Al(OCArF3)<sub>3</sub> - a thermally stable Lewis superacid.
Kögel, Julius F; Timoshkin, Alexey Y.; Schröder, Artem; Lork, Enno; Beckmann, Jens; Chemical science 9 (2018) 8178–8183; doi:10.1039/c8sc02981d

data_1550006
_publ_section_title
;
 Al(OCArF3)<sub>3</sub> - a thermally stable Lewis superacid.
;
_journal_issue                   43
_journal_name_full               'Chemical science'
_journal_page_first              8178
_journal_page_last               8183
_journal_paper_doi               10.1039/c8sc02981d
_journal_volume                  9
_journal_year                    2018
_chemical_formula_moiety         'C61 H10 Al F45 O4, C7 H8'
_chemical_formula_sum            'C68 H18 Al F45 O4'
_chemical_formula_weight         1780.80
_chemical_properties_physical    Moisture-sensitive
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2018-07-19
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-08-24 deposited with the CCDC.
2018-10-02 downloaded from the CCDC.
;
_cell_angle_alpha                92.2640(10)
_cell_angle_beta                 102.0690(10)
_cell_angle_gamma                109.5180(10)
_cell_formula_units_Z            2
_cell_length_a                   12.4730(5)
_cell_length_b                   12.4862(5)
_cell_length_c                   24.3363(9)
_cell_measurement_reflns_used    9341
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      27.10
_cell_measurement_theta_min      2.50
_cell_volume                     3468.7(2)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100.0
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture CMOS'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0435
_diffrn_reflns_av_unetI/netI     0.0192
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            121416
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.027
_diffrn_reflns_theta_max         25.027
_diffrn_reflns_theta_min         2.155
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.200
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6814
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1118 before and 0.0601 after correction. The Ratio of minimum to maximum transmission is 0.9140. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.705
_exptl_crystal_description       block
_exptl_crystal_F_000             1752
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Toluene'
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.291
_refine_diff_density_rms         0.049
_refine_ls_extinction_coef       0.0045(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1067
_refine_ls_number_reflns         12246
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0398
_refine_ls_R_factor_gt           0.0310
_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^)+(0.0382P)^2^+2.4976P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0842
_reflns_Friedel_coverage         0.000
_reflns_number_gt                10354
_reflns_number_total             12246
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc02981d2.cif
_cod_data_source_block           KoegelJ180706
_cod_depositor_comments
'Adding full bibliography for 1550001--1550014.cif.'
_cod_database_code               1550006
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.980
_shelx_estimated_absorpt_t_min   0.942
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C4(H4A,H4B), C6(H6A,H6B)
2.b Aromatic/amide H refined with riding coordinates:
 C103(H103), C101(H101), C102(H102), C104(H104), C105(H105)
2.c Idealised Me refined as rotating group:
 C5(H5A,H5B,H5C), C7(H7A,H7B,H7C), C106(H10A,H10B,H10C)
3. The unit cell contains two molecules of toluene and one non-coordinating molecule of diethyl ether. One of the toluene molecules and the diethyl ether molecule have been treated as a diffuse contribution to the overall scattering without specific atom positions by SMBTX-MASK/OLEX
;
_olex2_submission_special_instructions 'No special instructions were received'