Calix[4]pyrrole aluminate: a planar tetracoordinate aluminum(III) anion and its unusual Lewis acidity.
Ebner, Fabian; Wadepohl, Hubert; Greb, Lutz; Journal of the American Chemical Society  (2019) –; doi:10.1021/jacs.9b10628

data_4129066
_publ_section_title
;
 Calix[4]pyrrole aluminate: a planar tetracoordinate aluminum(III) anion
 and its unusual Lewis acidity.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.9b10628
_journal_year                    2019
_chemical_formula_moiety         'C24 H20 P, C32 H40 Al N4 O'
_chemical_formula_sum            'C56 H60 Al N4 O P'
_chemical_formula_weight         863.03
_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'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2019-07-09
_audit_creation_method
;
Olex2 1.2
(compiled May 29 2018 13:30:08 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 108.84(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.166(3)
_cell_length_b                   21.376(4)
_cell_length_c                   17.171(3)
_cell_measurement_reflns_used    2598
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      40
_cell_measurement_theta_min      1.5
_cell_volume                     4573.6(18)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'HKL-2000 (Otwinowski & Minor, 2000)'
_computing_data_reduction        'DENZO (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      120(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'NONIUS KAPPA CCD'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1043
_diffrn_reflns_av_unetI/netI     0.1560
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            25313
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.981
_diffrn_reflns_theta_min         2.281
_exptl_absorpt_coefficient_mu    0.125
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1840
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.482
_refine_diff_density_min         -0.389
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     576
_refine_ls_number_reflns         13278
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.1763
_refine_ls_R_factor_gt           0.0679
_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^)+(0.0731P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1392
_refine_ls_wR_factor_ref         0.1740
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6247
_reflns_number_total             13278
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja9b10628_si_004.cif
_cod_data_source_block           fe453_p2
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4129066
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.981
_shelx_estimated_absorpt_t_min   0.963
_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:
 C31(H31A,H31B), C32(H32A,H32B), C33(H33A,H33B), C34(H34A,H34B)
2.b Aromatic/amide H refined with riding coordinates:
 C42(H42), C43(H43), C44(H44), C45(H45), C46(H46), C48(H48), C49(H49),
 C50(H50), C51(H51), C52(H52), C54(H54), C55(H55), C56(H56), C57(H57), C58(H58),
  C60(H60), C61(H61), C62(H62), C63(H63), C64(H64), C2(H2), C3(H3), C7(H7),
 C8(H8), C12(H12), C13(H13), C17(H17), C18(H18)
2.c Idealised Me refined as rotating group:
 C21(H21A,H21B,H21C), C22(H22A,H22B,H22C), C23(H23A,H23B,H23C), C24(H24A,H24B,
 H24C), C25(H25A,H25B,H25C), C26(H26A,H26B,H26C), C27(H27A,H27B,H27C), C28(H28A,
 H28B,H28C)
;
_shelx_res_checksum              23554
_shelx_hkl_checksum              36423
_olex2_submission_special_instructions 'No special instructions were received'