Group 13 decamethylmetallocenium cations
Macdonald, Charles L. B.; Gorden, John D.; Voigt, Andreas; Filipponi, Silvia; Cowley, Alan H.; Dalton Transactions  (2008) 1161–1176; doi:10.1039/b716220k

data_7003459
_publ_section_title
;
 Group 13 decamethylmetallocenium cations
;
_journal_issue                   9
_journal_name_full               'Dalton Transactions'
_journal_page_first              1161
_journal_page_last               1176
_journal_paper_doi               10.1039/b716220k
_journal_year                    2008
_chemical_formula_moiety         'C21 H33 Ga1'
_chemical_formula_sum            'C21 H33 Ga'
_chemical_formula_weight         355.19
_chemical_name_common            bis(pentamethylcyclopentadienyl)methylgallane
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 93.797(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.8112(4)
_cell_length_b                   11.2335(4)
_cell_length_c                   11.1606(6)
_cell_measurement_reflns_used    11100
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      24.98
_cell_measurement_theta_min      3.29
_cell_volume                     977.16(8)
_computing_cell_refinement       DENZO
_computing_data_collection       'Nonius Collect'
_computing_data_reduction        DENZO
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SHELX-93
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius KAPPA-CCD'
_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  0.0793
_diffrn_reflns_av_sigmaI/netI    0.0630
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            11100
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         3.29
_exptl_absorpt_coefficient_mu    1.404
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.207
_exptl_crystal_description       block
_exptl_crystal_F_000             380
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.2
_refine_diff_density_max         4.347
_refine_diff_density_min         -1.385
_refine_diff_density_rms         0.272
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.12(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.408
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3352
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.408
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.1135
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2995
_refine_ls_wR_factor_ref         0.3038
_reflns_number_gt                3123
_reflns_number_total             3352
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b716220k.txt
_cod_data_source_block           13
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               7003459