A Surprising Solvent Effect on the Crystal Structure of an Anionic Lanthanide Sandwich Complex†
Lorenz, Volker; Edelmann, Anja; Blaurock, Steffen; Freise, Fritjof; Edelmann, Frank T.; Organometallics 26 (2007) 6681–; doi:10.1021/om7006776

data_4073849
_publ_section_title
;
 A Surprising Solvent Effect on the Crystal Structure of an Anionic
 Lanthanide Sandwich Complex&#x2020;
;
_journal_issue                   26
_journal_name_full               Organometallics
_journal_page_first              6681
_journal_paper_doi               10.1021/om7006776
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C32 H58 Li O2 Si4 Tb'
_chemical_formula_weight         753.00
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 97.04(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.851(2)
_cell_length_b                   16.094(3)
_cell_length_c                   20.411(4)
_cell_measurement_reflns_used    675
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      29.25
_cell_measurement_theta_min      2.01
_cell_volume                     3863.6(13)
_computing_cell_refinement       'Stoe XAREA'
_computing_data_collection       'Stoe XAREA'
_computing_data_reduction        'Stoe XAREA'
_computing_molecular_graphics    'Bruker SHELXTL PLUS'
_computing_publication_material  'Bruker SHELXTL PLUS'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Stoe IPDS 2T'
_diffrn_measurement_method       omega-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  0.0800
_diffrn_reflns_av_sigmaI/netI    0.0844
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            35503
_diffrn_reflns_theta_full        29.25
_diffrn_reflns_theta_max         29.25
_diffrn_reflns_theta_min         2.01
_exptl_absorpt_coefficient_mu    1.979
_exptl_absorpt_correction_T_max  0.8267
_exptl_absorpt_correction_T_min  0.4378
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'light orange'
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1560
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         4.382
_refine_diff_density_min         -1.747
_refine_diff_density_rms         0.118
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.844
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     377
_refine_ls_number_reflns         10412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.844
_refine_ls_R_factor_all          0.0798
_refine_ls_R_factor_gt           0.0429
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0504P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0903
_refine_ls_wR_factor_ref         0.0977
_reflns_number_gt                6603
_reflns_number_total             10412
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om7006776-file003.cif
_cod_data_source_block           ip2_179a
_cod_original_cell_volume        3863.5(13)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4073849