Reactivity of (C5Me5)3LaLx Complexes: Synthesis of a Tris(pentamethylcyclopentadienyl) Complex with Two Additional Ligands, (C5Me5)3La(NCCMe3)2
William J. Evans; Thomas J. Mueller; Joseph W. Ziller; Journal of the American Chemical Society 131 (2009) 2678–2686; doi:10.1021/ja808763y

data_4103949
_publ_section_title
;
 Reactivity of (C5Me5)3LaLx Complexes: Synthesis of a
 Tris(pentamethylcyclopentadienyl) Complex with Two Additional Ligands,
 (C5Me5)3La(NCCMe3)2
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              2678
_journal_page_last               2686
_journal_paper_doi               10.1021/ja808763y
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C57 H83 La N6'
_chemical_formula_weight         991.20
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                76.5550(10)
_cell_angle_beta                 76.0620(10)
_cell_angle_gamma                63.4860(10)
_cell_formula_units_Z            2
_cell_length_a                   13.2291(8)
_cell_length_b                   14.6728(9)
_cell_length_c                   15.5581(10)
_cell_measurement_reflns_used    9897
_cell_measurement_temperature    103(2)
_cell_measurement_theta_max      28.24
_cell_measurement_theta_min      4.38
_cell_volume                     2595.5(3)
_computing_cell_refinement       'Bruker SMART APEX2/SAINT'
_computing_data_collection       'Bruker SMART APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      103(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD'
_diffrn_measurement_method       'phi and omega'
_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  0.0216
_diffrn_reflns_av_sigmaI/netI    0.0283
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            31532
_diffrn_reflns_theta_full        28.27
_diffrn_reflns_theta_max         28.27
_diffrn_reflns_theta_min         4.17
_diffrn_standards_decay_%        '< 1.0'
_exptl_absorpt_coefficient_mu    0.865
_exptl_absorpt_correction_T_max  0.8885
_exptl_absorpt_correction_T_min  0.8000
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.268
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cube
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.14
_refine_diff_density_max         1.732
_refine_diff_density_min         -0.532
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     593
_refine_ls_number_reflns         12691
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0390
_refine_ls_R_factor_gt           0.0315
_refine_ls_shift/su_max          0.328
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0485P)^2^+1.6404P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0794
_refine_ls_wR_factor_ref         0.0843
_reflns_number_gt                11232
_reflns_number_total             12691
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja808763y_si_001_5.cif
_cod_data_source_block           tjm10
_cod_database_code               4103949