Steric stabilization of a monomeric proalumatrane: experimental and theoretical studies.
Su, Weiping; Kobayashi, Junji; Ellern, Arkady; Kawashima, Takayuki; Verkade, John G.; Inorganic chemistry 46 (2007) 7953–7959; doi:10.1021/ic7010327

data_4339793
_publ_section_title
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 Steric stabilization of a monomeric proalumatrane: experimental and
 theoretical studies.
;
_journal_issue                   19
_journal_name_full               'Inorganic chemistry'
_journal_page_first              7953
_journal_page_last               7959
_journal_paper_doi               10.1021/ic7010327
_journal_volume                  46
_journal_year                    2007
_chemical_formula_moiety         'C72 H96 Al2 N2 O6, 2(C7 H8) '
_chemical_formula_sum            'C86 H112 Al2 N2 O6'
_chemical_formula_weight         1323.74
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 106.023(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.550(10)
_cell_length_b                   12.363(4)
_cell_length_c                   26.166(8)
_cell_measurement_reflns_used    922
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      24.72
_cell_measurement_theta_min      2.60
_cell_volume                     7944(5)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1288
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_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -33
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            35099
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.37
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  1
_exptl_absorpt_correction_T_min  0.92
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker, SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.107
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2864
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.567
_refine_diff_density_min         -0.535
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_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         9377
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      0.975
_refine_ls_R_factor_all          0.1926
_refine_ls_R_factor_gt           0.0797
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1241P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1811
_refine_ls_wR_factor_ref         0.2439
_reflns_number_gt                4313
_reflns_number_total             9377
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic7010327-file002.cif
_cod_data_source_block           ver114
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4339793