Flexible Coordination Mode of a Donor-Functionalized Terphenyl Ligand in Monomeric Cp-Based Lanthanocenes
Rabe, Gerd W.; Riederer, Florian A.; Zhang-Presse, Mei; Rheingold, Arnold L.; Organometallics 28 (2009) 5277–; doi:10.1021/om900465c

data_4069871
_publ_section_title
;
 Flexible Coordination Mode of a Donor-Functionalized Terphenyl Ligand in
 Monomeric Cp-Based Lanthanocenes
;
_journal_issue                   17
_journal_name_full               Organometallics
_journal_page_first              5277
_journal_paper_doi               10.1021/om900465c
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C20 H20 O2 Sm'
_chemical_formula_weight         442.71
_chemical_name_systematic
; 

 ? 

;
_space_group_IT_number           92
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4abw 2nw'
_symmetry_space_group_name_H-M   'P 41 21 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4197(3)
_cell_length_b                   9.4197(3)
_cell_length_c                   26.592(2)
_cell_measurement_reflns_used    5658
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.53
_cell_measurement_theta_min      2.65
_cell_volume                     2359.5(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0267
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       34
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            13659
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.29
_exptl_absorpt_coefficient_mu    2.493
_exptl_absorpt_correction_T_max  0.5217
_exptl_absorpt_correction_T_min  0.5217
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.246
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             872
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.602
_refine_diff_density_min         -0.266
_refine_diff_density_rms         0.073
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.015(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     151
_refine_ls_number_reflns         2685
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0187
_refine_ls_R_factor_gt           0.0179
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0250P)^2^+0.2000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0451
_refine_ls_wR_factor_ref         0.0453
_reflns_number_gt                2606
_reflns_number_total             2685
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900465c_si_002.cif
_cod_data_source_block           rab83
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Tetragonal' changed to 'tetragonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P4(1)2(1)2
_cod_database_code               4069871