A new weakly coordinating aluminate anion incorporating a chelating perfluoro-bis-anilido ligand.
Smith, Joshua C.; Ma, Kuangbiao; Piers, Warren E.; Parvez, Masood; McDonald, Robert; Dalton transactions (Cambridge, England : 2003) 39 (2010) 10256–10263; doi:10.1039/c0dt00846j

data_7026884
_publ_section_title
;
 A new weakly coordinating aluminate anion incorporating a chelating
 perfluoro-bis-anilido ligand.
;
_journal_issue                   42
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10256
_journal_page_last               10263
_journal_paper_doi               10.1039/c0dt00846j
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C44 H16 Al F28 Li N4 O2'
_chemical_formula_weight         1198.53
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 109.349(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8290(10)
_cell_length_b                   27.656(6)
_cell_length_c                   19.277(4)
_cell_measurement_reflns_used    14647
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.01
_cell_measurement_theta_min      2.55
_cell_volume                     4441.1(15)
_computing_cell_refinement       'HKL DENZO (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Hooft, 1998)'
_computing_data_reduction        'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1976)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SAPI91 (Fan, 1991)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       ' \w and \f '
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0330
_diffrn_reflns_av_sigmaI/netI    0.0508
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            14647
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.55
_exptl_absorpt_coefficient_mu    0.210
_exptl_absorpt_correction_T_max  0.9834
_exptl_absorpt_correction_T_min  0.9592
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SORTAV: (Blessing, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.793
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             2368
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.260
_refine_diff_density_rms         0.050
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     724
_refine_ls_number_reflns         7802
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0768
_refine_ls_R_factor_gt           0.0417
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.044P)^2^+2.07P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0887
_refine_ls_wR_factor_ref         0.1045
_reflns_number_gt                5320
_reflns_number_total             7802
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00846j.txt
_cod_data_source_block           Compound_3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        4441.1(14)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7026884