Base free lithium-organoaluminate and the gallium congener: potential precursors to heterometallic assemblies
Singh, Sanjay; Chai, Jianfang; Pal, Aritra; Jancik, Vojtech; Roesky, Herbert W.; Herbst-Irmer, Regine; Chemical Communications (Cambridge, United Kingdom)  (2007) 4934–4936; doi:10.1039/b712240c

data_7102311
_publ_section_title
;
 Base free lithium-organoaluminate and the gallium congener:
 potential precursors to heterometallic assemblies
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   46
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              4934
_journal_page_last               4936
_journal_paper_doi               10.1039/b712240c
_journal_year                    2007
_chemical_formula_sum            'C96 H146 Ga3 Li3 N6 O3'
_chemical_formula_weight         1662.17
_space_group_IT_number           173
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 6c'
_symmetry_space_group_name_H-M   'P 63'
_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                120.00
_cell_formula_units_Z            2
_cell_length_a                   15.902(2)
_cell_length_b                   15.902(2)
_cell_length_c                   21.419(3)
_cell_measurement_reflns_used    7032
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      58.892
_cell_measurement_theta_min      3.216
_cell_volume                     4690.7(11)
_computing_cell_refinement       'Bruker AXS SAINT (v 7.01A, Bruker 2003)'
_computing_data_collection       'Proteum (v 1.40, Bruker 2002)'
_computing_data_reduction        'Bruker AXS SAINT (v 7.01A, Bruker 2003)'
_computing_molecular_graphics    'Bruker AXS SHELXTL (v 6.12)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 5.602
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker three circle diffractometer'
_diffrn_measurement_method       'phi and omega scan'
_diffrn_radiation_monochromator  'mirror system'
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0330
_diffrn_reflns_av_sigmaI/netI    0.0203
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            33693
_diffrn_reflns_theta_full        59.07
_diffrn_reflns_theta_max         59.07
_diffrn_reflns_theta_min         3.21
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.376
_exptl_absorpt_correction_T_max  0.8202
_exptl_absorpt_correction_T_min  0.7705
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, Sheldrick 2007'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.177
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blocks
_exptl_crystal_F_000             1780
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.263
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.035
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.016(16)
_refine_ls_extinction_coef       0.00024(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     386
_refine_ls_number_reflns         4490
_refine_ls_number_restraints     57
_refine_ls_restrained_S_all      1.082
_refine_ls_R_factor_all          0.0224
_refine_ls_R_factor_gt           0.0218
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0428P)^2^+0.5250P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0601
_refine_ls_wR_factor_ref         0.0606
_reflns_number_gt                4404
_reflns_number_total             4490
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b712240c.txt
_cod_data_source_block           test
_cod_original_sg_symbol_H-M      P6(3)
_cod_database_code               7102311