Lanthanide(II) complexes of a phosphine-borane-stabilised carbanion.
Izod, Keith; Clegg, William; Harrington, Ross W.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6705–6709; doi:10.1039/c001468k

data_7025535
_publ_section_title
;
 Lanthanide(II) complexes of a phosphine-borane-stabilised carbanion.
;
_journal_issue                   29
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6705
_journal_page_last               6709
_journal_paper_doi               10.1039/c001468k
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C30 H78 B2 O3 P2 Si4 Sm'
_chemical_formula_sum            'C30 H78 B2 O3 P2 Si4 Sm'
_chemical_formula_weight         833.19
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                66.697(5)
_cell_angle_beta                 88.844(5)
_cell_angle_gamma                70.297(5)
_cell_formula_units_Z            2
_cell_length_a                   13.7414(8)
_cell_length_b                   13.7832(7)
_cell_length_c                   15.9703(8)
_cell_measurement_reflns_used    12873
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.53
_cell_measurement_theta_min      2.79
_cell_volume                     2592.9(3)
_computing_cell_refinement
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET)
(compiled May 6 2009,17:20:42)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET)
(compiled May 6 2009,17:20:42)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET)
(compiled May 6 2009,17:20:42)
;
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL and local programs'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 10.3968
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type
'Oxford Diffraction Gemini A Ultra diffractometer'
_diffrn_measurement_method       'thick-slice \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube with Enhance optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0671
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            27058
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.80
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.309
_exptl_absorpt_correction_T_max  0.780
_exptl_absorpt_correction_T_min  0.736
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.41 (release 06-05-2009 CrysAlis171 .NET)
(compiled May 6 2009,17:20:42)
Numerical absorption correction based on gaussian integration over
a multifaceted crystal model
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.067
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_platon_squeeze_details
;
;
_refine_diff_density_max         0.446
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.070
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.921
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         10171
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.921
_refine_ls_R_factor_all          0.0414
_refine_ls_R_factor_gt           0.0278
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0286P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0607
_refine_ls_wR_factor_ref         0.0620
_reflns_number_gt                7815
_reflns_number_total             10171
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c001468k.txt
_cod_data_source_block           ki423_compound5b
_cod_original_cell_volume        2592.9(2)
_cod_database_code               7025535