An anionic aluminabenzene bearing aromatic and ambiphilic contributions.
Nakamura, Taichi; Suzuki, Katsunori; Yamashita, Makoto; Journal of the American Chemical Society 136 (2014) 9276–9279; doi:10.1021/ja504771d

data_4122077
_publ_section_title
;
 An anionic aluminabenzene bearing aromatic and ambiphilic contributions.
;
_journal_issue                   26
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9276
_journal_page_last               9279
_journal_paper_doi               10.1021/ja504771d
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C52 H88 Al Li N4 O Si2'
_chemical_formula_weight         875.36
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
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_cell_angle_beta                 64.988(4)
_cell_angle_gamma                86.602(9)
_cell_formula_units_Z            2
_cell_length_a                   13.647(2)
_cell_length_b                   14.003(3)
_cell_length_c                   15.254(3)
_cell_measurement_reflns_used    5699
_cell_measurement_temperature    93.1500
_cell_measurement_theta_max      31.2514
_cell_measurement_theta_min      2.6375
_cell_volume                     2636.2(9)
_computing_cell_refinement       'RIGAKU CrystalClear'
_computing_data_collection       'RIGAKU CrystalClear'
_computing_data_reduction        'RIGAKU CrystalClear'
_computing_molecular_graphics    'ORTEP-3 version2.02 (Farrugia, 1997)'
_computing_publication_material
'Yadokari-XG 2009 (Wakita,Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR-97
_diffrn_ambient_temperature      93.1500
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.963
_diffrn_measured_fraction_theta_max 0.963
_diffrn_measurement_device_type  'Rigaku VariMax Saturn'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  Confocal
_diffrn_radiation_source         'rotating-anode X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0494
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_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            21953
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    0.123
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8570
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.103
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Platelet
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.632
_refine_diff_density_min         -0.493
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
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_refine_ls_number_reflns         11650
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_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.1202
_refine_ls_R_factor_gt           0.0774
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0831P)^2^+1.2249P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1733
_refine_ls_wR_factor_ref         0.2041
_reflns_number_gt                7580
_reflns_number_total             11650
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja504771d_si_002.cif
_cod_data_source_block           tn23p1y1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z saulius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 4122073--4122078.cif.
;
_cod_original_cell_volume        2636.2(8)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4122077