Strategies for the Synthesis of Lanthanum Dialkyl Complexes with Monoanionic Ancillary Ligands
Bambirra, Sergio; Perazzolo, Francesca; Boot, Steven J.; Sciarone, Timo J. J.; Meetsma, Auke; Hessen, Bart; Organometallics 27 (2008) 704–; doi:10.1021/om700919h

data_4070670
_publ_section_title
;
 Strategies for the Synthesis of Lanthanum Dialkyl Complexes with
 Monoanionic Ancillary Ligands
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              704
_journal_paper_doi               10.1021/om700919h
_journal_volume                  27
_journal_year                    2008
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C37 H57 Br2 La N2 O2, C4 H8 O'
_chemical_formula_sum            'C41 H65 Br2 La N2 O3'
_chemical_formula_weight         932.70
_chemical_name_systematic        ' ?'
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      11
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     heavy
_atom_sites_solution_secondary   direct
_audit_creation_date             '2005-04-21  09:49:29'
_audit_creation_method
;
 PLATON <TABLE ACC> option 
 SHELXL97-2 & Manual Editing 
;
_audit_update_record
;
 ?
;
_cell_angle_alpha                90
_cell_angle_beta                 91.951(3)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   10.045(2)
_cell_length_b                   20.093(4)
_cell_length_c                   10.410(2)
_cell_measurement_reflns_used    7127
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      29.12
_cell_measurement_theta_min      2.20
_cell_volume                     2099.9(7)
_computing_cell_refinement       'SAINTPLUS, Version 6.02A, (Bruker, 2000)'
_computing_data_collection       'SMART, Version 5.624, (Bruker, 2001)'
_computing_data_reduction        'XPREP, Version 5.1/NT, (Bruker, 2000)'
_computing_molecular_graphics
;
 PLUTO (Meetsma, 2004) 
 PLATON (Spek, 2003)
;
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
 DIRDIF-99 (Beurskens et al., 1999)
;
_diffrn_ambient_temperature      100(1)
_diffrn_detector_area_resol_mean 66.06
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
  Bruker Smart Apex; CCD area detector 
;
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_detector
;
  CCD area-detector
;
_diffrn_radiation_monochromator  'parallel mounted graphite'
_diffrn_radiation_source         'fine focus sealed Siemens Mo tube '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0772
_diffrn_reflns_av_sigmaI/netI    0.0684
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            16836
_diffrn_reflns_reduction_process
;
 Intensity data were corrected for Lorentz and polarization
  effects, decay and absorption and reduced to F~o~^2^
  using SAINT (Bruker, 2000) and SADABS (Sheldrick, 2001)
;
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.73
_diffrn_reflns_theta_min         2.82
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.957
_exptl_absorpt_correction_T_max  0.4157
_exptl_absorpt_correction_T_min  0.2728
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Sheldrick, Bruker, 2001))'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.475
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.36
_refine_diff_density_max         2.995
_refine_diff_density_min         -1.687
_refine_diff_density_rms         0.154
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         4581
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0614
_refine_ls_R_factor_gt           0.0464
_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^)+(0.0725P)^2^+0.5619P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1166
_refine_ls_wR_factor_ref         0.1271
_reflns_number_gt                3685
_reflns_number_total             4581
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om700919h-file006.cif
_cod_data_source_block           CP992
_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.

'_exptl_absorpt_correction_type' value 'Multi-Scan'
changed to 'multi-scan' 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 
;
_cod_original_sg_symbol_H-M      'P 21/m'
_cod_database_code               4070670
_vrn_publ_code_void_volume       19.8
_vrn_publ_code_frame_time_sec    10.0
_vrn_publ_code_meas_time_hour    8.0