Oligonuclear Gallium Nitrogen Cage Compounds: Molecular Intermediates on the Way from Gallium Hydrazides to Gallium Nitride
Werner Uhl; Thomas Abel; Elke Hagemeier; Alexander Hepp; Marcus Layh; Babak Rezaeirad; Heinrich Luftmann; Inorganic Chemistry 50 (2011) 325–335; doi:10.1021/ic1019839

data_4324149
_publ_section_title
;
 Oligonuclear Gallium Nitrogen Cage Compounds: Molecular Intermediates on
 the Way from Gallium Hydrazides to Gallium Nitride
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              325
_journal_page_last               335
_journal_paper_doi               10.1021/ic1019839
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'C18 H43 Ga2 N3'
_chemical_formula_weight         440.99
_chemical_name_systematic
; 
 ? 
;
_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                 100.98(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.113(2)
_cell_length_b                   13.965(3)
_cell_length_c                   14.351(3)
_cell_measurement_reflns_used    30394
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      29.615
_cell_measurement_theta_min      1.825
_cell_volume                     2383.1(9)
_computing_cell_refinement       'Bruker SAINT+'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_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      153(2)
_diffrn_measured_fraction_theta_full 0.966
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type  'imaging plate detector system'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focused sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0393
_diffrn_reflns_av_sigmaI/netI    0.0436
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            18822
_diffrn_reflns_theta_full        29.01
_diffrn_reflns_theta_max         29.01
_diffrn_reflns_theta_min         2.05
_exptl_absorpt_coefficient_mu    2.265
_exptl_absorpt_correction_T_max  0.5596
_exptl_absorpt_correction_T_min  0.4570
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADBAS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.229
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.29
_refine_diff_density_max         0.490
_refine_diff_density_min         -0.581
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.155
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     252
_refine_ls_number_reflns         6121
_refine_ls_number_restraints     42
_refine_ls_restrained_S_all      1.153
_refine_ls_R_factor_all          0.0872
_refine_ls_R_factor_gt           0.0588
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0322P)^2^+2.2607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0949
_refine_ls_wR_factor_ref         0.1023
_reflns_number_gt                4681
_reflns_number_total             6121
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic1019839_si_001_3.cif
_cod_data_source_block           sad
_cod_original_cell_volume        2383.2(8)
_cod_database_code               4324149