Synthesis and Comparative η1-Alkyl and Sterically Induced Reduction Reactivity of (C5Me5)3Ln Complexes of La, Ce, Pr, Nd, and Sm
Evans, William J.; Perotti, Jeremy M.; Kozimor, Stosh A.; Champagne, Timothy M.; Davis, Benjamin L.; Nyce, Gregory W.; Fujimoto, Cy H.; Clark, Robert D.; Johnston, Matthew A.; Ziller, Joseph W.; Organometallics 24 (2005) 3916–; doi:10.1021/om050402l

data_4075992
_publ_section_title
;
 Synthesis and Comparative \h1-Alkyl and Sterically Induced Reduction
 Reactivity of (C5Me5)3Ln Complexes of La, Ce, Pr, Nd, and Sm
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              3916
_journal_paper_doi               10.1021/om050402l
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C40 H60 La2 Se2'
_chemical_formula_weight         976.62
_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           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 102.427(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5697(11)
_cell_length_b                   20.622(3)
_cell_length_c                   11.8095(15)
_cell_measurement_temperature    193(2)
_cell_volume                     2038.1(5)
_computing_cell_refinement       'Bruker SMART/SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0547
_diffrn_reflns_av_sigmaI/netI    0.0388
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            19231
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         1.98
_diffrn_standards_decay_%        '< 1.0'
_diffrn_standards_interval_count 'initial 50 frames recollected'
_diffrn_standards_number         '50 frames'
_exptl_absorpt_coefficient_mu    3.878
_exptl_absorpt_correction_T_max  0.4321
_exptl_absorpt_correction_T_min  0.3610
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            'Dark red'
_exptl_crystal_density_diffrn    1.591
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       multi-faceted-polyhedra
_exptl_crystal_F_000             964
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.26
_refine_diff_density_max         2.295
_refine_diff_density_min         -1.383
_refine_diff_density_rms         0.192
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.259
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         4167
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.259
_refine_ls_R_factor_all          0.0728
_refine_ls_R_factor_gt           0.0701
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0454P)^2^+27.2145P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1682
_refine_ls_wR_factor_ref         0.1695
_reflns_number_gt                3929
_reflns_number_total             4167
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om050402lsi20050518_041127.cif
_cod_data_source_block           bld14_(260799)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        2038.1(4)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4075992