Lewis base properties of tris(trimethylstannyl)amine: unusually short M‒N bonds of the adduct compounds [X3M·N(SnMe3)3] (X = Cl, Br; M = Al, Ga, In) and [Cl2(CH3)M·N(SnMe3)3] (M = Al, Ga)
Q. m. Cheng; O. Stark; K. Merz; M. Winter; R. A. Fischer; J. Chem. Soc., Dalton Trans.  (2002) 2933–2936; doi:10.1039/b203489c

data_7011748
_publ_section_title
;
 Lewis base properties of tris(trimethylstannyl)amine: unusually short
 M--N bonds of the adduct compounds [X3M&#x00B7;N(SnMe3)3] (X = Cl, Br;
 M = Al, Ga, In) and [Cl2(CH3)M&#x00B7;N(SnMe3)3] (M = Al, Ga)
;
_journal_issue                   14
_journal_name_full               'J. Chem. Soc., Dalton Trans.'
_journal_page_first              2933
_journal_page_last               2936
_journal_paper_doi               10.1039/b203489c
_journal_year                    2002
_chemical_formula_sum            'C10 H30 Cl2 Ga N Sn3'
_chemical_formula_weight         661.04
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.719(3)
_cell_length_b                   13.047(3)
_cell_length_c                   12.719(3)
_cell_measurement_reflns_used    60
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      15.0
_cell_measurement_theta_min      10.0
_cell_volume                     2110.7(9)
_computing_cell_refinement       SMART
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    'bruker axs SHELXTL-PLUS'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 0.954
_diffrn_measured_fraction_theta_max 0.954
_diffrn_measurement_device_type  'Bruker axs CCD 1000'
_diffrn_measurement_method       '\w 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  0.0425
_diffrn_reflns_av_sigmaI/netI    0.0453
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            4848
_diffrn_reflns_theta_full        25.13
_diffrn_reflns_theta_max         25.13
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    5.011
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6760
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.080
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1248
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.30
_refine_diff_density_max         4.403
_refine_diff_density_min         -1.124
_refine_diff_density_rms         0.311
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.46(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.072
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2947
_refine_ls_number_restraints     67
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0748
_refine_ls_R_factor_gt           0.0691
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.005
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1020P)^2^+53.6694P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1869
_refine_ls_wR_factor_ref         0.1909
_reflns_number_gt                2696
_reflns_number_total             2947
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b203489c.txt
_cod_data_source_block           MD520
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1020P)^2^+53.6694P] 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^)+(0.1020P)^2^+53.6694P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2110.6(7)
_cod_original_sg_symbol_H-M      Pca2(1)
_cod_database_code               7011748