Aluminium-containing ring systems and N-heterocycle formation via nitrile insertions into Al‒N bonds
Gibson, Vernon C.; Redshaw, Carl; White, Andrew J. P.; Williams, David J.; Chemical Communications  (2001) 79–; doi:10.1039/b007810g

data_7111149
_publ_section_title
;
 Aluminium-containing ring systems and N-heterocycle formation via nitrile
 insertions into Al--N bonds
;
_journal_issue                   1
_journal_name_full               'Chemical Communications'
_journal_page_first              79
_journal_paper_doi               10.1039/b007810g
_journal_year                    2001
_chemical_formula_sum            'C24 H42 Al4 N6'
_chemical_formula_weight         522.56
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
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_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7173(5)
_cell_length_b                   16.8678(7)
_cell_length_c                   20.416(2)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      24.08
_cell_measurement_theta_min      10.76
_cell_volume                     3002.0(4)
_computing_cell_refinement       'Siemens XSCANS'
_computing_data_collection       'Siemens XSCANS'
_computing_data_reduction        'Siemens SHELXTL'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'Siemens SHELXTL'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measurement_device       'Siemens P4'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0725
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            2182
_diffrn_reflns_theta_max         59.98
_diffrn_reflns_theta_min         6.68
_diffrn_standards_interval_count 97
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    1.613
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Clear
_exptl_crystal_density_diffrn    1.156
_exptl_crystal_description       prisms
_exptl_crystal_F_000             1120
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.420
_refine_diff_density_min         -0.272
_refine_diff_density_rms         0.081
_refine_ls_extinction_method     none
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_refine_ls_goodness_of_fit_obs   1.119
_refine_ls_matrix_type           full
_refine_ls_number_parameters     162
_refine_ls_number_reflns         1961
_refine_ls_number_restraints     2
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_refine_ls_restrained_S_obs      1.118
_refine_ls_R_factor_all          0.1160
_refine_ls_R_factor_obs          0.0693
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1223P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.2410
_refine_ls_wR_factor_obs         0.1729
_reflns_number_observed          1479
_reflns_number_total             2182
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            b007810gsup1.cif
_cod_data_source_block           VG9855
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1223P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.1223P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      Pbca
_cod_original_formula_sum        'C24 H42 N6 Al4'
_cod_database_code               7111149