2,2,6,6-Tetramethylpiperidinogallium as a Terminal and Bridging Ligand in Homo- and Heteroleptic Chromium, Nickel, and Cobalt Complexes
Annekathrin Seifert; Gerald Linti; Inorganic Chemistry 47 (2008) 11398–11404; doi:10.1021/ic801437n

data_4306624
_publ_contact_author_address
;University of Heidelberg
Institute of Inorganic Chemistry
Im Neuenheimer Feld 270
D-69120 Heidelberg
Germany
;
_publ_contact_author_email       gerald.linti@aci.uni-hedielberg.de
_publ_contact_author_fax         Int+6221546617
_publ_contact_author_name        'Gerald Linti'
_publ_contact_author_phone       Int+6221548468
_publ_section_title
;
2,2,6,6-Tetramethylpiperidinogallium as a Terminal and Bridging Ligand in
Homo- and Heteroleptic Chromium, Nickel, and Cobalt Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11398
_journal_page_last               11404
_journal_paper_doi               10.1021/ic801437n
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C33 H54 Cr2 Ga3 N3 O6'
_chemical_formula_weight         901.95
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 103.09(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.554(2)
_cell_length_b                   39.150(8)
_cell_length_c                   10.150(2)
_cell_measurement_temperature    200(2)
_cell_volume                     4084.9(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0754
_diffrn_reflns_av_sigmaI/netI    0.0527
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       44
_diffrn_reflns_limit_k_min       -44
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            12870
_diffrn_reflns_theta_full        23.98
_diffrn_reflns_theta_max         23.98
_diffrn_reflns_theta_min         2.05
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    2.509
_exptl_absorpt_correction_T_max  .49
_exptl_absorpt_correction_T_min  .48
_exptl_absorpt_correction_type   sphere
_exptl_crystal_colour            darkblue
_exptl_crystal_density_diffrn    1.467
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1848
_exptl_crystal_size_max          .43
_exptl_crystal_size_mid          .36
_exptl_crystal_size_min          .30
_refine_diff_density_max         0.764
_refine_diff_density_min         -0.588
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.891
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     238
_refine_ls_number_reflns         3179
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.891
_refine_ls_R_factor_all          0.0509
_refine_ls_R_factor_gt           0.0362
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0664P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0888
_refine_ls_wR_factor_ref         0.0938
_reflns_number_gt                2401
_reflns_number_total             3179
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic801437n_si_001_2.cif
_cod_data_source_block           as78_comp_3
_cod_original_cell_volume        4085.0(14)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4306624