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_1550010
_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         'C63 H15 Al F45 O4 P'
_chemical_formula_sum            'C63 H15 Al F45 O4 P'
_chemical_formula_weight         1748.70
_chemical_properties_physical    Moisture-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_date             2018-07-27
_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                90
_cell_angle_beta                 105.820(2)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   24.8884(12)
_cell_length_b                   23.4948(12)
_cell_length_c                   22.4273(10)
_cell_measurement_reflns_used    9928
_cell_measurement_temperature    100.0
_cell_measurement_theta_max      27.12
_cell_measurement_theta_min      2.33
_cell_volume                     12617.6(11)
_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 (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.0
_diffrn_detector                 'Bruker PHOTON area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CMOS area detector'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture area detector'
_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  0.1120
_diffrn_reflns_av_unetI/netI     0.0362
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       30
_diffrn_reflns_limit_h_min       -30
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            411726
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.000
_diffrn_reflns_theta_min         2.169
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.242
_exptl_absorpt_correction_T_max  0.745552
_exptl_absorpt_correction_T_min  0.613747
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 TWINABS-2012/1 (Bruker,2012) was used for absorption correction.

Final HKLF 4 output contains 354332 reflections, Rint = 0.1440
 (77093 with I > 3sig(I), Rint = 0.0544)
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.841
_exptl_crystal_description       block
_exptl_crystal_F_000             6864
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Dichloromethane'
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         1.076
_refine_diff_density_min         -0.721
_refine_diff_density_rms         0.151
_refine_ls_extinction_coef       0.00045(4)
_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   1.128
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     2060
_refine_ls_number_reflns         24752
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.1133
_refine_ls_R_factor_gt           0.0975
_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^)+246.6535P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2325
_refine_ls_wR_factor_ref         0.2412
_reflns_Friedel_coverage         0.000
_reflns_number_gt                20129
_reflns_number_total             24752
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc02981d2.cif
_cod_data_source_block           koegelj160802_0ma
_cod_depositor_comments
'Adding full bibliography for 1550001--1550014.cif.'
_cod_database_code               1550010
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.965
_shelx_estimated_absorpt_t_min   0.942
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C190(H19A,H19B), C192(H19F,H19G), C195(H19K,H19L), C197(H19P,H19Q), C199(H19U,
 H19V), C201(H20D,H20E)
2.b Idealised Me refined as rotating group:
 C191(H19C,H19D,H19E), C194(H19H,H19I,H19J), C196(H19M,H19N,H19O), C198(H19R,
 H19S,H19T), C200(H20A,H20B,H20C), C202(H20F,H20G,H20H)
3. The unit cell contains Dichloromethane which has been treated as a diffuse 
 contribution to the overall scattering without specific atom positions by Squeeze/OLEX
;
_olex2_submission_special_instructions 'No special instructions were received'