The reaction of "GaI" with a 1,3-diyne: synthesis, characterisation and reactivity of a novel C‒C coupled ene‒diyne‒bis(gem-organodigallium(III)) complex
Baker, Robert J.; Jones, Cameron; Chemical Communications (Cambridge, United Kingdom)  (2003) 390–391; doi:10.1039/b210868m

data_7103954
_publ_section_title
;
 The reaction of "GaI" with a 1,3-diyne: synthesis, characterisation and
 reactivity of a novel C--C coupled ene--diyne--bis(gem-organodigallium(III))
 complex
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   3
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              390
_journal_page_last               391
_journal_paper_doi               10.1039/b210868m
_journal_year                    2003
_chemical_formula_sum            'C20 H36 Ga4 I8 Si4'
_chemical_formula_weight         1682.93
_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                 115.43(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.504(2)
_cell_length_b                   18.886(4)
_cell_length_c                   12.232(2)
_cell_measurement_temperature    150(2)
_cell_volume                     2191.5(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_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  0.1146
_diffrn_reflns_av_sigmaI/netI    0.0519
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            38678
_diffrn_reflns_theta_full        27.15
_diffrn_reflns_theta_max         27.15
_diffrn_reflns_theta_min         2.14
_exptl_absorpt_coefficient_mu    8.189
_exptl_absorpt_correction_T_max  0.45
_exptl_absorpt_correction_T_min  0.24
_exptl_absorpt_correction_type   'sortav (blessing)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.550
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.139
_refine_diff_density_min         -1.769
_refine_diff_density_rms         0.231
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.058
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     169
_refine_ls_number_reflns         4845
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0541
_refine_ls_R_factor_gt           0.0386
_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^)+(0.0271P)^2^+11.7627P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0812
_refine_ls_wR_factor_ref         0.0870
_reflns_number_gt                3968
_reflns_number_total             4845
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b210868m.txt
_cod_data_source_block           compound_2
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7103954