015)'
_diffrn_ambient_temperature      90(2)
_diffrn_detector                 'image plate'
_diffrn_detector_area_resol_mean 6.67
_diffrn_detector_type            'STOE image plate (34 cm diameter)'
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS II two-circle-diffractometer'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0444
_diffrn_reflns_av_unetI/netI     0.0748
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.994
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            6600
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.994
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.384
_diffrn_reflns_theta_min         4.140
_diffrn_source                   'Genix 3D I\mS microfocus X-ray source'
_exptl_absorpt_coefficient_mu    3.629
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.25299
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.42.43a (Rigaku Oxford Diffraction, 2022)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.492
_exptl_crystal_description       prism
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.080
_refine_diff_density_max         1.592
_refine_diff_density_min         -0.606
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     121
_refine_ls_number_reflns         2323
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.0608
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0474P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0956
_refine_ls_wR_factor_ref         0.0984
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1690
_reflns_number_total             2323
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d4sc06940d3.cif
_cod_data_source_block           2OEt22_wa3310
_cod_depositor_comments
'Adding full bibliography for 1573178--1573190.cif.'
_cod_original_cell_volume        2289.4(7)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               1573185
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.516
_shelx_estimated_absorpt_t_max   0.760
_shelx_res_checksum              53611
_shelx_hkl_checksum              36242