Organo-aluminium and -gallium complexes with ω-NH-functional alkoxide ligands
Willner, Alexander; Hepp, Alexander; Mitzel, Norbert W.; Dalton Transactions  (2008) 6832–6842; doi:10.1039/b811792f

data_7004760
_publ_section_title
;
 Organo-aluminium and -gallium complexes with \w-NH-functional alkoxide
 ligands
;
_journal_issue                   47
_journal_name_full               'Dalton Transactions'
_journal_page_first              6832
_journal_page_last               6842
_journal_paper_doi               10.1039/b811792f
_journal_year                    2008
_chemical_formula_sum            'C28 H64 Ga2 N2 O2'
_chemical_formula_weight         600.25
_chemical_name_common
;Bis-(mu2-O-(2-(tert.-butylamino)ethanolato-O))-tetrakis-
(tert.-butyl)digallium
;
_chemical_name_systematic
;
Bis-{mu2-O-[2-(tert.-butylamino)ethanolato-O]}-tetrakis-(tert.-butyl)digallium
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.722(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.1031(15)
_cell_length_b                   17.365(2)
_cell_length_c                   8.9371(12)
_cell_measurement_reflns_used    900
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      22.5
_cell_measurement_theta_min      1
_cell_volume                     1703.2(4)
_computing_cell_refinement       'SAINT (Bruker AXS, 2000)'
_computing_data_collection       'SMART (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT and SADABS (Bruker AXS, 2000)'
_computing_molecular_graphics
;
ORTEP3, L.J. Farrugia, J. Appl. Cryst. (1997) 30, 565
;
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean 80
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0926
_diffrn_reflns_av_sigmaI/netI    0.0951
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            19618
_diffrn_reflns_theta_full        30.07
_diffrn_reflns_theta_max         30.07
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    1.605
_exptl_absorpt_correction_T_max  0.8823
_exptl_absorpt_correction_T_min  0.6898
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Corrections were done with the SADABS program, utilizing the none merged
raw data obtained from the integration process. Integration and final cell
refinement were done with SAINT.

SADABS reports ratio of Tmin/Tmax = 0.787736
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       sticks
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.955
_refine_diff_density_min         -0.588
_refine_diff_density_rms         0.098
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         4995
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.1139
_refine_ls_R_factor_gt           0.0594
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0677P)^2^+0.0558P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1299
_refine_ls_wR_factor_ref         0.1504
_reflns_number_gt                3007
_reflns_number_total             4995
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b811792f.txt
_cod_data_source_block           2d
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7004760